| 101 | A period 5 oscillator that was found in August 1994. | 101.rle | 23/3 | 64 | 18x12 | |
| 104P177 | A period 177 oscillator discovered by Karel Suhajda in June 2007 | 104p177.rle | 23/3 | 104 | 46x46 | |
| 104P177_synth | A 24-glider synthesis of 104P177 | 104p177_synth.rle | 23/3 | 312 | 167x88 | |
| 104P177 reactions | Some reactions involving a glider and 105P177 | 104p177reactions.rle | 23/3 | 819 | 377x173 | |
| 104P25 | A period-25 oscillator | 104p25.rle | 23/3 | 104 | 38x23 | |
| 105P25 | A period-25 oscillator | 105p25.rle | 23/3 | 105 | 34x23 | |
| 106P135 | The smallest known period-135 oscillator. | 106p135.rle | 23/3 | 106 | 54x29 | |
| 109-still-lifes | A collection of 109 still life syntheses by David Buckingham. | 109-still-lifes.rle | 23/3 | 2786 | 246x279 | |
| 10-cell infinite growth | A 10-cell infinite growth pattern found in 1997. No pattern with fe | 10cellinfinitegro... | 23/3 | 10 | 8x6 | |
| 10-engine Cordership | A c/12 period 96 diagonal Cordership that uses 10 switch engines, which was t... | 10enginecordershi... | 23/3 | 212 | 88x88 | |
| 110P62 | The smallest known period-62 oscillator. | 110p62.rle | 23/3 | 110 | 41x26 | |
| 112P15 | http://conwaylife.com/wiki/112P15 | 112p15.rle | 23/3 | 112 | 25x25 | |
| 112P15_synth | Glider synthesis of 112P15 | 112p15_synth.rle | 23/3 | 536 | 258x81 | |
| 112P51 | The first true period 51 oscillator found. Discovered in March 2009. | 112p51.rle | 23/3 | 112 | 37x37 | |
| 112P51_synth | A 76-glider synthesis of 112P51 | 112p51_synth.rle | 23/3 | 380 | 187x187 | |
| 112P51 extended | An extension of the period 51 oscillator 112P51. | 112p51extended.rle | 23/3 | 440 | 64x64 | |
| 114P6H1V0 | A period 6 orthogonal spaceship with speed c/6 found in October 2008. | 114p6h1v0.rle | 23/3 | 114 | 16x32 | |
| 114P6H1V0 pushalong | A pushalong for the c/6 orthogonal period 6 spaceship 114P6H1V0. | 114p6h1v0pushalon... | 23/3 | 158 | 30x43 | |
| 114P6H1V0 pushalongs | Pushalongs for the c/6 orthogonal period 6 spaceship 114P6H1V0. | 114p6h1v0pushalon... | 23/3 | 494 | 63x60 | |
| 114p84 | The smallest known period-84 oscillator. | 114p84.rle | 23/3 | 114 | 23x26 | |
| 117P18 | The first period 18 oscillator to be found. Found no later than May | 117p18.rle | 23/3 | 117 | 39x30 | |
| 117P9H3V0 | The first known period 9 spaceship | 117p9h3v0.rle | 23/3 | 117 | 17x29 | |
| 119P4H1V0 | The first c/4 orthogonal spaceship to be discovered | 119p4h1v0.rle | 23/3 | 119 | 35x19 | |
| 119P4H1V0 tagalong | A tagalong for 119P4H1V0 | 119p4h1v0tagalong... | 23/3 | 144 | 44x19 | |
| 122p80.1 | The smallest known period-80 oscillator. | 122p801.rle | 23/3 | 122 | 45x41 | |
| 1-2-3 | A period 3 oscillator that was found in August 1972. | 123.rle | 23/3 | 26 | 10x9 | |
| 1-2-3-4 | A period 4 oscillator. | 1234.rle | 23/3 | 28 | 11x11 | |
| 1-2-3-4_synth | Glider syntheses of 1-2-3-4. | 1234_synth.rle | 23/3 | 804 | 158x120 | |
| 123_synth | Glider synthesis of 1-2-3 | 123_synth.rle | 23/3 | 950 | 611x273 | |
| 123P27.1 | The first period 27 oscillator to be found. Found on November 12, 2002. | 123p271.rle | 23/3 | 123 | 20x22 | |
| 124P21 | The first period 21 oscillator to be found. Discovered on February | 124p21.rle | 23/3 | 124 | 36x25 | |
| 124P37 | The first period 37 oscillator to be found. Discovered in April 2009. | 124p37.rle | 23/3 | 124 | 37x37 | |
| 126P3H1V0 | The basis of 117P9H3V0 | 126p3h1v0.rle | 23/3 | 126 | 17x33 | |
| 126p78.1 | The smallest known period-78 oscillator. | 126p781.rle | 23/3 | 126 | 23x34 | |
| 128P10.2 | http://conwaylife.com/wiki/128P10.2 | 128p102.rle | 23/3 | 128 | 35x35 | |
| 128P13.1 | A period 13 oscillator that is a variant on 34P13.1. | 128p13.1.rle | 23/3 | 136 | 32x32 | |
| 132P37 | The second unique p37 oscillator to be found. | 132p37.rle | 23/3 | 132 | 47x47 | |
| 134P25 | The first period 25 oscillator to be found. Found on September 23, | 134p25.rle | 23/3 | 134 | 35x23 | |
| 134P39.1 | The first period 39 oscillator to be found. Discovered on July 24, | 134p39.1.rle | 23/3 | 134 | 25x29 | |
| 13-engine Cordership | The first c/12 diagonal spaceship to be found | 13enginecordershi... | 23/3 | 324 | 97x98 | |
| 144P24 | One of the first period 24 oscillators to be found. Discovered on November 20... | 144p24.rle | 23/3 | 144 | 25x35 | |
| 145P20 | An unnamed period 20 oscillator. Found on March 22, 1995. | 145p20.rle | 23/3 | 145 | 28x21 | |
| 151P3H1V0 | A non-monotonic c/3 spaceship based on 233P3H1V0 | 151p3h1v0.rle | 23/3 | 151 | 33x21 | |
| 160P10H2V0 | The first period-10, c/5 orthogonal spaceship to be discovered | 160p10h2v0.rle | 23/3 | 160 | 19x37 | |
| 168P22.1 | The first period 22 oscillator to be found. Found on April 17, 1997. | 168p22.1.rle | 23/3 | 168 | 33x23 | |
| 17c/45_Reaction | A reaction between a pi-heptomino and a blinker in which the pi moves forward... | 17c45reaction.rle | 23/3 | 11 | 16x5 | |
| 17columnheavyweightvolcano | 17columnheavyweig... | 23/3 | 122 | 16x24 | ||
| 186P24 | One of the first period 24 oscillators to be found. Discovered in 1994. | 186p24.rle | 23/3 | 186 | 58x26 | |
| 18P2.471 | A period 2 oscillator with the same rotor as the beacon. | 18p2.471.rle | 23/3 | 18 | 7x7 | |
| 1998-eater-stamp-collection | Collection of 88 glider eaters | 1998-eater-stamp-... | 23/3 | 5501 | 241x350 | |
| 1 beacon | Approximately the 32nd-most common oscillator. | 1beacon.rle | 23/3 | 18 | 7x7 | |
| 1 beacon_synth | A 10-glider synthesis of 1 beacon | 1beacon_synth.rle | 23/3 | 68 | 35x30 | |
| 1xN quadratic growth | The first quadratic growth pattern to fit into a 1xN bounding box, found by S... | 1xnquadraticgrowt... | 23/3 | 12599 | 1013783x1 | |
| 20P2 | The 34th most common oscillator. | 20p2.rle | 23/3 | 21 | 8x11 | |
| 21P2 | The 38th most common oscillator. | 21p2.rle | 23/3 | 16 | 7x7 | |
| 21P2_synth | An 11-glider synthesis of a 16-bit period 2 oscillator | 21p2_synth.rle | 23/3 | 71 | 41x27 | |
| 22P2 | A period 2 oscillator. | 22p2.rle | 23/3 | 20 | 7x8 | |
| 22P36 | A period 36 oscillator, discovered on January 29, 1995. | 22p36.rle | 23/3 | 22 | 14x18 | |
| 22P36_synth | A 9-glider synthesis of 22P36 | 22p36_synth.rle | 23/3 | 109 | 134x28 | |
| 23334M | A methuselah with lifespan 23334 found on February 20, 2005. | 23334m.rle | 23/3 | 12 | 5x8 | |
| 233P3H1V0 | The first non-monotonic period 3 spaceship to be discovered | 233p3h1v0.rle | 23/3 | 233 | 31x36 | |
| (23,5)c/79 Herschel climber | http://conwaylife.com/wiki/(23,5)c/79_Herschel_climber | 235c79climber.rle | 23/3 | 55 | 59x98 | |
| 23P2 | A period 2 oscillator. | 23p2.rle | 23/3 | 17 | 7x8 | |
| 23P2_synth | Glider synthesis of 23P2 | 23p2_synth.rle | 23/3 | 299 | 156x50 | |
| 24-cell quadratic growth | It had been the smallest known pattern, that exhibits quadratic population | 24cellquadraticgr... | 23/3 | 24 | 39786x143 | |
| 24P10 | the smallest known period-10 oscillator | 24p10.rle | 23/3 | 24 | 13x9 | |
| 24P2 | A period 2 oscillator. | 24p2.rle | 23/3 | 18 | 8x7 | |
| 258p3 | 258p3.rle | 23/3 | 258 | 28x25 | ||
| 158P3 on Achim's p11 | The first known non-trivial period 33 oscillator | 258p3onachimsp11.rle | 23/3 | 330 | 49x31 | |
| 25-cell quadratic growth | It had been the smallest known pattern, that exhibits quadratic population | 25cellquadraticgr... | 23/3 | 25 | 21372x172 | |
| 25P3H1V0.1 | A c/3 orthogonal period 3 spaceship with a minimum of 25 cells -- the lowest | 25p3h1v0.1.rle | 23/3 | 25 | 16x8 | |
| 25p3h1v0.1_synth.rle | Original synthesis method found January 6, 2015 by Martin Grant. | 25p3h1v0.1_synth.rle | 23/3 | 773 | 374x494 | |
| 25P3H1V0.2 | A c/3 orthogonal period 3 spaceship with 25 cells in each generatio | 25p3h1v0.2.rle | 23/3 | 25 | 16x5 | |
| 25p3h1v0.2_synth.rle | Original synthesis method found January 6, 2015 by Martin Grant. | 25p3h1v0.2_synth.rle | 23/3 | 773 | 374x494 | |
| 26-cell quadratic growth | A 26-cell pattern that exhibits quadratic growth (the smallest known such pat... | 26cellquadraticgr... | 23/3 | 26 | 16193x15089 | |
| 26P2 | The 55th most common oscillator. | 26p2.rle | 23/3 | 20 | 8x7 | |
| 26P40 | A period 40 oscillator, discovered in March or April, 2009. | 26p40.rle | 23/3 | 26 | 17x14 | |
| (27,1)c/72 Herschel climber | http://conwaylife.com/wiki/(27,1)c/72_Herschel_climber | 271c72climber.rle | 23/3 | 108 | 115x125 | |
| 274P6H1V0 | The first c/6 orthogonal spaceship to be discovered that does not | 274p6h1v0.rle | 23/3 | 274 | 58x19 | |
| 28p7.1_synth | Glider synthesis of 28P7.1 | 28p7.1_synth.rle | 23/3 | 932 | 711x238 | |
| 28P7.2 | A period 7 oscillator that is tied with burloaferimeter and 28P7.1 | 28p7.2.rle | 23/3 | 28 | 12x11 | |
| 28P7.2_synth | A 22-glider synthesis of 28P7.2, found in September, 2000 | 28p7.2_synth.rle | 23/3 | 140 | 87x83 | |
| 28P7.1 | An unnamed period 7 oscillator that is tied as the smallest known. | 28p71.rle | 23/3 | 28 | 13x9 | |
| 29-still-lifes | Most of these 29 glider syntheses were found by running | 29-still-lifes.rle | 23/3 | 2114 | 229x229 | |
| 295P5H1V1 | The first c/5 diagonal spaceship to be found. Has period 5. Discovered on Nov... | 295p5h1v1.rle | 23/3 | 295 | 52x52 | |
| 29-bit still life #1 | The most common 29-bit still life in B3/S23/C1 on Catagolue. | 29bitstilllifeno1... | 23/3 | 29 | 8x10 | |
| 29-1.rle | 29bitstilllifeno1... | 23/3 | 59 | 68x49 | ||
| 29P9 | The smallest known period 9 oscillator | 29p9.rle | 23/3 | 29 | 10x10 | |
| 29P9_synth | Glider synthesis of 29P9 | 29p9_synth.rle | 23/3 | 584 | 292x42 | |
| 2c5-engineless-rake-p185 | engineless p185 2c/5 rake: Paul Tooke, 14 December 2004; | 2c5-engineless-ra... | 23/3 | 2633 | 531x201 | |
| 2c5-orthogonal | All known 2c/5 spaceships up to 90 bits | 2c5-orthogonal.rle | 23/3 | 30296 | 1347x760 | |
| 2c5-spaceship-gun-p416 | p416 2c/5 spaceship gun: Dave Greene, 11 Apr 2003 | 2c5-spaceship-gun... | 23/3 | 26614 | 990x979 | |
| 2c5-spaceship-gun-p690 | p690 gun for a 2c/5 spaceship. | 2c5-spaceship-gun... | 23/3 | 12611 | 871x854 | |
| 2c5-spaceship-rake-p240 | p240 c/2 forward rake for a 2c/5 spaceship. | 2c5-spaceship-rak... | 23/3 | 12281 | 1376x297 | |
| 2c/5 ladders | Some 2c/5 ladders for the Life without death rule, found in 2000. | 2c5ladders.rle | 012345678/3 | 1894 | 13x274 | |
| 2c/5 puffer 1 | 2c/5 glide-reflective dirty puffer, discovered 29 February 1999 | 2c5puffer1.rle | 23/3 | 384 | 112x75 | |
| 2-engine Cordership | The smallest known Cordership. | 2enginecordership... | 23/3 | 100 | 41x49 | |
| 2enginecordership_synth | 9-glider synthesis of the 2-engine Cordership | 2enginecordership... | 23/3 | 45 | 175x167 | |
| 2 fumaroles | A period 10 oscillator that is a non-trivial combination of two fumaroles and... | 2fumaroles.rle | 23/3 | 43 | 15x12 | |
| 2x12 infinite growth | The only pattern that fits in a 2x12 box that exhibits infinite gro | 2x12infinitegrowt... | 23/3 | 17 | 12x2 | |
| 2x2 10-cell still lifes | All 126 still lifes in the 2x2 (125/36) rule. | 2x210cellstilllif... | 125/36 | 1260 | 222x50 | |
| 2x2 2-cell still lifes | All 2-cell still lifes in the 2x2 (125/36) rule. | 2x22cellstilllife... | 125/36 | 4 | 5x2 | |
| 2x2 3-cell still lifes | All 3-cell still lifes in the 2x2 (125/36) rule. | 2x23cellstilllife... | 125/36 | 3 | 3x3 | |
| 2x2 4-cell still lifes | All 4-cell still lifes in the 2x2 (125/36) rule. | 2x24cellstilllife... | 125/36 | 12 | 14x4 | |
| 2x2 5-cell still lifes | All 5-cell still lifes in the 2x2 (125/36) rule. | 2x25cellstilllife... | 125/36 | 20 | 22x5 | |
| 2x2 6-cell still lifes | All 9 6-cell still lifes in the 2x2 (125/36) rule. | 2x26cellstilllife... | 125/36 | 54 | 58x6 | |
| 2x2 7-cell still lifes | All 10 7-cell still lifes in the 2x2 (125/36) rule. | 2x27cellstilllife... | 125/36 | 70 | 36x15 | |
| 2x2 8-cell still lifes | All 27 8-cell still lifes in the 2x2 (125/36) rule. | 2x28cellstilllife... | 125/36 | 216 | 111x17 | |
| 2x2 9-cell still lifes | All 48 9-cell still lifes in the 2x2 (125/36) rule. | 2x29cellstilllife... | 125/36 | 432 | 229x17 | |
| 2x2 block oscillators | Some block oscillators in the 2x2 rule. | 2x2blockoscillato... | 125/36 | 40 | 26x2 | |
| 2x2 glider | A diagonal c/8 glider in the 2x2 (125/36) rule. | 2x2glider.rle | 125/36 | 6 | 5x4 | |
| 2x2 line puffer | The first known pattern to exhibit infinite growth in 2x2. | 2x2linepuffer.rle | 125/36 | 9 | 5x9 | |
| 2x2 oscillators | A stamp collection of oscillators in the 2x2 (125/36) rule. | 2x2oscillators.rle | 125/36 | 4039 | 277x175 | |
| 2x2 period 2 oscillators | A collection of period 2 oscillators in the 2x2 (125/36) rule. | 2x2period2oscilla... | 125/36 | 132 | 51x16 | |
| 2x2 still lifes | Some common still lifes in the 2x2 (125/36) rule. | 2x2stills.rle | 125/36 | 80 | 38x12 | |
| 30P4H2V0.4 | http://conwaylife.com/wiki/30P4H2V0.4 | 30p4h2v04.rle | 23/3 | 30 | 14x9 | |
| 30P4H2V0.4 glider synthesis | synthesis found on 10 September 2015 | 30p4h2v04_synth.rle | 23/3 | 1475 | 757x100 | |
| 30P5H2V0 | An orthogonal spaceship with period 5. The smallest known 2c/5 spac | 30p5h2v0.rle | 23/3 | 30 | 13x11 | |
| 30P5H2V0 Synthesis | 65-glider synthesis 30P5H2V0 | 30p5h2v0_synth.rle | 23/3 | 1193 | 1386x338 | |
| 31c/240 reaction | A reaction consisting of Herschels climbing blocks, used by some spaceships, ... | 31c240reaction.rle | 23/3 | 11 | 10x26 | |
| 31P8H4V0 | http://conwaylife.com/wiki/31P8H4V0 | 31p8h4v0.rle | 23/3 | 31 | 11x11 | |
| 339P7H1V0 | The second known c/7 spaceship, found by Matthias Merzenich in February 2017. | 339p7h1v0.rle | 23/3 | 339 | 17x96 | |
| (34,7)c/156 Herschel climber | http://conwaylife.com/wiki/(34,7)c/156_Herschel_climber | 347c156climber.rle | 23/3 | 44 | 303x60 | |
| 34P13 | The smallest known period 13 oscillator. | 34p13.rle | 23/3 | 34 | 16x16 | |
| 34P64 | A period-64 oscillator discovered on 30 Oct 2010 using Nicolay | 34p64.rle | 23/3 | 34 | 21x21 | |
| 35201M | http://conwaylife.com/wiki/35201M | 35201m.rle | 23/3 | 183 | 20x20 | |
| 35P52 | With a minimum population of 35 cells it is the smallest period 52 | 35p52.rle | 23/3 | 35 | 17x17 | |
| 35P52_synth | A 17-glider synthesis of 35P52 | 35p52_synth.rle | 23/3 | 120 | 94x79 | |
| 36P22 | The smallest known period 22 oscillator. | 36p22.rle | 23/3 | 36 | 27x10 | |
| 36P22_synth | A 12-glider synthesis of 36P22 | 36p22_synth.rle | 23/3 | 96 | 68x32 | |
| 37P10.1 | The smallest known non-trivial period-10 oscillator in terms of | 37p10.1.rle | 23/3 | 37 | 13x10 | |
| 37P10.2 | A small period-10 oscillator related to 37P10.1 | 37p10.2.rle | 23/3 | 37 | 13x13 | |
| 37P4H1V0 | http://conwaylife.com/wiki/37P4H1V0 | 37p4h1v0.rle | 23/3 | 37 | 19x12 | |
| 37P7.1 | A small period 7 sparker discovered in October, 2005 | 37p7.1.rle | 23/3 | 37 | 12x10 | |
| 38P11.1 | The first period 11 oscillator to be found, and still the smallest | 38p111.rle | 23/3 | 38 | 12x12 | |
| 38P24 | A period-24 oscillator found on 17 Oct 2002 using Gabriel Nivasch's | 38p24.rle | 23/3 | 38 | 20x20 | |
| 38P7.2 | A period 7 oscillator discovered on February 17, 2009 | 38p7.2.rle | 23/3 | 38 | 13x11 | |
| 38P7.2_synth | Glider synthesis of 38P7.2 | 38p7.2_synth.rle | 23/3 | 224 | 175x37 | |
| 38P7.3 | An alternate form of 38P7.2 | 38p7.3.rle | 23/3 | 38 | 13x13 | |
| 3c/10 pi wave | http://conwaylife.com/wiki/3c/10_pi_wave | 3c10piwave.rle | 23/3 | 132 | 45x29 | |
| 3c/14 pi wave | http://conwaylife.com/wiki/3c/14_pi_wave | 3c14piwave.rle | 23/3 | 90 | 39x39 | |
| 3c/7 wave | http://conwaylife.com/wiki/3c/7_wave | 3c7wave.rle | 23/3 | 168 | 63x9 | |
| 3-engine Cordership | A diagonal c/12 period 96 3-engine Cordership found on January 12, 2004. | 3enginecordership... | 23/3 | 149 | 58x65 | |
| 3-engine Cordership_synth | Glider synthesis of 3-engine Cordership. | 3enginecordership... | 23/3 | 75 | 98x106 | |
| 3-engine Cordership eater | An eater for the 3-engine Cordership. | 3enginecordership... | 23/3 | 222 | 89x97 | |
| 3-engine Cordership gun | A gun that fires 3-engine Corderships. | 3enginecordership... | 23/3 | 1812 | 279x258 | |
| 3-engine Cordership LWSS reflection | A 3-engine Cordership reflecting a lightweight spaceship by 90 degr | 3enginecordership... | 23/3 | 161 | 63x68 | |
| 3-engine Cordership rake | A period 240 c/2 orthogonal 3-engine Cordership rake created on Jan | 3enginecordership... | 23/3 | 3685 | 461x424 | |
| 400P49 | A small period 49 oscillator based off of Noam Elkies' reflector te | 400p49.rle | 23/3 | 400 | 65x65 | |
| 41P7.2 | A period 7 oscillator with an isolated two-bit spark | 41p7.2.rle | 23/3 | 41 | 13x14 | |
| 42P10.1 | The first period 10 oscillator to be found. Found no later than 1976. | 42p101.rle | 23/3 | 42 | 13x13 | |
| 43P18 | The smallest known period 18 oscillator. | 43p18.rle | 23/3 | 43 | 20x15 | |
| 43P18_synth | A 16-glider synthesis of 43P18 | 43p18_synth.rle | 23/3 | 411 | 120x81 | |
| 440P49.1 | The first period 49 oscillator to be discovered. Found on August 1, | 440p49.1.rle | 23/3 | 440 | 65x65 | |
| 44P12.2 | http://conwaylife.com/wiki/44P12.2 | 44p122.rle | 23/3 | 44 | 14x14 | |
| 44P5H2V0 | The first 2c/5 spaceship to be discovered | 44p5h2v0.rle | 23/3 | 44 | 15x11 | |
| 44P5H2V0 | The first 2c/5 orthogonal spaceship, discovered on July 23, 1991 | 44p5h2v0tagalongs... | 23/3 | 301 | 66x35 | |
| 44P7.2 | A period 7 oscillator that supplies two accessible domino sparks, discovered ... | 44p7.2.rle | 23/3 | 44 | 16x16 | |
| 45 hivenudgers | All 45 distinct period 4 c/2 orthogonal hivenudger spaceships. | 45hivenudgers.rle | 23/3 | 2250 | 155x116 | |
| 46P22 | A period 22 oscillator discovered on September 8, 2005 | 46p22.rle | 23/3 | 46 | 17x16 | |
| 46P4H1V0 | The smallest known c/4 orthogonal spaceship. Has period 4. | 46p4h1v0.rle | 23/3 | 46 | 19x10 | |
| 47P72 | The first period 72 oscillator to be discovered. Found in July 1990 | 47p72.rle | 23/3 | 47 | 30x15 | |
| 47P72_synth | Glider synthesis of 47P72, a period 72 oscillator | 47p72_synth.rle | 23/3 | 391 | 150x90 | |
| 4-8-12_diamond | A pure glider generator. | 4812diamond.rle | 23/3 | 36 | 12x9 | |
| 48P20 | A period-20 oscillator found in 2008 | 48p20.rle | 23/3 | 48 | 15x15 | |
| 48P22 | A period 22 oscillator discovered on March 4, 2009 | 48p22.rle | 23/3 | 48 | 16x16 | |
| 48P22.1 | http://conwaylife.com/wiki/48P22.1 | 48p221.rle | 23/3 | 48 | 16x16 | |
| 48P31 | The first known period-31 oscillator | 48p31.rle | 23/3 | 48 | 24x13 | |
| 49P88 | A small non-trivial period 88 oscillator, discovered on September 1 | 49p88.rle | 23/3 | 49 | 27x25 | |
| 49P88_synth | A 16-glider synthesis of 49P88 | 49p88_synth.rle | 23/3 | 355 | 117x81 | |
| 4 boats | A period 2 oscillator made up of 4 boats. | 4boats.rle | 23/3 | 20 | 8x8 | |
| Four boats_synth | Glider synthesis of four boats (aka. hourglass). | 4boats_synth.rle | 23/3 | 362 | 116x104 | |
| 4c/13 ladders | Some 4c/13 ladders that were discovered in 2000 for the Life withou | 4c13ladders.rle | 012345678/3 | 6374 | 52x507 | |
| 4c/9 ladders | Several related 4c/9 ladders for the Life without death rule, found | 4c9ladders.rle | 012345678/3 | 1899 | 20x258 | |
| 4-engine Cordership | A 4-engine c/12 period 96 diagonal Cordership found on July 9, 2005. | 4enginecordership... | 23/3 | 134 | 76x76 | |
| 4-engine Cordership synth | 14-glider recipe for 4-engine Cordership, minimum population 134 | 4enginecordership... | 23/3 | 70 | 131x131 | |
| 4-engine Cordership v2 | A diagonal period 96 c/12 four-engine Cordership found on July 9, 2005. | 4enginecordership... | 23/3 | 136 | 77x74 | |
| 50P35 | A period 35 oscillator. | 50p35.rle | 23/3 | 50 | 33x21 | |
| 50P35_synth | Glider synthesis of 50P35 | 50p35_synth.rle | 23/3 | 308 | 218x69 | |
| 54P17.1 | The first period 17 oscillator to be found. Discovered on April 27, | 54p171.rle | 23/3 | 54 | 15x13 | |
| 56P18 | A period-18 oscillator found on 16 Oct 2002 using Gabriel Nivasch's | 56p18.rle | 23/3 | 56 | 29x29 | |
| 56P27 | A period-27 oscillator discovered in May, 2010 | 56p27.rle | 23/3 | 56 | 30x30 | |
| 56P6H1V0 | Period 6 c/6 orthogonal spaceship. Discovered in May 2009. | 56p6h1v0.rle | 23/3 | 56 | 26x12 | |
| 58P5H1V1 | The smallest known c/5 diagonal spaceship | 58p5h1v1.rle | 23/3 | 58 | 23x23 | |
| 5blink | http://conwaylife.com/wiki/5blink | 5blink.rle | 23/3 | 28 | 13x9 | |
| 5-engine Cordership | A diagonal c/12 period 96 Cordership found on June 5, 2005. | 5enginecordership... | 23/3 | 210 | 104x75 | |
| 5-engine Cordership synth | 18-glider synthesis of the 5-engine Cordership. | 5enginecordership... | 23/3 | 90 | 162x158 | |
| 5x5 infinite growth | The only pattern that fits in a 5x5 box that exhibits infinite grow | 5x5infinitegrowth... | 23/3 | 13 | 5x5 | |
| 600P6H1V0 | A c/6 orthogonal period 6 spaceship, found in January 2016. | 600p6h1v0.rle | 23/3 | 600 | 19x146 | |
| 60P13.1 | A period 13 oscillator that is a variant of 34P13.1. | 60p13.1.rle | 23/3 | 60 | 25x25 | |
| 60P33 | A reduced stabilization of Jason Summers' period-33 engine | 60p33.rle | 23/3 | 60 | 30x24 | |
| 60P3H1V0.3 | A period 3 orthogonal c/3 spaceship. | 60p3h1v0.3.rle | 23/3 | 60 | 33x8 | |
| 60P3H1V0.3 reactions | Various reactions involving orthogonal spaceships colliding into a | 60p3h1v0.3reactio... | 23/3 | 386 | 185x43 | |
| 60P3H1V0.3 interactions | Some reactions in which XWSSes collide into the back of a 60P3H1V0.3 | 60p3h1v03reaction... | 23/3 | 386 | 185x43 | |
| 60P5H2V0 | A period 5 2c/5 orthogonal spaceship found in 1996. | 60p5h2v0.rle | 23/3 | 60 | 19x11 | |
| 60P5H2V0_synth | Glider synthesis of 60P5H2V0. | 60p5h2v0_synth.rle | 23/3 | 315 | 179x173 | |
| 60P5H2V0 eater | Two eater 2s used to eat a 60P5H2V0. | 60p5h2v0eater.rle | 23/3 | 98 | 33x26 | |
| 64P13.1 | A period 13 oscillator that is a variant of 34P13.1. | 64p13.1.rle | 23/3 | 64 | 17x31 | |
| 64P13.2 | A period 13 oscillator that is a variant of 34P13.1. | 64p13.2.rle | 23/3 | 64 | 19x31 | |
| 64P2H1V0 | The smallest period 2 spaceship, discovered on July 28, 1989. Has speed c/2. | 64p2h1v0.rle | 23/3 | 64 | 31x8 | |
| 65P13.1 | The first period 13 oscillator to be found. Found in 1976. | 65p131.rle | 23/3 | 65 | 25x15 | |
| 65p131_synth | Glider synthesis of 65P13.3 | 65p131_synth.rle | 23/3 | 2058 | 1634x294 | |
| 65P48 | The smallest known period-48 oscillator, found 13 September 2014 | 65p48.rle | 23/3 | 65 | 21x16 | |
| 67P5H1V1 | The smallest known c/5 diagonal spaceship. Has period 5. Found in July 2006. | 67p5h1v1.rle | 23/3 | 67 | 22x20 | |
| 68p321 | 68p321.rle | 23/3 | 68 | 19x19 | ||
| 68p321_synth.rle | Glider synthesis of 68p32.1, March 27th, 2016 | 68p321_synth.rle | 23/3 | 120 | 103x79 | |
| 69P48 | The smallest known period 48 oscillator | 69p48.rle | 23/3 | 69 | 19x15 | |
| 6 bits | http://conwaylife.com/wiki/6_bits | 6bits.rle | 23/3 | 49 | 40x23 | |
| 6-engine Cordership | A c/12 period 96 diagonal Cordership discovered in July 1998 that uses 6 swit... | 6enginecordership... | 23/3 | 185 | 66x61 | |
| 6-engine Cordership_synth | Glider synthesis of 6-engine Cordership. | 6enginecordership... | 23/3 | 185 | 301x293 | |
| 6-engine Cordership gun | A true period 784 gun that fires copies of the 6-engine Cordership. | 6enginecordership... | 23/3 | 24976 | 1285x1065 | |
| 6-engine Cordership v2 | A six-engine Cordership. | 6enginecordership... | 23/3 | 265 | 77x74 | |
| 6-in-a-row Cordership | http://conwaylife.com/wiki/6-in-a-row_Cordership | 6inarowcordership... | 23/3 | 250 | 95x99 | |
| 6-in-a-row Cordership synth | 21-glider synthesis of the 6-in-a-row Cordership. | 6inarowcordership... | 23/3 | 105 | 171x175 | |
| 7-in-a-row-Cordership-V-gun | p726 V-gun for seven-engine-in-a-row Cordership: a 21-glider salvo | 7-in-a-row-Corder... | 23/3 | 32552 | 2325x2210 | |
| Spaghetti monster | http://conwaylife.com/wiki/Spaghetti_monster | 702p7h3v0.rle | 23/3 | 747 | 27x137 | |
| 70P2H1V0.1 | A c/2 orthogonal spaceship | 70p2h1v01.rle | 23/3 | 80 | 12x21 | |
| 70P5H2V0 | The first known 2c/5 spaceship that was not based on 44P5H2V0 | 70p5h2v0.rle | 23/3 | 70 | 18x16 | |
| 71P17.1 | A variant of the first period 17 oscillator to be found. | 71p171.rle | 23/3 | 71 | 18x14 | |
| 7242x1quadraticgrowth | quadratic growth in 7242x1 | 7242x1quadraticgr... | 23/3 | 1267 | 7242x1 | |
| 72P6H2V0 | The smallest known period-6 c/3 orthogonal spaceship. | 72p6h2v0.rle | 23/3 | 72 | 25x14 | |
| 7468M | A methuselah with lifespan 7468 found on February 20, 2005. | 7468m.rle | 23/3 | 8 | 6x4 | |
| 74P8H2V0 | The smallest known period-8 c/4 orthogonal spaceship. | 74p8h2v0.rle | 23/3 | 74 | 15x21 | |
| 77p4h1v01 | 77P4H1V0.1 | 77p4h1v01.rle | 23/3 | 81 | 21x15 | |
| 77P6H1V1 | The smallest known c/6 diagonal spaceship; found in March, 2011 | 77p6h1v1.rle | 23/3 | 77 | 36x36 | |
| 77p77 | The smallest known period 77 oscillator. | 77p77.rle | 23/3 | 77 | 16x21 | |
| 78P70 | A small non-trivial period 70 oscillator, discovered on | 78p70.rle | 23/3 | 78 | 31x25 | |
| 7-engine Cordership | A diagonal period 96 c/12 Cordership that uses 7 switch engines, found on Aug... | 7enginecordership... | 23/3 | 180 | 71x65 | |
| 7-engine Cordership reflections | A c/12 period 96 diagonal 7-engine Cordership being used to reflect | 7enginecordership... | 23/3 | 200 | 78x86 | |
| 7-in-a-row Cordership | A Cordership that uses 7 switch engines. Found no later than 1998. | 7inarowcordership... | 23/3 | 289 | 114x113 | |
| 7-in-a-row Cordership_synth | Glider synthesis of the 7-in-a-row Cordership. | 7inarowcordership... | 23/3 | 240 | 250x184 | |
| 7-in-a-row Cordership eater | An 895-cell still life and eater for the 7-in-a-row Cordership. | 7inarowcordership... | 23/3 | 1260 | 420x428 | |
| Lobster (spaceship) | http://conwaylife.com/wiki/Lobster_(spaceship) | 83p7h1v1.rle | 23/3 | 83 | 26x26 | |
| 84P87 | The smallest known period-87 oscillator. | 84p87.rle | 23/3 | 84 | 37x41 | |
| 86P5H1V1 | The second c/5 diagonal spaceship to be discovered | 86p5h1v1.rle | 23/3 | 86 | 23x23 | |
| 86P9H3V0 | A period 9 spaceship related to 117P9H3V0 | 86p9h3v0.rle | 23/3 | 86 | 37x13 | |
| 87p26 | The smallest known period 26 oscillator. | 87p26.rle | 23/3 | 87 | 17x16 | |
| 88P28 | A period 28 oscillator discovered on June 12, 2007 | 88p28.rle | 23/3 | 88 | 36x36 | |
| 8-engine Cordership | http://conwaylife.com/wiki/8-engine_Cordership | 8enginecordership... | 23/3 | 216 | 83x83 | |
| 92P33.1 | The smallest known period 33 oscillator as of April 2009. Found on | 92p331.rle | 23/3 | 92 | 34x30 | |
| 92p51 | The smallest known period 51 oscillator. | 92p51.rle | 23/3 | 92 | 24x23 | |
| 94P27.1 | The smallest known period 27 oscillator as of April 2009. Found in | 94p271.rle | 23/3 | 94 | 32x18 | |
| 98P25 | A period-25 oscillator | 98p25.rle | 23/3 | 98 | 38x23 | |
| 98P25_synth | A 71-glider synthesis of 98P25 | 98p25_synth.rle | 23/3 | 3037 | 200x360 | |
| B29withgliders.rle | http://www.conwaylife.com/wiki/B29 | B29withgliders.rle | 23/3 | 102 | 55x16 | |
| BTS | 19-bit still life that's used as a catalyst in non-Spartan Herschel conduits. | BTS.rle | 23/3 | 19 | 7x8 | |
| Cambrian-Explosion | XRLE Pos=-815,-550 | Cambrian-Explosio... | 23/3 | 54296 | 1028x672 | |
| Corder-lineship | Optimized version of Jason Summers' p96 c/12 diagonal lineship. | Corder-lineship.rle | 23/3 | 7178 | 675x653 | |
| Cordership-LWSS-freeze-tag | eight p384 c/12 forward rakes playing Freeze Tag with an LWSS | Cordership-LWSS-f... | 23/3 | 6698 | 642x598 | |
| Cordership-boat-burner | diagonal period 576 c/12 spaceship in which a glider consumes | Cordership-boat-b... | 23/3 | 3211 | 619x638 | |
| Cordership-gun-p784 | p784 six-engine Cordership gun: Dave Greene, 2 May 2003 | Cordership-gun-p7... | 23/3 | 24976 | 1285x1065 | |
| Stamp collection | A collection of 650 oscillators of 83 different periods from 1 | DRH-oscillators.rle | 23/3 | 64267 | 3145x396 | |
| H-to-C | XRLE Pos=-37,-19 | H-to-C.rle | 23/3 | 18570 | 1859x1919 | |
| H-to-S-5G | XRLE Pos=0,-1 | H-to-S-5G.rle | 23/3 | 113 | 106x96 | |
| Heisenburp | XRLE Pos=-612,-401 | Heisenburp.rle | 23/3 | 13410 | 2938x2598 | |
| LWSS-breeder | This is, to my knowledge, the first LWSS breeder created. It is a | LWSS-breeder.rle | 23/3 | 17352 | 1640x619 | |
| P1-pseudo-Heisenburp | XRLE Pos=-500,-290 | P1-pseudo-Heisenb... | 23/3 | 13410 | 2826x2487 | |
| Tetris Processor | https://codegolf.stackexchange.com/questions/11880/build-a-working-game-of-te... | TetrisOTCAMP.mc | B3/S23 | 29201023446 | 2940928x10407936 | |
| Turing-Machine-3-state | 3-state, 3-symbol Turing machine: Paul Rendell, 3 February 2000 | Turing-Machine-3-... | 23/3 | 36549 | 1714x1647 | |
| Unit-Life-Deep-Cell | Deep Cell by Jared James Prince. A slight modification of David | Unit-Life-Deep-Ce... | 23/3 | 5449 | 499x516 | |
| Achim's other p16 | http://conwaylife.com/wiki/Achim%27s_other_p16 | achimsotherp16.rle | 23/3 | 96 | 35x35 | |
| Achim's p11 | A period 11 oscillator discovered on August 4, 1994 | achimsp11.rle | 23/3 | 72 | 22x22 | |
| Achimsp11_synth | Glider synthesis of Achim's p11. | achimsp11_synth.rle | 23/3 | 1567 | 195x218 | |
| Achim's p144 | Period 144 oscillator found in 1994. | achimsp144.rle | 23/3 | 42 | 28x19 | |
| Achim's p144_synth | Glider syntheses of Achim's p144. | achimsp144_synth.rle | 23/3 | 239 | 106x109 | |
| Achim's p16 | A period 16 oscillator that was found in July 1994. | achimsp16.rle | 23/3 | 32 | 13x13 | |
| Achim's p16_synth | Incremental synthesis by Mark Niemiec and direct synthesis by Jason | achimsp16_synth.rle | 23/3 | 508 | 203x67 | |
| Achim's p4 | Period 4 oscillator found in 1988. | achimsp4.rle | 23/3 | 40 | 11x9 | |
| Achim's p4_synth | 7-glider synthesis based on a predecessor by Lewis Patterson | achimsp4_synth.rle | 23/3 | 381 | 116x95 | |
| Achim's p8 | Period 8 oscillator found in July 1994. | achimsp8.rle | 23/3 | 18 | 9x9 | |
| achimsp8_synth | Glider synthesis of Achim's p8 | achimsp8_synth.rle | 23/3 | 45 | 63x58 | |
| Acorn | A methuselah with lifespan 5206. | acorn.rle | 23/3 | 7 | 7x3 | |
| Acorn_synth | Glider synthesis of an acorn. | acorn_synth.rle | 23/3 | 35 | 42x7 | |
| adjustable-Corder-lineship | Adjustable-period growing/shrinking Corder-based c/12 lineship | adjustable-Corder... | 23/3 | 4620 | 894x809 | |
| advancer | p30 glider advancer #6, advances gliders by 60 generations. | advancer.rle | 23/3 | 329 | 135x144 | |
| A for all | A period 6 oscillator found in March 1993. | aforall.rle | 23/3 | 28 | 10x10 | |
| A for all_synth | Glider syntheses of a for alls. | aforall_synth.rle | 23/3 | 207 | 98x97 | |
| Aircraft carrier | A 6-cell still life that is the smallest still life with more than one island. | aircraftcarrier.rle | 23/3 | 6 | 4x3 | |
| Aircraft carrier_synth | Glider syntheses of aircraft carriers. | aircraftcarrier_s... | 23/3 | 235 | 146x90 | |
| Airforce | A period 7 oscillator in which the rotor consists of two copies of | airforce.rle | 23/3 | 42 | 14x15 | |
| AK47 reaction | A reaction in which a honey farm predecessor catalysed by an eater | ak47reaction.rle | 23/3 | 23 | 10x12 | |
| AK-94 | The smallest known true p94 gun, found in May 2013. | ak94.rle | 23/3 | 103 | 38x25 | |
| AK-94 synthesis | 60-glider synthesis of AK-94, finished in July 2013. | ak94_synth.rle | 23/3 | 300 | 186x207 | |
| Almost knightship | A pattern that is "almost" a period-6 knightship; only two cells | almostknightship.rle | 23/3 | 67 | 13x19 | |
| Almosymmetric | A period 2 oscillator found in 1971. | almosymmetric.rle | 23/3 | 17 | 9x8 | |
| Alternate eater 5 | An alternate form of eater 5 using a long hook with tail rather tha | alternateeater5.rle | 23/3 | 17 | 10x6 | |
| Alternate_PD_on_snacker | An alternate form of pentadecathlon on snacker, with a smaller boun | alternatepentadec... | 23/3 | 52 | 20x15 | |
| Alternate pi orbital | An alternate version of pi orbital using a period 12 sparker found | alternatepiorbita... | 23/3 | 275 | 63x61 | |
| Alternate wickstretcher 1 | A slightly smaller form of wickstretcher 1 | alternatewickstre... | 23/3 | 146 | 38x20 | |
| Amphisbaena | http://conwaylife.com/wiki/Amphisbaena | amphisbaena.rle | 23/3 | 11 | 7x5 | |
| amphisbaena_synth | Glider synthesis of amphisbaena | amphisbaena_synth... | 23/3 | 71 | 64x17 | |
| annotation-format-eater-salvos | Koenig annotation-format version of five-color MCell pattern | annotation-format... | 23/3 | 1599 | 645x399 | |
| anteater1 | c/4 diagonal anteater: Nicolay Beluchenko, 29 July 2005 | anteater1.rle | 23/3 | 608 | 173x97 | |
| anteater2 | c/4 double anteater: Nicolay Beluchenko, 29 July 2005 | anteater2.rle | 23/3 | 255 | 78x81 | |
| anteater3 | c/4 anteater-related spaceships: Nicolay Beluchenko, 29 July 2005 | anteater3.rle | 23/3 | 775 | 162x116 | |
| anteater4 | anteater-related double puffer: Nicolay Beluchenko, 29 July 2005 | anteater4.rle | 23/3 | 261 | 72x72 | |
| anteater5 | c/4 anteater connected to puffer: Nicolay Beluchenko, 29 July 2005 | anteater5.rle | 23/3 | 326 | 50x143 | |
| anteater6 | central glide-symmetric anteater element used as a tagalong | anteater6.rle | 23/3 | 452 | 174x51 | |
| anteater7 | alternate anteaters connected to sparking ships using glide- | anteater7.rle | 23/3 | 637 | 200x94 | |
| anteater8 | small anteater based on c/4 domino-spark ship | anteater8.rle | 23/3 | 137 | 24x62 | |
| Ants | An orthogonal period 5 lightspeed wick. | ants.rle | 23/3 | 72 | 44x4 | |
| Anvil | An induction coil. | anvil.rle | 23/3 | 13 | 7x4 | |
| Asymmetric pre-pulsar spaceship | An asymmetric version of the period 30 orthogonal c/5 pre-pulsar spaceship, i... | apps.rle | 23/3 | 128 | 69x15 | |
| Aries betwixt two blocks | The most common naturally-occurring 31-bit still life. | ariesbetwixttwobl... | 23/3 | 31 | 9x8 | |
| 31-1.rle | ariesbetwixttwobl... | 23/3 | 204 | 111x40 | ||
| ark1 | ark1.rle | 23/3 | 16 | 32x29 | ||
| ark2 | ark2.rle | 23/3 | 19 | 53x44 | ||
| aVerage | A period 5 oscillator in which the average number of live rotor cells is five... | average.rle | 23/3 | 42 | 13x11 | |
| B29 | A small c/4 diagonal spaceship with an isolated domino spark; disco | b29.rle | 23/3 | 29 | 8x16 | |
| B29_synth.rle | Original 54-glider synthesis found by Tanner Jacobi, 5 April 2015. | b29_synth.rle | 23/3 | 209 | 221x29 | |
| B29 with gliders | three ways in which gliders can non-trivially follow a B29 | b29withgliders.rle | 23/3 | 102 | 54x16 | |
| B3578/S238 replicator | A replicator in the B3578/S238 rule. | b3578s238replicat... | 238/3578 | 16 | 7x7 | |
| B-52 bomber | A true period 104 double-barrelled glider gun. It uses a B-heptomino and | b52bomber.rle | 23/3 | 85 | 39x21 | |
| Babbling brook 1 | A period 4 oscillator that was discovered in August 1997. It is the only know... | babblingbrook1.rle | 23/3 | 46 | 16x10 | |
| Backrake 1 | An orthogonal period 8 c/2 backrake. | backrake1.rle | 23/3 | 88 | 27x18 | |
| Backrake 2 | A period 12 orthogonal c/2 backrake. | backrake2.rle | 23/3 | 60 | 19x26 | |
| Backrake 3 | A pseudo period 32 (true period 64) orthogonal c/2 backrake based o | backrake3.rle | 23/3 | 124 | 33x103 | |
| Backward space rake | A simple orthogonal backward glider rake with period 20 and speed c | backwardspacerake... | 23/3 | 65 | 23x20 | |
| Baker | A diagonal period 4 lightspeed fuse. | baker.rle | 23/3 | 18 | 16x14 | |
| Baker's dozen | A period 12 oscillator that consists of a loaf hassled by two blocks and two ... | bakersdozen.rle | 23/3 | 45 | 23x11 | |
| Baker's dozen_synth | A 30-glider synthesis of baker's dozen | bakersdozen_synth... | 23/3 | 487 | 149x75 | |
| Bakery | A common 28-cell still life formation of two bi-loaves. | bakery.rle | 23/3 | 28 | 10x10 | |
| Bakery_synth | Glider synthesis of bakeries. | bakery_synth.rle | 23/3 | 518 | 151x104 | |
| Barge | A common 6-cell still life. | barge.rle | 23/3 | 6 | 4x4 | |
| Barge 2 (extended) | A c/2 period 2 orthogonal spaceship. | barge2extended.rle | 23/3 | 808 | 105x50 | |
| Barge 2 (spaceship) | A period 2 c/2 orthogonal extendable spaceship. | barge2spaceship.rle | 23/3 | 94 | 35x15 | |
| Barge_synth | Glider synthesis of barges. | barge_synth.rle | 23/3 | 231 | 147x86 | |
| Barge (extended) | A period 3 c/3 orthogonal spaceship. | bargeextended.rle | 23/3 | 1234 | 101x67 | |
| Barge (spaceship) | A period 3 c/3 orthogonal extendable spaceship. | bargespaceship.rle | 23/3 | 174 | 61x20 | |
| Barge with long tail | http://conwaylife.com/wiki/Barge_with_long_tail | bargewithlongtail... | 23/3 | 11 | 7x5 | |
| bargewithlongtail_synth | Glider synthesis of barge with long tail | bargewithlongtail... | 23/3 | 57 | 57x16 | |
| basic-rakes | Some common and typical c/2 rakes. | basic-rakes.rle | 23/3 | 372 | 263x79 | |
| Beacon | A common period 2 oscillator. | beacon.rle | 23/3 | 6 | 4x4 | |
| Beacon_synth | Glider synthesis of beacons. | beacon_synth.rle | 23/3 | 396 | 151x106 | |
| beacon and long hook_synth | A 6-glider synthesis of beacon and long hook | beaconandlonghook... | 23/3 | 44 | 27x22 | |
| Beacon and two tails | A period 2 oscillator. | beaconandtwotails... | 23/3 | 14 | 7x7 | |
| Beacon and two tails_synth | Glider synthesis of beacon and two tails. | beaconandtwotails... | 23/3 | 99 | 106x18 | |
| Beacon maker | A diagonal period 8 lightspeed fuse that creates beacons as its burns. | beaconmaker.rle | 23/3 | 19 | 16x15 | |
| Beacon on 38P11.1 | The smallest known period 22 oscillator, though it is usually considered triv... | beaconon38p11.1.rle | 23/3 | 40 | 12x14 | |
| Beacon on table tie eater | http://conwaylife.com/wiki/Beacon_on_table_tie_eater | beaconontabletiee... | 23/3 | 19 | 8x8 | |
| Bee hat | A 15-cell still life. | beehat.rle | 23/3 | 15 | 6x6 | |
| Bee hat_synth | A 4-glider synthesis of bee hat | beehat_synth.rle | 23/3 | 35 | 31x12 | |
| Beehive | An extremely common 6-cell still life. | beehive.rle | 23/3 | 6 | 4x3 | |
| Beehive_synth | Syntheses of beehives. | beehive_synth.rle | 23/3 | 153 | 156x60 | |
| Beehive and cap | The 14-cell still life. | beehiveandcap.rle | 23/3 | 14 | 5x7 | |
| Beehive and dock | A 16-cell still life. | beehiveanddock.rle | 23/3 | 16 | 6x7 | |
| Beehive and long hook eating tub | A period 3 oscillator. | beehiveandlonghoo... | 23/3 | 18 | 11x5 | |
| Beehive and long hook eating tub_synth | A 12-glider synthesis of beehive and long hook eating tub | beehiveandlonghoo... | 23/3 | 144 | 117x32 | |
| Beehive and table | A 12-cell still life. | beehiveandtable.rle | 23/3 | 12 | 5x6 | |
| beehive and table_synth | Glider syntheses of beehive and table | beehiveandtable_s... | 23/3 | 155 | 106x49 | |
| Beehive at beehive | A simple 12-cell still life composed of two beehive. | beehiveatbeehive.rle | 23/3 | 12 | 6x6 | |
| Beehive at beehive_synth | Glider syntheses of beehive at beehive. | beehiveatbeehive_... | 23/3 | 495 | 156x110 | |
| Beehive at loaf | A 13-cell still life. | beehiveatloaf.rle | 23/3 | 13 | 6x7 | |
| Beehive at loaf_synth | Glider synthesis of beehive at loaf. | beehiveatloaf_syn... | 23/3 | 48 | 40x20 | |
| Beehive bend tail | A 12-cell still life. | beehivebendtail.rle | 23/3 | 12 | 5x6 | |
| Beehive bend tail_synth | Glider syntheses of beehive bend tail | beehivebendtail_s... | 23/3 | 299 | 114x101 | |
| Beehive fuse | A diagonal 3c/32 period 128 fuse. | beehivefuse.rle | 23/3 | 39 | 30x32 | |
| Beehive test tube baby | http://conwaylife.com/wiki/Beehive_test_tube_baby | beehivetesttubeba... | 23/3 | 17 | 10x6 | |
| Beehive with nine | A 12-cell still life. | beehivewithnine.rle | 23/3 | 12 | 7x6 | |
| Beehive with nine_synth | Glider syntheses of beehive with nine | beehivewithnine_s... | 23/3 | 107 | 67x40 | |
| Beehive with tail | A 10-cell still life. | beehivewithtail.rle | 23/3 | 10 | 6x5 | |
| Beehive with tail_synth | Glider syntheses of beehive with tails. | beehivewithtail_s... | 23/3 | 166 | 77x76 | |
| Bent keys | A period 3 oscillator found in August 1989. | bentkeys.rle | 23/3 | 16 | 12x5 | |
| Bent keys_synth | A 10-glider synthesis of bent keys | bentkeys_synth.rle | 23/3 | 68 | 57x27 | |
| B-heptomino | A very common methuselah with lifespan 148 that often arises with the cell at... | bheptomino.rle | 23/3 | 7 | 4x3 | |
| B-heptomino_synth | Glider syntheses of B-heptominoes. | bheptomino_synth.rle | 23/3 | 269 | 147x79 | |
| Bi-block | An 8-cell pseudo still life. | biblock.rle | 23/3 | 8 | 5x2 | |
| Bi-block_synth | Glider syntheses of bi-blocks. | biblock_synth.rle | 23/3 | 184 | 105x92 | |
| Bi-boat | http://conwaylife.com/wiki/Bi-boat | biboat.rle | 23/3 | 10 | 7x3 | |
| Bi-cap | A 16-cell still life consisting of two caps. | bicap.rle | 23/3 | 16 | 4x7 | |
| Bi-cap_synth | Glider synthesis of bi-cap. | bicap_synth.rle | 23/3 | 61 | 63x48 | |
| Bi-clock | A pure glider generator made up of two clocks. | biclock.rle | 23/3 | 12 | 7x7 | |
| Big glider | The first known diagonal spaceship other than the glider. Has period 4 and sp... | bigglider.rle | 23/3 | 68 | 18x18 | |
| bigglidertagalongs | Tagalongs for one or more "big gliders". | bigglidertagalong... | 23/3 | 152 | 34x28 | |
| Big S | A 14-cell still life. | bigs.rle | 23/3 | 14 | 7x6 | |
| Big S_synth | Glider syntheses of big S. | bigs_synth.rle | 23/3 | 316 | 152x77 | |
| Bi-gun | A true period 46 double-barreled glider gun. | bigun.rle | 23/3 | 44 | 50x15 | |
| Bi-gun_synth | Glider synthesis of bi-gun. | bigun_synth.rle | 23/3 | 114 | 125x23 | |
| billiard-table | A "billiard table" oscillator is defined as any oscillator in | billiard-table.rle | 23/3 | 4865 | 347x222 | |
| Bi-loaf 1 | A 14-cell still life that makes up half of a bakery. | biloaf1.rle | 23/3 | 14 | 7x7 | |
| Bi-loaf 1_synth | Glider synthesis of bi-loaf 1s. | biloaf1_synth.rle | 23/3 | 352 | 149x91 | |
| Bi-loaf 2 | A 14-cell still life. | biloaf2.rle | 23/3 | 14 | 7x7 | |
| Bi-loaf 2_synth | Glider syntheses of bi-loaf 2s. | biloaf2_synth.rle | 23/3 | 236 | 152x46 | |
| Bi-loaf 3 | A small pure glider generator. | biloaf3.rle | 23/3 | 12 | 4x7 | |
| Bi-loaf 4 | A 14-cell still life. | biloaf4.rle | 23/3 | 14 | 6x6 | |
| biloaf4_synth | Glider synthesis of bi-loaf 4 | biloaf4_synth.rle | 23/3 | 20 | 10x10 | |
| Bipole | The barberpole of length 2 and thus a period 2 oscillator. | bipole.rle | 23/3 | 8 | 5x5 | |
| Bipole_synth | Glider synthesis of bipole. | bipole_synth.rle | 23/3 | 252 | 157x49 | |
| Bipole bridge pseudo-barberpole | A period 10 oscillator composed of a bipole and a pseudo-barberpole. The smal... | bipolebridgepseud... | 23/3 | 23 | 17x17 | |
| Bipole bridge pseudo-barberpole_synth | A 62-glider synthesis of bipole bridge pseudo-barberpole | bipolebridgepseud... | 23/3 | 767 | 152x196 | |
| Bipole on boat | http://conwaylife.com/wiki/Bipole_on_boat | bipoleonboat.rle | 23/3 | 13 | 8x8 | |
| Bi-pond | A 16-cell still life made up of two ponds. | bipond.rle | 23/3 | 16 | 7x7 | |
| Bi-pond_synth | Glider syntheses of bi-ponds. | bipond_synth.rle | 23/3 | 128 | 111x21 | |
| Birthday puffer | http://conwaylife.com/wiki/Birthday_puffer | birthdaypuffer.rle | 23/3 | 1620 | 354x403 | |
| Bistable switch | A logic circuit found in 1994 whilst searching for a stable reflect | bistableswitch.rle | 23/3 | 53 | 75x61 | |
| Biting off more than they can chew | A period 3 oscillator found in July 1972. | bitingoffmorethan... | 23/3 | 26 | 12x12 | |
| Biting off more than they can chew_synth | Glider synthesis of biting off more than they can chew. | bitingoffmorethan... | 23/3 | 502 | 122x108 | |
| Biting off more than they can chew extended | An extension of the period 3 oscillator "biting off more than they can chew". | bitingoffmorethan... | 23/3 | 30 | 16x15 | |
| Blinker | A period 2 oscillator that is the smallest and most common oscillator. | blinker.rle | 23/3 | 3 | 3x1 | |
| Blinker_synth | Glider syntheses of blinkers. | blinker_synth.rle | 23/3 | 181 | 150x75 | |
| Blinker fuse | An orthogonal 2c/3 period 18 fuse that burns cleanly through blinkers. | blinkerfuse.rle | 23/3 | 37 | 25x5 | |
| Blinker fuse 2 | An orthogonal 2c/3 period 6 blinker fuse. | blinkerfuse2.rle | 23/3 | 73 | 62x5 | |
| Blinker fuse 3 | An orthogonal 2c/3 period 6 blinker fuse. | blinkerfuse3.rle | 23/3 | 55 | 48x7 | |
| Blinker fuse (6c/13) | A 6c/13 orthogonal period 26 blinker fuse. | blinkerfuse6c13.rle | 23/3 | 38 | 62x3 | |
| Blinker fuse_synth | Glider synthesis of blinker fuse. | blinkerfuse_synth... | 23/3 | 40 | 39x11 | |
| Blinker puffer 1 | An orthogonal period 8 c/2 blinker puffer. The first blinker puffer to be found. | blinkerpuffer1.rle | 23/3 | 37 | 9x18 | |
| Blinker puffer 1_synth | Glider synthesis of Robert Wainwright's blinker puffer 1. | blinkerpuffer1_sy... | 23/3 | 89 | 79x53 | |
| Blinker puffer 2 | An orthogonal period 4 c/2 blinker puffer found in 1992. | blinkerpuffer2.rle | 23/3 | 79 | 17x25 | |
| Blinker (rotor) | http://conwaylife.com/wiki/Blinker_(rotor) | blinkerrotor.rle | 23/3 | 2 | 3x1 | |
| Blinkers bit pole | A period 2 oscillator found in June 1977. | blinkersbitpole.rle | 23/3 | 15 | 7x6 | |
| Blinker ship 1 | A blinker ship created by Paul Schick based on his Schick engine. | blinkership1.rle | 23/3 | 63 | 27x15 | |
| Block | An extremely common 4-cell still life. | block.rle | 23/3 | 4 | 2x2 | |
| Block_synth | Block glider synthesis. | block_synth.rle | 23/3 | 228 | 148x74 | |
| Blockade | A 16-cell still life made up of four blocks. | blockade.rle | 23/3 | 16 | 23x10 | |
| Blockade_synth | Glider syntheses of lumps of muck/blockade. | blockade_synth.rle | 23/3 | 301 | 134x96 | |
| Block and cap | A 12-cell still life. | blockandcap.rle | 23/3 | 12 | 4x6 | |
| Block and cap_synth | Glider syntheses of block and caps. | blockandcap_synth... | 23/3 | 249 | 107x113 | |
| Block and dock | A 14-cell still life made up of a block and a dock. | blockanddock.rle | 23/3 | 14 | 6x6 | |
| Block and dock_synth | Glider syntheses of block on docks. | blockanddock_synt... | 23/3 | 296 | 120x106 | |
| Block and glider | A methuselah with lifespan 106. | blockandglider.rle | 23/3 | 6 | 4x3 | |
| Block and two tails | A 12-cell still life. | blockandtwotails.rle | 23/3 | 12 | 5x5 | |
| Block and two tails_synth | Glider syntheses of block and two tails | blockandtwotails_... | 23/3 | 212 | 107x81 | |
| Blocked p4-1 | A period 4 oscillator. | blockedp41.rle | 23/3 | 75 | 23x14 | |
| Blocked p4-2 | A period 4 oscillator. | blockedp42.rle | 23/3 | 48 | 22x8 | |
| Blocked p4-3 | A period 4 oscillator. | blockedp43.rle | 23/3 | 48 | 21x9 | |
| Blocked p4-4 | A sparking period 4 oscillator found by Matthias Merzenich in April 2010. | blockedp44.rle | 23/3 | 42 | 19x9 | |
| Blocked p4-5 | A sparking period 4 oscillator found by Matthias Merzenich in April 2010. | blockedp45.rle | 23/3 | 51 | 18x12 | |
| Blocked p4 t-nose | A period 4 oscillator. | blockedp4tnose.rle | 23/3 | 63 | 25x13 | |
| Blocked p4 t-nose hybrid | A sparking period 4 oscillator found by Matthias Merzenich in April 2010. | blockedp4tnosehyb... | 23/3 | 53 | 21x13 | |
| Blocker | A period 8 oscillator. | blocker.rle | 23/3 | 15 | 10x5 | |
| Blocker_synth | Glider synthesis of blocker. | blocker_synth.rle | 23/3 | 424 | 157x80 | |
| blockish-and-blockic-seeds | Upper left: Blockic 10-glider seed for a p256 oscillator -- | blockish-and-bloc... | 23/3 | 3111 | 691x391 | |
| Block-laying switch engine | A diagonal period 288 c/12 block-laying puffer. | blocklayingswitch... | 23/3 | 43 | 29x28 | |
| Block-laying switch engine_synth | Glider synthesis for a block-laying switch engine. | blocklayingswitch... | 23/3 | 147 | 141x85 | |
| Block-laying switch engine predecessor | A simple 12-cell pattern that evolves into the diagonal period 288 c/12 block... | blocklayingswitch... | 23/3 | 12 | 16x4 | |
| Block on boat | A 9-cell pseudo still life. | blockonboat.rle | 23/3 | 9 | 6x3 | |
| Block on boat_synth | Glider synthesis of block on boats. | blockonboat_synth... | 23/3 | 182 | 144x94 | |
| Block on table | A simple 10-cell still life. | blockontable.rle | 23/3 | 10 | 4x5 | |
| Block on table_synth | Glider syntheses of block on table. | blockontable_synt... | 23/3 | 140 | 109x51 | |
| Blockstacker | A pattern that creates an infinite row of blocks. Created on August | blockstacker.rle | 23/3 | 8117 | 531x915 | |
| Blom | A methuselah with lifespan 23314 found in July 2002. | blom.rle | 23/3 | 13 | 12x5 | |
| Blonker | http://conwaylife.com/wiki/Blonker | blonker.rle | 23/3 | 20 | 12x8 | |
| blonker_synth | Glider synthesis of blonker | blonker_synth.rle | 23/3 | 90 | 42x32 | |
| Boat | The only 5-cell still life. | boat.rle | 23/3 | 5 | 3x3 | |
| Boat_synth | Glider syntheses of boats. | boat_synth.rle | 23/3 | 285 | 152x105 | |
| Boat-bit | A reaction that shows how boats (along with a snake or aircraft car | boatbit.rle | 23/3 | 26 | 25x24 | |
| Boat maker | A diagonal period 4 lightspeed fuse that makes boats as it burns. | boatmaker.rle | 23/3 | 23 | 18x17 | |
| Boat on aircraft | http://conwaylife.com/wiki/Boat_on_aircraft | boatonaircraft.rle | 23/3 | 11 | 6x7 | |
| boatonaircraft_synth | Glider synthesis of Boat on aircraft | boatonaircraft_sy... | 23/3 | 36 | 44x45 | |
| Boat on quadpole | A period 2 oscillator. | boatonquadpole.rle | 23/3 | 15 | 10x10 | |
| Boat on quadpole_synth | Glider syntheses of boat on quadpole | boatonquadpole_sy... | 23/3 | 373 | 121x109 | |
| Boat on snake | http://conwaylife.com/wiki/Boat_on_snake | boatonsnake.rle | 23/3 | 11 | 7x5 | |
| Boat on spark coil | A period 2 oscillator. | boatonsparkcoil.rle | 23/3 | 23 | 8x11 | |
| Boat on spark coil_synth | Glider syntheses of boat on spark coil | boatonsparkcoil_s... | 23/3 | 241 | 73x87 | |
| Boat-ship-tie | An 11-cell still life made up of a ship and a boat. | boatshiptie.rle | 23/3 | 11 | 6x6 | |
| Boat-ship-tie_synth | Glider syntheses of boat-ship-ties. | boatshiptie_synth... | 23/3 | 418 | 143x112 | |
| Boatstretcher 1 | The first diagonal wickstretcher to be found | boatstretcher1.rle | 23/3 | 77 | 21x21 | |
| Boat test tube baby | http://conwaylife.com/wiki/Boat_test_tube_baby | boattesttubebaby.rle | 23/3 | 18 | 10x6 | |
| Boat-tie | A 10-cell still life. | boattie.rle | 23/3 | 10 | 6x6 | |
| Boat-tie_synth | Glider syntheses of boat-ties. | boattie_synth.rle | 23/3 | 338 | 153x86 | |
| Boat with hooked tail | http://conwaylife.com/wiki/Boat_with_hooked_tail | boatwithhookedtai... | 23/3 | 11 | 6x4 | |
| Boat with long tail | A 10-cell still life. | boatwithlongtail.rle | 23/3 | 10 | 6x4 | |
| Boat with long tail_synth | Glider synthesis of boat with long tail. | boatwithlongtail_... | 23/3 | 75 | 68x23 | |
| Boat with very long tail | http://conwaylife.com/wiki/Boat_with_very_long_tail | boatwithverylongt... | 23/3 | 11 | 7x4 | |
| bobsledrun2 | revised switch-engine 'bobsled run' using boats as catalysts | bobsledrun2.rle | 23/3 | 943 | 216x232 | |
| Bomber predecessor | A predecessor of the bomber spaceship in the HighLife rule. | bomberpredecessor... | 23/36 | 9 | 10x6 | |
| Boojum reflector | The smallest known stable reflector (as of January 2009). | boojumreflector.rle | 23/3 | 65 | 44x32 | |
| Bookend | An induction coil. | bookend.rle | 23/3 | 7 | 4x3 | |
| Bookend_synth | Glider synthesis of bookend. | bookend_synth.rle | 23/3 | 261 | 118x77 | |
| Bookends | A 14-cell still life. | bookends.rle | 23/3 | 14 | 7x4 | |
| Bookends_synth | Glider syntheses of bookends. | bookends_synth.rle | 23/3 | 326 | 126x91 | |
| Boring p24 | http://conwaylife.com/wiki/Boring_p24 | boringp24.rle | 23/3 | 82 | 26x18 | |
| Boss | A period 4 oscillator. | boss.rle | 23/3 | 42 | 11x14 | |
| Bottle | A period 8 oscillator. | bottle.rle | 23/3 | 80 | 18x18 | |
| Brain | An orthogonal period 3 c/3 spaceship. | brain.rle | 23/3 | 70 | 17x11 | |
| Brain perturbing glider | http://www.conwaylife.com/wiki/Brain | brainperturbinggl... | 23/3 | 75 | 22x14 | |
| Breeder 1 | The first pattern to be found that exhibits quadratic growth. Found | breeder1.rle | 23/3 | 4060 | 749x338 | |
| Bricklayer | A pattern found on September 29, 2002. | bricklayer.rle | 23/3 | 968 | 141x88 | |
| broken-lines.mc | Broken lines pattern - does it work forever? | broken-lines.mc | 1766 | 227x118 | ||
| brokenlife | XRLE Pos=0,0 | brokenlife.rle | 23/3 | 1766 | 227x118 | |
| Broken lines | www.conwaylife.com/wiki/Broken_lines | brokenlines.rle | 23/3 | 1766 | 227x118 | |
| Buckaroo | A period 30 oscillator based on the queen bee shuttle. | buckaroo.rle | 23/3 | 23 | 23x9 | |
| Buckaroo_synth | Glider synthesis of buckaroo. | buckaroo_synth.rle | 23/3 | 133 | 107x45 | |
| Bullet heptomino | Generation 1 of the T-tetromino. | bulletheptomino.rle | 23/3 | 7 | 3x3 | |
| Bumper | A small, color-preserving 90° glider reflector with a repeat time of 34. | bumper.rle | 23/3 | 32 | 21x9 | |
| Bun | An induction coil that is a common predecessor of the honey farm. | bun.rle | 23/3 | 7 | 4x3 | |
| Bunnies | A methuselah and parent of rabbits with lifespan 17332. | bunnies.rle | 23/3 | 9 | 8x4 | |
| Bunnies 10 | A methuselah with lifespan 17423 that evolves similarly to bunnies | bunnies10.rle | 23/3 | 10 | 6x6 | |
| Bunnies 11 | A methuselah with lifespan 17465 that evolves similarly to bunnies | bunnies11.rle | 23/3 | 11 | 6x4 | |
| Bunnies 9 | A methuselah with lifespan 17410 that evolves similarly to bunnies | bunnies9.rle | 23/3 | 9 | 8x7 | |
| Bunnies_synth | Glider synthesis of bunnies. | bunnies_synth.rle | 23/3 | 44 | 48x13 | |
| Burloaferimeter | A period 7 oscillator. | burloaferimeter.rle | 23/3 | 28 | 10x11 | |
| Burloaferimeter_synth | Glider synthesis of burloaferimeter. | burloaferimeter_s... | 23/3 | 363 | 158x41 | |
| Butterfly | Evolves into a formation of two beehives after | butterfly.rle | 23/3 | 8 | 4x4 | |
| Butterfly_synth | Glider synthesis of butterflies. | butterfly_synth.rle | 23/3 | 253 | 151x75 | |
| By flops | A period 2 oscillator. | byflops.rle | 23/3 | 13 | 6x7 | |
| By flops_synth | Glider synthesis of by flops. | byflops_synth.rle | 23/3 | 513 | 156x92 | |
| c2-Cordership-rake | p240 c/2 orthogonal rake for Paul Tooke's 3-engine Cordership | c2-Cordership-rak... | 23/3 | 3685 | 461x424 | |
| c/2 wickstretcher | A c/2 orthogonal wickstretcher that stretches a period 6 wick | c2wickstretcher.rle | 23/3 | 382 | 43x61 | |
| c3-forward-rake-p333 | Engineless c/3 p333 forward rake | c3-forward-rake-p... | 23/3 | 13993 | 2089x1527 | |
| c3-orthogonal | All known c/3 ships up to 50 bits. | c3-orthogonal.rle | 23/3 | 9174 | 799x462 | |
| c/3 greyship | A c/3 orthogonal greyship using several methods of stabilization, | c3greyship.rle | 23/3 | 11689 | 296x131 | |
| c/3 ladder | A naturally-occurring c/3 ladder in the Life without death rule. | c3ladder.rle | 012345678/3 | 20 | 5x8 | |
| c/3 ladders | Some uncommon c/3 ladders in Life without death. | c3ladders.rle | 012345678/3 | 1153 | 14x213 | |
| c/3 puffer #1 | The first c/3 orthogonal puffer, discovered in April 1996 | c3puffer1.rle | 23/3 | 413 | 87x38 | |
| c4-diag-switch-engines | c/4 diagonal switch-engine breeder | c4-diag-switch-en... | 23/3 | 878 | 152x94 | |
| c4-diagonal-puffer | Highly non-optimized dirty c/4 diagonal puffer (p4284). | c4-diagonal-puffe... | 23/3 | 2422 | 897x897 | |
| c4-diagonal | Most known c/4 diagonal spaceships up to 70 bits. | c4-diagonal.rle | 23/3 | 34096 | 1386x765 | |
| c4-orthogonal | All known c/4 orthogonal ships up to 70 bits. | c4-orthogonal.rle | 23/3 | 20479 | 1696x652 | |
| c4-sideways-rake | p4508+32N c/4 adjustable-period sideways glider rake. | c4-sideways-rake.rle | 23/3 | 15908 | 3285x3306 | |
| c/4 diagonal puffer 1 | The first known c/4 diagonal puffer; found on February 9, 2004 | c4diagonalpuffer1... | 23/3 | 248 | 84x60 | |
| c/4 diagonal spaceships | A small selection of c/4 period 4 diagonal spaceships. | c4diagonalspacesh... | 23/3 | 5775 | 392x267 | |
| c4greyship | sample c/4 greyship | c4greyship.rle | 23/3 | 5769 | 177x183 | |
| c/4 orthogonal spaceships | A small selection of c/4 period 4 orthogonal spaceships. | c4orthogonalspace... | 23/3 | 6773 | 311x267 | |
| C/4 wave | http://conwaylife.com/wiki/C/4_wave | c4wave.rle | 23/3 | 281 | 120x45 | |
| c5-adjustable-rake | Adjustable period 165+5N c/5 rake | c5-adjustable-rak... | 23/3 | 7334 | 2468x910 | |
| c/5 diagonal puffer 1 | The first c/5 diagonal puffer, discovered on September 5, 2010 | c5diagonalpuffer1... | 23/3 | 257 | 85x71 | |
| c/5 diagonal tubstretcher | A c/5 diagonal wickstretcher | c5diagonaltubstre... | 23/3 | 242 | 55x55 | |
| c/5 greyship | A c/5 orthogonal greyship discovered in March 2010 | c5greyship.rle | 23/3 | 8056 | 286x199 | |
| c/9 reaction | http://conwaylife.com/wiki/C/9_reaction | c9reaction.rle | 23/3 | 8 | 9x4 | |
| Caber tosser 1 | A smaller version of the first caber tosser found. Uses a 7-engine | cabertosser1.rle | 23/3 | 303 | 145x114 | |
| Canada goose | A c/4 period 4 spaceship. At the time of its discovery, the Canada goose was ... | canadagoose.rle | 23/3 | 36 | 13x12 | |
| Candelabra | A period 3 oscillator. | candelabra.rle | 23/3 | 28 | 16x6 | |
| Candlefrobra | A period 3 oscillator found in November 1984. | candlefrobra.rle | 23/3 | 16 | 10x5 | |
| Candlefrobra_synth | A 12-glider synthesis of candlefrobra | candlefrobra_synt... | 23/3 | 187 | 117x56 | |
| Canoe | An 8-cell still life. | canoe.rle | 23/3 | 8 | 5x5 | |
| Canoe_synth | Glider syntheses of canoes. | canoe_synth.rle | 23/3 | 56 | 73x21 | |
| Cap | An induction coil. | cap.rle | 23/3 | 8 | 4x3 | |
| Cap and dock | http://conwaylife.com/wiki/Cap_and_dock | capanddock.rle | 23/3 | 18 | 7x6 | |
| Carnival shuttle | A period 12 oscillator. | carnivalshuttle.rle | 23/3 | 58 | 38x7 | |
| Carrier siamese carrier | A 10-cell still life composed of two aircraft carriers attached together. | carriersiamesecar... | 23/3 | 10 | 7x4 | |
| Carrier siamese carrier_synth | Glider synthesis of carrier siamese carrier. | carriersiamesecar... | 23/3 | 207 | 89x83 | |
| Carrier siamese snake | A 10-cell still life composed of an aircraft carrier and a snake attached tog... | carriersiamesesna... | 23/3 | 10 | 7x3 | |
| Carrier siamese snake_synth | Glider synthesis of carrier siamese snake. | carriersiamesesna... | 23/3 | 282 | 151x92 | |
| Carrier with feather | http://conwaylife.com/wiki/Carrier_with_feather | carrierwithfeathe... | 23/3 | 11 | 7x4 | |
| catacryst.mc | catacryst -- a 58-cell quadratic growth pattern | catacryst.mc | 58 | 2555x1772 | ||
| Catacryst | A 58-cell quadratic growth pattern. | catacryst.rle | 23/3 | 58 | 2555x1772 | |
| Caterer | A period 3 oscillator. | caterer.rle | 23/3 | 12 | 8x6 | |
| Caterer_synth | Glider synthesis of caterer. | caterer_synth.rle | 23/3 | 338 | 149x93 | |
| Caterer on 34P13 | A small period 39 oscillator | catereron34p13.rle | 23/3 | 46 | 23x16 | |
| Caterer on 36P22 | A small non-trivial period 66 oscillator | catereron36p22.rle | 23/3 | 48 | 33x13 | |
| Caterer on 42P7.1 | The smallest known period-21 oscillator, non-trivial because | catereron42p7.1.rle | 23/3 | 54 | 17x14 | |
| Caterer on 44P7.2 | A small period 21 oscillator | catereron44p7.2.rle | 23/3 | 56 | 19x16 | |
| Caterer on 48P31 | The smallest known period-93 oscillator. | catereron48p31.rle | 23/3 | 60 | 24x27 | |
| Caterer on 68P32 | The smallest known period-96 oscillator. | catereron68p32.rle | 23/3 | 80 | 29x23 | |
| Caterer on figure eight | The smallest known period 24 oscillator. | catereronfigureei... | 23/3 | 24 | 18x6 | |
| Caterer on rattlesnake | The smallest known period-33 oscillator. | catereronrattlesn... | 23/3 | 46 | 13x20 | |
| Caterpillar | http://conwaylife.com/wiki/Caterpillar | caterpillar.mc | B3/S23 | 11967399 | 4195x330721 | |
| caterpillar | 17c/45 Caterpillar spaceship. | caterpillar.rle | 11967399 | 4195x330721 | ||
| Cauldron | A period 8 oscillator found in 1971. | cauldron.rle | 23/3 | 32 | 11x13 | |
| Cauldron_synth | Glider synthesis of cauldron. | cauldron_synth.rle | 23/3 | 597 | 160x103 | |
| Centinal | A period 100 oscillator based on the p54 shuttle and the twin bees shuttle. | centinal.rle | 23/3 | 70 | 52x17 | |
| Centinal_synth | Glider synthesis of centinal. | centinal_synth.rle | 23/3 | 234 | 112x104 | |
| Centinal reflector | Centinal about to reflect a glider 90 degrees | centinalreflector... | 23/3 | 111 | 52x22 | |
| Centipede | http://conwaylife.com/wiki/Centipede | centipede.mc | B3/S23 | 620901 | 11656x126728 | |
| Century | A methuselah with lifespan 103. | century.rle | 23/3 | 6 | 4x3 | |
| Century eater | An eater for century (or equivalently, bookend) made up of three eater 1s sur... | centuryeater.rle | 23/3 | 33 | 21x21 | |
| centuryeater2.rle | http://conwaylife.com/forums/viewtopic.php?p=8177#p8177 | centuryeater2.rle | 23/3 | 52 | 52x42 | |
| Cha cha | http://conwaylife.com/wiki/Cha_cha | chacha.rle | 23/3 | 16 | 8x6 | |
| 16chacha.rle | chacha_synth.rle | 23/3 | 183 | 129x46 | ||
| Champage glass | The smallest known non-trivial period 22 oscillator. | champageglass.rle | 23/3 | 45 | 15x12 | |
| Champagne glass | A period 22 oscillator found in the mid-1990s. | champagneglass.rle | 23/3 | 45 | 15x12 | |
| chase-the-glider | A pattern which "chases the glider". | chase-the-glider.rle | 23/3 | 16237 | 1717x1627 | |
| Chemist | A period 5 oscillator. | chemist.rle | 23/3 | 48 | 15x13 | |
| C-heptomino | A methuselah with lifespan 148 that evolves in the same way as the B-heptomin... | cheptomino.rle | 23/3 | 7 | 4x3 | |
| Cheshire cat | A block predecessor. | cheshirecat.rle | 23/3 | 18 | 6x6 | |
| Chicken wire | A simple stable agar. | chickenwire.rle | 23/3 | 720 | 36x40 | |
| Circle of fire | http://conwaylife.com/wiki/Circle_of_fire | circleoffire.rle | 23/3 | 42 | 11x11 | |
| Cis-barge with tail | A 10-cell still life. | cisbargewithtail.rle | 23/3 | 10 | 6x5 | |
| Cis-barge with tail_synth | Glider synthesis of cis-barge with tail. | cisbargewithtail_... | 23/3 | 92 | 77x52 | |
| Cis-beacon and anvil | A period 2 oscillator. | cisbeaconandanvil... | 23/3 | 19 | 7x9 | |
| Cis-beacon and cap | A period 2 oscillator. | cisbeaconandcap.rle | 23/3 | 14 | 4x8 | |
| Cis-beacon and cap_synth | Glider synthesis of cis-beacon and cap. | cisbeaconandcap_s... | 23/3 | 78 | 106x12 | |
| Cis-beacon and dock | A period 2 oscillator. | cisbeaconanddock.rle | 23/3 | 16 | 6x8 | |
| Cis-beacon and dock_synth | Glider syntheses of cis-beacon and dock | cisbeaconanddock_... | 23/3 | 217 | 108x58 | |
| Cis-beacon and table | A period 2 oscillator. | cisbeaconandtable... | 23/3 | 12 | 4x7 | |
| Cis-beacon and table_synth | Glider synthesis of cis-beacon and table. | cisbeaconandtable... | 23/3 | 170 | 107x49 | |
| Cis-beacon up and long hook | A period 2 oscillator composed of a beacon and a long hook. | cisbeaconupandlon... | 23/3 | 14 | 5x8 | |
| beacon and long hook_synth | A 6-glider synthesis of beacon and long hook | cisbeaconupandlon... | 23/3 | 44 | 27x22 | |
| Cis-block and long hook | A 12-cell still life. | cisblockandlongho... | 23/3 | 12 | 5x6 | |
| Cis-block and long hook_synth | Glider syntheses of Cis-block and long hook | cisblockandlongho... | 23/3 | 260 | 145x87 | |
| Cis-boat and dock | A 15-cell still life. | cisboatanddock.rle | 23/3 | 15 | 6x7 | |
| Cis-boat and dock_synth | Glider syntheses of cis-boat and docks. | cisboatanddock_sy... | 23/3 | 292 | 115x101 | |
| Cis-boat and long hook eating tub | A period 3 oscillator. | cisboatandlonghoo... | 23/3 | 17 | 11x5 | |
| Cis-boat and long hook eating tub_synth | A 13-glider synthesis of cis-boat and long hook eating tub | cisboatandlonghoo... | 23/3 | 160 | 147x20 | |
| Cis-boat and table | An 11-cell still life consisting of a boat on a table. It is the 81st most co... | cisboatandtable.rle | 23/3 | 11 | 4x6 | |
| Cis-boat and table_synth | Glider syntheses of cis-boat and table | cisboatandtable_s... | 23/3 | 178 | 104x123 | |
| Cis-boat with nine | http://conwaylife.com/wiki/Cis-boat_with_nine | cisboatwithnine.rle | 23/3 | 11 | 6x6 | |
| Cis-boat with tail | A 9-cell still life. | cisboatwithtail.rle | 23/3 | 9 | 5x5 | |
| Cis-boat with tail_synth | Glider syntheses of trans-boat with tails. | cisboatwithtail_s... | 23/3 | 92 | 65x36 | |
| Cis-fuse with two tails | A simple 12-cell still life. | cisfusewithtwotai... | 23/3 | 12 | 6x6 | |
| Cis-fuse with two tails_synth | Glider syntheses of Cis-fuse with two tails | cisfusewithtwotai... | 23/3 | 446 | 127x116 | |
| Cis-hook and R-bee | A 14-cell still life composed of a bookend and a bun. | cishookandrbee.rle | 23/3 | 14 | 4x7 | |
| Cis-hook with tail | A 10-cell still life similar to the long long hook with tail. | cishookwithtail.rle | 23/3 | 10 | 5x6 | |
| Cis-hook with tail_synth | Glider synthesis of cis-hook with tail. | cishookwithtail_s... | 23/3 | 462 | 146x110 | |
| Cis-loaf with tail | An 11-cell still life. | cisloafwithtail.rle | 23/3 | 11 | 6x5 | |
| Cis-loaf with tail_synth | Glider syntheses of cis-loaf with tails. | cisloafwithtail_s... | 23/3 | 128 | 66x66 | |
| Cis-long boat with tail | http://conwaylife.com/wiki/Cis-long_boat_with_tail | cislongboatwithta... | 23/3 | 11 | 6x5 | |
| Cis-mirrored professor | A 46-bit natural still life. | cismirroredprofes... | 23/3 | 46 | 9x11 | |
| cismirroredprofessor_synth | Glider synthesis of the cis-mirrored professor. | cismirroredprofes... | 23/3 | 155 | 131x53 | |
| Cis-mirrored R-bee | A 14-cell still life made up of two buns facing each other. | cismirroredrbee.rle | 23/3 | 14 | 7x4 | |
| Cis-mirrored R-bee_synth | Glider syntheses of cis-mirrored R-bees. | cismirroredrbee_s... | 23/3 | 173 | 95x46 | |
| Cis-mirrored worm | http://conwaylife.com/wiki/Cis-mirrored_worm | cismirroredworm.rle | 23/3 | 22 | 6x9 | |
| Cis-mirrored worm siamese cis-mirrored worm | http://conwaylife.com/wiki/Cis-mirrored_worm_siamese_cis-mirrored_worm | cismirroredwormsi... | 23/3 | 40 | 11x9 | |
| Cis-R-bee and R-loaf | A 15-cell still life. | cisrbeeandrloaf.rle | 23/3 | 15 | 4x8 | |
| Cis-rotated hook | http://conwaylife.com/wiki/Cis-rotated_hook | cisrotatedhook.rle | 23/3 | 14 | 7x5 | |
| Cis-rotated R-bee | A 14-cell still life composed of two buns. | cisrotatedrbee.rle | 23/3 | 14 | 7x5 | |
| Cis-shillelagh | A 10-cell still life similar to the long long shillelagh. | cisshillelagh.rle | 23/3 | 10 | 6x5 | |
| Cis-shillelagh_synth | Glider syntheses of Cis-shillelagh | cisshillelagh_syn... | 23/3 | 207 | 95x133 | |
| Claw | http://conwaylife.com/wiki/Claw | claw.rle | 23/3 | 6 | 4x3 | |
| Claw test tube baby | http://conwaylife.com/wiki/Claw_test_tube_baby | clawtesttubebaby.rle | 23/3 | 20 | 12x6 | |
| Claw with tail | A 10-cell still life similar to hook with tail. | clawwithtail.rle | 23/3 | 10 | 6x5 | |
| Claw with tail_synth | Glider syntheses of claw with tail. | clawwithtail_synt... | 23/3 | 254 | 106x98 | |
| Claw with tub with tail | http://conwaylife.com/wiki/Claw_with_tub_with_tail | clawwithtubwithta... | 23/3 | 11 | 6x7 | |
| Clips | The most common naturally-occurring 30-bit still life. | clips.rle | 23/3 | 30 | 9x7 | |
| 30clips.rle | clips_synth.rle | 23/3 | 437 | 150x115 | ||
| Clock | A period 2 oscillator that was found in May 1970. This is the fifth or sixth ... | clock.rle | 23/3 | 6 | 4x4 | |
| Clock 2 | A period 4 oscillator. | clock2.rle | 23/3 | 35 | 12x12 | |
| clock2_synth | Glider synthesis of Clock 2 | clock2_synth.rle | 23/3 | 2423 | 1456x578 | |
| Clock_synth | Glider syntheses of clocks. | clock_synth.rle | 23/3 | 428 | 145x108 | |
| Cloverleaf interchange | http://conwaylife.com/wiki/Cloverleaf_interchange | cloverleafinterch... | 23/3 | 56 | 13x13 | |
| Coe ship | An orthogonal period 16 c/2 spaceship discovered in October 1995 that can act... | coeship.rle | 23/3 | 28 | 10x9 | |
| Coe ship_synth | Glider synthesis of Coe ship. | coeship_synth.rle | 23/3 | 288 | 109x154 | |
| Coe's p8 | A period 8 oscillator found in August 1997. | coesp8.rle | 23/3 | 17 | 12x6 | |
| Coe's p8_synth | 8-glider synthesis by 'Extrementhusiast' with Lewis Patterson | coesp8_synth.rle | 23/3 | 154 | 63x88 | |
| Coe's p8_synth | 8-glider synthesis by 'Extrementhusiast' with Lewis Patterson | coesp8_synth_8and... | 23/3 | 154 | 63x88 | |
| Conduit 1 | A conduit that transforms a B-heptomino into a Herschel after 59 generations. | conduit1.rle | 23/3 | 10 | 11x5 | |
| Confused eaters | A period 4 oscillator found no later than 1972. | confusedeaters.rle | 23/3 | 20 | 11x11 | |
| Confused eaters_synth | Glider synthesis of confused eaters. | confusedeaters_sy... | 23/3 | 363 | 131x104 | |
| constructor-memory-loop | XRLE Pos=-30130,-1144 | constructor-memor... | 23/3 | 12947 | 31473x31101 | |
| constructor-memory-tape | Prototype programmable constructor reads a construction | constructor-memor... | 23/3 | 13322 | 4235x2765 | |
| Coolout Conjecture | A counterexample disproving the Coolout Conjecture, found by Richard Schroepp... | cooloutconjecture... | 23/3 | 8 | 6x2 | |
| Copperhead | An c/10 orthogonal spaceship found on March 5, 2016. | copperhead.rle | 23/3 | 28 | 8x12 | |
| copperhead_synth.rle | 22-glider synthesis of copperhead spaceship found by Chris Cain on | copperhead_synth.rle | 23/3 | 110 | 54x48 | |
| copperhead_synth.rle | Copperhead synthesis from 14 gliders | copperhead_synth_... | 23/3 | 64 | 48x37 | |
| copperhead_synth.rle | 22-glider synthesis of copperhead spaceship found by Chris Cain on | copperhead_synth_... | 23/3 | 110 | 54x48 | |
| corderships | Five small Corderships. | corderships.rle | 23/3 | 1207 | 244x255 | |
| Cord puller | A sawtooth with expansion factor 6 that was found on May 14, 1991. | cordpuller.rle | 23/3 | 434 | 98x93 | |
| Cousin prime calculator | A cousin prime calculator, created on July 29, 2009. Based on Dean | cousinprimecalcul... | 23/3 | 3601 | 439x296 | |
| Cousins | A period 3 oscillator that contains two copies of the stillater rotor. | cousins.rle | 23/3 | 32 | 13x7 | |
| Cover | An 8-bit induction coil | cover.rle | 23/3 | 8 | 5x5 | |
| Cow | An orthogonal speed c period 8 fuse. | cow.rle | 23/3 | 112 | 40x7 | |
| Crab | The smallest known diagonal spaceship other than the glider. Period 4 with sp... | crab.rle | 23/3 | 25 | 13x12 | |
| Crab synthesis | Original synthesis by Martin Grant, 26 December 2014 | crab_synth.rle | 23/3 | 130 | 106x35 | |
| Crab tubstretcher | A small tubstretcher based on the crab. | crabtubstretcher.rle | 23/3 | 29 | 13x15 | |
| Crane | A c/4 diagonal spaceship found in September 2005 | crane.rle | 23/3 | 59 | 27x19 | |
| Cross | A period 3 oscillator found in October 1989. | cross.rle | 23/3 | 28 | 8x8 | |
| Cross 2 | The second smallest member of the infinite family of period 3 cross | cross2.rle | 23/3 | 60 | 15x15 | |
| cross_synth | A 16-glider synthesis of the cross | cross_synth.rle | 23/3 | 108 | 46x32 | |
| Crowd | A period 3 oscillator found in January 1973. | crowd.rle | 23/3 | 46 | 14x14 | |
| Crown | A period 12 oscillator found in January 1995. | crown.rle | 23/3 | 63 | 23x14 | |
| Crown_synth | Glider synthesis of crown. | crown_synth.rle | 23/3 | 768 | 118x117 | |
| Cthulhu | http://conwaylife.com/wiki/Cthulhu | cthulhu.rle | 23/3 | 45 | 11x13 | |
| Cuphook | A period 3 oscillator with 3 cells in its rotor. Found in October 1970. | cuphook.rle | 23/3 | 18 | 9x8 | |
| Cuphook_synth | Glider synthesis of cuphook. | cuphook_synth.rle | 23/3 | 323 | 120x77 | |
| Cyclic | http://conwaylife.com/wiki/Cyclic | cyclic.rle | 23/3 | 32 | 10x10 | |
| Dart | An orthogonal period 3 spaceship with speed c/3 that was found in May 1992. | dart.rle | 23/3 | 34 | 15x10 | |
| Dart_synth | Glider synthesis of the dart, December 2014. | dart_synth.rle | 23/3 | 125 | 55x55 | |
| Dead spark coil | An 18-cell still life. | deadsparkcoil.rle | 23/3 | 18 | 7x5 | |
| Dead spark coil_synth | Glider synthesis of a dead spark coil. | deadsparkcoil_syn... | 23/3 | 76 | 74x8 | |
| Decapole | http://conwaylife.com/wiki/Decapole | decapole.rle | 23/3 | 16 | 13x13 | |
| Decapole_synth | Glider synthesis of the decapole. | decapole_synth.rle | 23/3 | 70 | 73x33 | |
| Deep cell | A unit Life cell that simulates two Life universes at once. | deepcell.rle | 23/3 | 5449 | 499x516 | |
| Demonoid | http://conwaylife.com/wiki/Demonoid | demonoid.mc | B3/S23 | 27730 | 55010x54964 | |
| demonoid_synth | demonoid_synth.rle | 23/3 | 60080 | 669009x500424 | ||
| diagfuse1 | Jason Summers, 25 Aug 1999 (minor optimizations made later). | diagfuse1.rle | 23/3 | 760 | 127x133 | |
| diagonal | Sample c/4, c/5 and c/6 diagonal spaceships | diagonal.rle | 23/3 | 946 | 114x92 | |
| diamond_greyship | diamond-shaped greyship Hartmut Holzwart 4 Jul 2005 | diamond_greyship.rle | 23/3 | 1822 | 88x83 | |
| Diamond ring | A period 3 oscillator found in 1972. | diamondring.rle | 23/3 | 40 | 13x13 | |
| Diamond ring_synth | A 28-glider synthesis of a variation of diamond ring | diamondring_synth... | 23/3 | 184 | 92x73 | |
| die658 | Creator: Lifestat application | die658.rle | 23/3 | 115 | 20x20 | |
| Die hard | A methuselah that dies completely. It has lifespan 130. | diehard.rle | 23/3 | 7 | 8x3 | |
| Dinner table | The first period 12 oscillator to be found. Discovered in 1972. | dinnertable.rle | 23/3 | 33 | 13x13 | |
| Dinner table extension | An extension of dinner table | dinnertableextens... | 23/3 | 208 | 34x34 | |
| Diuresis | A period 90 oscillator originally discovered by David Eppstein and | diuresis.rle | 23/3 | 121 | 29x25 | |
| Dock | An induction coil. | dock.rle | 23/3 | 10 | 6x3 | |
| Dock siamese carrier | http://conwaylife.com/wiki/Dock_siamese_carrier | docksiamesecarrie... | 23/3 | 14 | 6x6 | |
| Orthogonal on-off | http://conwaylife.com/wiki/Orthogonal_on-off | domino.rle | 23/3 | 2 | 2x1 | |
| Do-see-do | The do-see-do reaction discovered in 1996 | doseedo.rle | 23/3 | 66 | 55x38 | |
| Double caterer | A period 3 oscillator found in October 1989. | doublecaterer.rle | 23/3 | 65 | 19x12 | |
| Double ewe | A period 3 oscillator found no later than September 1971. | doubleewe.rle | 23/3 | 54 | 20x20 | |
| Double X | A period 46 oscillator based on the twin bees shuttle. | doublex.rle | 23/3 | 350 | 131x63 | |
| Dove | http://conwaylife.com/wiki/Dove | dove.rle | 23/3 | 9 | 5x4 | |
| Dragon | An orthogonal period 6 spaceship. The first c/6 spaceship to be constructed. | dragon.rle | 23/3 | 102 | 29x18 | |
| Dragon flotillae | Flotillae involving the c/6 orthogonal period 6 dragon. | dragonflotillae.rle | 23/3 | 318 | 62x30 | |
| Dragon tagalongs | Tagalongs for the dragon, a c/6 orthogonal period 6 spaceship. | dragontagalongs.rle | 23/3 | 265 | 70x36 | |
| Duodecapole | http://conwaylife.com/wiki/Duodecapole | duodecapole.rle | 23/3 | 18 | 15x15 | |
| Duoplet | http://conwaylife.com/wiki/Duoplet | duoplet.rle | 23/3 | 2 | 2x2 | |
| Eater 1 | The first discovered eater and a 7-cell still life. | eater1.rle | 23/3 | 7 | 4x4 | |
| Eater 1_synth | Glider syntheses of eater 1s. | eater1_synth.rle | 23/3 | 426 | 150x105 | |
| Eater 1 reactions | Several objects that eater 1 can be used to eat. | eater1reactions.rle | 23/3 | 133 | 101x15 | |
| Eater 1 with blinker | An eater 1 about to eat a blinker. | eater1withblinker... | 23/3 | 10 | 6x7 | |
| Eater 1 with glider | An eater 1 about to eat a glider. | eater1withglider.rle | 23/3 | 12 | 8x7 | |
| Eater 1 with loaf | An eater 1 about to eat a loaf. | eater1withloaf.rle | 23/3 | 14 | 9x7 | |
| Eater 1 with pre-beehive | An eater 1 about to eat a pre-beehive. | eater1withprebeeh... | 23/3 | 13 | 7x7 | |
| Eater 2 | A well-known eater and 19-cell still life that can eat gliders that approach ... | eater2.rle | 23/3 | 19 | 7x7 | |
| Eater 2_synth | A 9-glider synthesis of a variation of eater 2 | eater2_synth.rle | 23/3 | 118 | 67x34 | |
| Eater 3 | A 31-cell still life and symmetric eater. | eater3.rle | 23/3 | 31 | 12x12 | |
| Eater 4 | A 40-cell still life and eater that doesn't eat gliders, but does eat other o... | eater4.rle | 23/3 | 40 | 14x14 | |
| eater4_synth | Glider synthesis of eater 4 | eater4_synth.rle | 23/3 | 85 | 125x125 | |
| Eater 5 | A 12-cell still life and eater composed of a tub with tail and a block that i... | eater5.rle | 23/3 | 12 | 9x6 | |
| Eater 5 eating gliders | An eater 5 eating gliders from different directions | eater5eatingglide... | 23/3 | 22 | 13x14 | |
| Eater/block frob | A period 4 oscillator found in 1976 or earlier. | eaterblockfrob.rle | 23/3 | 20 | 10x10 | |
| Eater/block frob_synth | A 12-glider synthesis of Eater/block frob | eaterblockfrob_sy... | 23/3 | 78 | 69x22 | |
| Eater head siamese carrier | http://conwaylife.com/wiki/Eater_head_siamese_carrier | eaterheadsiamesec... | 23/3 | 11 | 7x5 | |
| Eater head siamese snake | http://conwaylife.com/wiki/Eater_head_siamese_snake | eaterheadsiameses... | 23/3 | 11 | 7x4 | |
| Eater on boat | A 12-cell still life consisting of an eater 1 and a boat. | eateronboat.rle | 23/3 | 12 | 5x7 | |
| Eater on boat_synth | Glider synthesis of eater on boat. | eateronboat_synth... | 23/3 | 299 | 143x100 | |
| Eater plug | A period 2 oscillator found in February 1973. | eaterplug.rle | 23/3 | 14 | 8x8 | |
| Eater plug_synth | Glider synthesis of eater plug. | eaterplug_synth.rle | 23/3 | 249 | 118x67 | |
| eaters-misc | Some examples of eater-like objects consuming | eaters-misc.rle | 23/3 | 316 | 99x49 | |
| eaters | Still lifes that eat gliders. | eaters.rle | 23/3 | 911 | 126x135 | |
| Eater siamese eater | A 12-cell still life composed of two eaters. | eatersiameseeater... | 23/3 | 12 | 4x7 | |
| Eater siamese eater_synth | Glider syntheses of eater siamese eater | eatersiameseeater... | 23/3 | 321 | 107x102 | |
| Eater stamp collection | A collection of glider eaters, arranged by their recovery time. | eaterstampcollect... | 23/3 | 5501 | 241x350 | |
| Eater tail siamese carrier | http://conwaylife.com/wiki/Eater_tail_siamese_carrier | eatertailsiamesec... | 23/3 | 11 | 4x7 | |
| Eater tail siamese snake | http://conwaylife.com/wiki/Eater_tail_siamese_snake | eatertailsiameses... | 23/3 | 11 | 4x7 | |
| Eater with cape | http://conwaylife.com/wiki/Eater_with_cape | eaterwithcape.rle | 23/3 | 11 | 6x4 | |
| Ecologist | A period 20 c/2 orthogonal spaceship based on one of the classic puffer trains. | ecologist.rle | 23/3 | 53 | 27x18 | |
| Ed | Methuselah_35426 ("Ed"), discovered 17 June 2010 | ed.rle | 23/3 | 150 | 20x20 | |
| Edge repair Herschel | A period 3 c/3 orthogonal edge-repair spaceship that is about to collide with... | edgerepairhersche... | 23/3 | 33 | 24x7 | |
| Edge-repair spaceship 1 | An orthogonal period 3 c/3 edge-repair spaceship that was found in 1992. | edgerepairspacesh... | 23/3 | 26 | 16x7 | |
| Edge-repair spaceship 2 | An orthogonal c/4 period 4 edge-repair spaceship that uses a T-tetromino reac... | edgerepairspacesh... | 23/3 | 51 | 22x11 | |
| Edge-repair spaceship 1 deleting various objects and surviving. | http://www.conwaylife.com/wiki/Edge-repair_spaceship_1 | edgerepairspacesh... | 23/3 | 163 | 113x11 | |
| Edna | A methuselah with lifespan 31,192. | edna.rle | 23/3 | 149 | 20x20 | |
| Edna 26 | A methuselah with lifespan 31,082. | edna26.rle | 23/3 | 26 | 43x26 | |
| E-heptomino | http://conwaylife.com/wiki/E-heptomino | eheptomino.rle | 23/3 | 7 | 4x3 | |
| elbow-ladders | Left: Single glider Elbow Ladder, based on Dieter Leithner's | elbow-ladders.rle | 23/3 | 2183 | 463x206 | |
| Electric fence | A stabilization of ants that is a period 5 oscillator. http://www.c | electricfence.rle | 23/3 | 197 | 61x15 | |
| Elevener | An 11-cell still life. | elevener.rle | 23/3 | 11 | 6x6 | |
| Elevener_synth | Glider syntheses of elevener. | elevener_synth.rle | 23/3 | 73 | 64x40 | |
| Eleven loop | An 11-cell still life. | elevenloop.rle | 23/3 | 11 | 5x5 | |
| Eleven loop_synth | Glider syntheses of eleven loop | elevenloop_synth.rle | 23/3 | 224 | 73x123 | |
| Elkies' p5 | A period 5 oscillator found in 1997. | elkiesp5.rle | 23/3 | 20 | 9x8 | |
| Elkies' p5_synth | Glider synthesis of Elkies' p5. | elkiesp5_synth.rle | 23/3 | 333 | 158x70 | |
| Ellison p4 HW emulator | A period 4 oscillator that provides a spark like a heavyweight spac | ellisonp4hwemulat... | 23/3 | 54 | 24x9 | |
| Ellison p4 HW emulator hybrid | A period 4 oscillator that produces a domino spark. | ellisonp4hwemulat... | 23/3 | 45 | 20x9 | |
| email.rle | 1357/1357 | 197 | 71x12 | |||
| Empty | empty.rle | 0 | 1x1 | |||
| En retard | A period 3 oscillator found in August 1972. | enretard.rle | 23/3 | 40 | 11x11 | |
| Enterprise | A period 4 diagonal spaceship with speed c/4 found in March 1993. | enterprise.rle | 23/3 | 69 | 21x21 | |
| Eureka | A period 30 pre-pulsar shuttle oscillator that was found in August 1980. | eureka.rle | 23/3 | 28 | 18x11 | |
| Eureka_synth | Glider syntheses of Eureka | eureka_synth.rle | 23/3 | 297 | 114x114 | |
| Eureka v2 | A period 30 pre-pulsar shuttle oscillator that was found in August | eurekav2.rle | 23/3 | 28 | 20x11 | |
| Eve | A 20-cell methusaleh lasting for 30046 generations, found by Andrzej Megier o... | eve.rle | 23/3 | 20 | 16x10 | |
| extensible-low-period | Some low-period oscillators have been found to be repeatable. | extensible-low-pe... | 23/3 | 3235 | 328x205 | |
| Extra extra long snake | A 10-cell still life that is the extra extra long version of a snake. | extraextralongsna... | 23/3 | 10 | 8x6 | |
| Extra extra long snake_synth | Glider synthesis of extra extra long snake. | extraextralongsna... | 23/3 | 181 | 70x73 | |
| Extra long hook with tail | http://conwaylife.com/wiki/Extra_long_hook_with_tail | extralonghookwith... | 23/3 | 11 | 5x8 | |
| Extra long shillelagh | http://conwaylife.com/wiki/Extra_long_shillelagh | extralongshillela... | 23/3 | 11 | 5x8 | |
| Extra long snake | A 9-cell still life that is the extra long version of a snake. | extralongsnake.rle | 23/3 | 9 | 7x5 | |
| Extra long snake_synth | Glider synthesis of extra long snake. | extralongsnake_sy... | 23/3 | 39 | 33x18 | |
| Extremely impressive | A period 6 oscillator found in August 1976. | extremelyimpressi... | 23/3 | 30 | 12x10 | |
| Extremely impressive_synth | A 30-glider synthesis of extremely impressive | extremelyimpressi... | 23/3 | 573 | 152x91 | |
| Fast forward force field | A reaction involving a lightweight spaceship and three gliders. In | fastforwardforcef... | 23/3 | 27 | 17x7 | |
| Feather | http://conwaylife.com/wiki/Feather | feather.rle | 23/3 | 5 | 3x4 | |
| fermat-primes | This is a Fermat prime calculator, rigged to self-destruct and stop | fermat-primes.rle | 23/3 | 10001 | 838x736 | |
| Fermat prime calculator | A pattern that is rigged to self-destruct if it finds a Fermat prim | fermatprimecalcul... | 23/3 | 10001 | 838x736 | |
| figure8on22p36 | figure8on22p36.rle | / | 36 | 21x22 | ||
| Figure eight | A period 8 oscillator found in 1970. | figureeight.rle | 23/3 | 12 | 6x6 | |
| Figure eight_synth | Glider syntheses of figure eights. | figureeight_synth... | 23/3 | 157 | 82x98 | |
| Figure eight as reflector | A figure eight reflecting gliders. | figureeightasrefl... | 23/3 | 38 | 14x17 | |
| Figure eight on 34P13 | A 46-cell non-trivial period 104 oscillator. | figureeighton34p1... | 23/3 | 46 | 16x22 | |
| Figure eight on 36P22 | A small non-trivial period 88 oscillator | figureeighton36p2... | 23/3 | 50 | 27x21 | |
| Figure eight on pentadecathlon | The smallest known period 120 oscillator. | figureeightonpent... | 23/3 | 24 | 14x10 | |
| Figure eight on rattlesnake | The smallest known period-88 oscillator. | figureeightonratt... | 23/3 | 45 | 20x15 | |
| Fireship | http://conwaylife.com/wiki/Fireship | fireship.rle | 23/3 | 72 | 12x21 | |
| Fireship synthesis | A 30-glider synthesis of the C/10 fireship spaceship | fireship_synth.rle | 23/3 | 348 | 197x53 | |
| Fire-spitting | A small period-3 oscillator found by Nicolay Beluchenko in September 2003. | firespitting.rle | 23/3 | 19 | 8x10 | |
| Fleet | A fairly common 24-cell pseudo still life made up of two ship-ties. | fleet.rle | 23/3 | 24 | 10x10 | |
| Fleet_synth | Glider synthesis of fleets. | fleet_synth.rle | 23/3 | 702 | 149x111 | |
| Floodgate | A period-2 constellation of four blinkers and four boats. | floodgate.rle | 23/3 | 32 | 16x16 | |
| Floodgate predecessor | http://conwaylife.com/wiki/Floodgate | floodgate_predece... | 23/3 | 8 | 7x7 | |
| Fly | A tagalong for an orthogonal period 3 c/3 edge-repair spaceship that was foun... | fly.rle | 23/3 | 157 | 34x20 | |
| Fly extension | Two flies attached to each other at the back of a c/3 spaceship. | flyextension.rle | 23/3 | 295 | 60x28 | |
| Flying wing | http://conwaylife.com/wiki/Flying_wing | flyingwing.rle | 23/3 | 768 | 159x90 | |
| Fly on 60P3H1V0.3 | The fly tagalong attached to the back of a 60P3H1V0.3. | flyon60p3h1v0.3.rle | 23/3 | 192 | 34x33 | |
| Fore and back | A period 2 oscillator found in July 1994. | foreandback.rle | 23/3 | 24 | 7x7 | |
| Fore and back_synth | Glider synthesis of Fore and back. | foreandback_synth... | 23/3 | 152 | 103x37 | |
| forward-LWSS-rake-p90 | A c/3 period 90 forward MWSS rake, shooting a period 90 MWSS stream | forward-LWSS-rake... | 23/3 | 6880 | 269x475 | |
| Fountain | A period 4 oscillator found in November 1994. | fountain.rle | 23/3 | 63 | 19x15 | |
| four-primers | XRLE Pos=-637,-460 | four-primers.rle | 23/3 | 20143 | 1494x1020 | |
| Four eaters hassling four bookends | A period 18 oscillator found by Jason Summers. | foureatershasslin... | 23/3 | 72 | 29x29 | |
| 56et4be4.rle | foureatershasslin... | 23/3 | 2074 | 297x283 | ||
| Fourteener | Still life with 14 cells. | fourteener.rle | 23/3 | 14 | 7x5 | |
| Fourteener_synth | Glider syntheses of fourteener | fourteener_synth.rle | 23/3 | 73 | 76x25 | |
| Fox | The smallest asymmetric period 2 oscillator. | fox.rle | 23/3 | 12 | 7x7 | |
| Fox_synth | Glider synthesis of fox. | fox_synth.rle | 23/3 | 84 | 84x25 | |
| Fred | Longest-lived known methuselah to fit within a 20�20 bounding box. | fred.rle | 23/3 | 150 | 20x20 | |
| French kiss | A period 3 oscillator found in July 1971. | frenchkiss.rle | 23/3 | 18 | 10x9 | |
| frenchkiss_synth.rle | Glider synthesis of the French kiss, January 2017: | frenchkiss_synth.rle | 23/3 | 50 | 57x46 | |
| Frog II | A period 3 oscillator found in October 1972. | frogii.rle | 23/3 | 45 | 11x13 | |
| Frothing puffer | A c/2 puffer with a seemingly unstable back end that nevertheless | frothingpuffer.rle | 23/3 | 175 | 33x23 | |
| Frothing puffer 2 | Period 270 forward rake using period tripling of p90 input streams. | frothingpuffer2.rle | 23/3 | 4548 | 249x371 | |
| Fumarole | A period 5 oscillator found in September 1989. | fumarole.rle | 23/3 | 18 | 8x7 | |
| Fumarole_synth | Incremental synthesis by Mark Niemiec, direct synthesis by Stephen | fumarole_synth.rle | 23/3 | 288 | 191x52 | |
| Fumarole on 34P13 | The smallest known non-trivial period 65 oscillator | fumaroleon34p13.rle | 23/3 | 52 | 21x18 | |
| Fumarole on 43P18 | The smallest known period-90 oscillator. | fumaroleon43p18.rle | 23/3 | 61 | 23x18 | |
| Fumarole on Achim's p11 | A small non-trivial period 55 oscillator. | fumaroleonachimsp... | 23/3 | 90 | 29x22 | |
| Fuse with tail and long tail | http://conwaylife.com/wiki/Fuse_with_tail_and_long_tail | fusewithtailandlo... | 23/3 | 11 | 7x5 | |
| Gabriel's p138 | A small period 138 oscillator, discovered on October 13, 2002 | gabrielsp138.rle | 23/3 | 36 | 21x21 | |
| Gabriel's p138_synth | A 12-glider synthesis of Gabriel's p138 | gabrielsp138_synt... | 23/3 | 100 | 63x27 | |
| Garden of Eden 1 | The first Garden of Eden that was explicitly constructed. Found in | gardenofeden1.rle | 23/3 | 226 | 33x9 | |
| Garden of Eden 2 | A Garden of Eden (and orphan) that was the smallest known at the time of its ... | gardenofeden2.rle | 23/3 | 143 | 14x14 | |
| Garden of Eden 3 | A Garden of Eden found on June 14, 2004, that was the smallest at the time of... | gardenofeden3.rle | 23/3 | 81 | 13x12 | |
| Garden of Eden 4 | The smallest known Garden of Eden until Garden of Eden 5 was found in Septemb... | gardenofeden4.rle | 23/3 | 72 | 12x11 | |
| Garden of Eden 5 | Was the smallest-known Garden of Eden in Conway's Game of Life until | gardenofeden5.rle | 23/3 | 69 | 11x11 | |
| Garden of Eden 6 | Currently (as of November 27, 2013) the smallest-known Garden of Ed | gardenofeden6.rle | 23/36 | 56 | 10x10 | |
| Gardens of Eden | Many Gardens of Eden found in 2009. | gardensofeden.rle | 23/3 | 4350 | 276x141 | |
| gemini | XRLE Pos=-2753,-4702 Gen=0 | gemini.rle | 23/3 | 846278 | 4217807x4220191 | |
| Germ | A period 3 oscillator found in September 1972. | germ.rle | 23/3 | 31 | 10x10 | |
| Glasses | A period 2 oscillator. | glasses.rle | 23/3 | 54 | 18x11 | |
| Glasses_synth | Glider synthesis of glasses. | glasses_synth.rle | 23/3 | 277 | 132x39 | |
| glider-stream-crystal | High-period oscillator built by David Dauthier, showing | glider-stream-cry... | 23/3 | 1664 | 252x221 | |
| Glider | The smallest, most common, and first discovered spaceship. Diagonal, has peri... | glider.rle | 23/3 | 5 | 3x3 | |
| Glider_synth | Glider synthesis of a glider. | glider_synth.rle | 23/3 | 110 | 110x43 | |
| Glider duplicator 1 | A glider duplicator made up of two Gosper glider guns. | gliderduplicator1... | 23/3 | 113 | 50x47 | |
| Glider emulator | P4 tagalong for two big gliders, discovered in January 1999. | glideremulator.rle | 23/3 | 144 | 30x28 | |
| Glider loop | A pattern in which two gliders are bounced back and forth along an | gliderloop.rle | 23/3 | 456 | 73x150 | |
| Glider-producing switch engine | A common diagonal period 384 c/12 puffer made out of a single switch engine. | gliderproducingsw... | 23/3 | 123 | 67x60 | |
| Glider-producing switch engine_synth | Glider synthesis for a glider-producing switch engine. | gliderproducingsw... | 23/3 | 177 | 158x87 | |
| Glider-producing switch engine predecessor | A simple predecessor of the diagonal period 384 c/12 glider-producing switch ... | gliderproducingsw... | 23/3 | 12 | 28x6 | |
| Gliders by the dozen | A methuselah with lifespan 184 that emits exactly 12 gliders over the course ... | glidersbythedozen... | 23/3 | 8 | 5x3 | |
| Gliders by the dozen_synth | Glider synthesis of gliders by the dozen. | glidersbythedozen... | 23/3 | 107 | 110x15 | |
| Glider symmetric PPS | A period 30 c/5 orthogonal spaceship in which a pre-pulsar is pushe | glidersymmetricpp... | 23/3 | 132 | 69x13 | |
| Glide symmetric PPS | A period 30 orthogonal c/5 spaceship. | glidesymmetricpps... | 23/3 | 132 | 69x13 | |
| golly-ticker | GollyTicker-Take4, based on Alan Hensel's Decimal Counter (1994). | golly-ticker.rle | 23/3 | 5043 | 2993x747 | |
| Gosper glider gun | A true period 30 glider gun. | gosperglidergun.rle | 23/3 | 36 | 36x9 | |
| Gosper glider gun_synth | Glider synthesis of Gosper glider gun. | gosperglidergun_s... | 23/3 | 40 | 47x14 | |
| Gosper glider gun (glider destruction) | Glider destruction of the Gosper glider gun. | gosperglidergungl... | 23/3 | 70 | 47x24 | |
| gotts-dots.mc | 'Gotts Dots': sprouts its nth switchengine at t ~ 2^(24n-6) -- | gotts-dots.mc | 41 | 187x39 | ||
| Gotts dots | A 41-cell pattern with population exhibits growth like tln(t). | gottsdots.rle | 23/3 | 41 | 187x39 | |
| Gourmet | A period 32 oscillator found in March 1978. | gourmet.rle | 23/3 | 66 | 20x20 | |
| Grandfather problem | http://conwaylife.com/wiki/Grandfather_problem | grandfatherproble... | 23/3 | 298 | 24x23 | |
| Gray counter | A period 4 oscillator. | graycounter.rle | 23/3 | 26 | 13x9 | |
| Gray counter_synth | Glider synthesis of Gray counter. | graycounter_synth... | 23/3 | 579 | 144x111 | |
| Great on-off | A period 2 oscillator. | greatonoff.rle | 23/3 | 18 | 8x8 | |
| Great on off_synth | Glider synthesis of pincers. | greatonoff_synth.rle | 23/3 | 192 | 80x98 | |
| greyship-c-over-3 | c/3 greyship: Hartmut Holzwart, 24 July 2005 | greyship-c-over-3... | 23/3 | 3571 | 131x115 | |
| Griddle and beehive | A period 2 oscillator. | griddleandbeehive... | 23/3 | 17 | 6x8 | |
| Griddle and beehive_synth | A 16-glider synthesis of griddle and beehive | griddleandbeehive... | 23/3 | 161 | 159x71 | |
| Griddle and block | A period 2 oscillator. | griddleandblock.rle | 23/3 | 15 | 6x7 | |
| Griddle and block_synth | A 14-glider synthesis of griddle and block | griddleandblock_s... | 23/3 | 119 | 119x71 | |
| Griddle and blocks | http://conwaylife.com/wiki/Griddle_and_blocks | griddleandblocks.rle | 23/3 | 19 | 6x7 | |
| Griddle and boat | A period 2 oscillator. | griddleandboat.rle | 23/3 | 16 | 6x8 | |
| Griddle and boat_synth | A 17-glider synthesis of griddle and boat | griddleandboat_sy... | 23/3 | 165 | 159x71 | |
| Griddle and dock | http://conwaylife.com/wiki/Griddle_and_dock | griddleanddock.rle | 23/3 | 21 | 7x8 | |
| Griddle and table | http://conwaylife.com/wiki/Griddle_and_table | griddleandtable.rle | 23/3 | 17 | 6x7 | |
| Grin | A common parent of the block. | grin.rle | 23/3 | 4 | 4x2 | |
| gun-p165mwss | p165 MWSS gun based on a three-gliders -> MWSS+glider+LoM reaction | gun-p165mwss.rle | 23/3 | 563 | 178x218 | |
| Gunstar | A four-barreled true period 144 glider gun found in 1990. | gunstar.rle | 23/3 | 736 | 149x149 | |
| Gunstar 2 | A four-barrelled true period 168 glider gun. | gunstar2.rle | 23/3 | 363 | 119x119 | |
| Gunstar 216 | A true period 216 version of the gunstar. | gunstar216.rle | 23/3 | 712 | 149x149 | |
| Hacksaw | An orthogonal sawtooth with expansion factor equal to 9 that was fo | hacksaw.rle | 23/3 | 687 | 199x102 | |
| Halfmax | A half spacefiller found in 2005. | halfmax.rle | 23/3 | 904 | 65x80 | |
| Halfmax v2 | A half spacefiller found in 2005. | halfmaxv2.rle | 23/3 | 2285 | 117x112 | |
| Halfmax v3 | A half spacefiller found in 2005. | halfmaxv3.rle | 23/3 | 1135 | 111x84 | |
| Hammerhead | An orthogonal period 4 c/2 spaceship with many different possible rear ends. | hammerhead.rle | 23/3 | 76 | 18x16 | |
| Harbor | A period 5 oscillator found in September 1978. | harbor.rle | 23/3 | 64 | 17x17 | |
| Harbor_synth | Glider synthesis of harbor. | harbor_synth.rle | 23/3 | 170 | 209x209 | |
| Harvester | A diagonal period 4 lightspeed fuse that was the first published example of a... | harvester.rle | 23/3 | 26 | 18x15 | |
| hashlife-oddity1.mc | Forward-shooting switchengine interacts with a dirty Schickoidal | hashlife-oddity1.mc | 45 | 114x25 | ||
| hashlife-oddity2.mc | Slight variation on hashlife-oddity1 | hashlife-oddity2.mc | 40 | 119x25 | ||
| Hat | A 9-cell still life. | hat.rle | 23/3 | 9 | 5x4 | |
| Hat_synth | Glider synthesis of hats. | hat_synth.rle | 23/3 | 77 | 109x18 | |
| Heart | A period 5 oscillator. | heart.rle | 23/3 | 26 | 11x11 | |
| Heavyweight emulator | A period 4 oscillator that produces sparks similar to that of the heavyweight... | heavyweightemulat... | 23/3 | 34 | 16x7 | |
| Heavyweight emulator_synth | Glider synthesis of heavyweight emulator. | heavyweightemulat... | 23/3 | 426 | 128x64 | |
| Heavyweight volcano | A period 5 oscillator that emits a rather isolated domino spark. | heavyweightvolcan... | 23/3 | 124 | 24x17 | |
| Hebdarole | A period 7 oscillator found in November 1997. | hebdarole.rle | 23/3 | 97 | 24x18 | |
| Hectic | A period 30 oscillator found in September 1984. | hectic.rle | 23/3 | 74 | 39x39 | |
| heisenblinker-30 | p30 Heisenblinker device: Mike Playle, 26 September 2006 | heisenblinker-30.rle | 23/3 | 223 | 68x74 | |
| heisenburp-30 | p30 Heisenburp, a pattern which can detect the passage of a glider | heisenburp-30.rle | 23/3 | 545 | 139x157 | |
| heisenburp-46-natural | Glider Flyby with glider Out of the Blue: | heisenburp-46-nat... | 23/3 | 123 | 46x51 | |
| heisenburp-46 | Period 46 pure Heisenburp device | heisenburp-46.rle | 23/3 | 724 | 213x209 | |
| Heptapole | The barberpole of length 7 and thus a period 2 oscillator. | heptapole.rle | 23/3 | 13 | 10x10 | |
| Heptapole_synth | Glider synthesis of heptapole. | heptapole_synth.rle | 23/3 | 204 | 119x53 | |
| Herschel | A heptomino shaped like the lowercase letter h, which occurs at generation 20... | herschel.rle | 23/3 | 7 | 3x4 | |
| Herschel grandparent | A grandparent of the herschel. | herschelgrandpare... | 23/3 | 7 | 5x4 | |
| Herschel parent | A parent of the herschel. | herschelparent.rle | 23/3 | 6 | 5x4 | |
| Herschel receiver | A pattern that converts to input gliders into a Herschel. Found in | herschelreceiver.rle | 23/3 | 58 | 50x33 | |
| Herschel transmitter (stable) | A stable Herschel transmitter that was found in May 1997. | herscheltransmitt... | 23/3 | 33 | 19x18 | |
| Hertz oscillator | A period 8 oscillator found by John Conway's group in 1970. | hertzoscillator.rle | 23/3 | 35 | 11x12 | |
| Hertz oscillator_synth | Glider synthesis of Hertz oscillator. | hertzoscillator_s... | 23/3 | 320 | 137x73 | |
| hexadecimal.mc | HexaDecimal.mc.gz | hexadecimal.mc | 2104670 | 32768x20480 | ||
| Hexapole | The barberpole of length 6 and thus a period 2 oscillator. | hexapole.rle | 23/3 | 12 | 9x9 | |
| Hexapole_synth | Glider synthesis of hexapole. | hexapole_synth.rle | 23/3 | 72 | 38x21 | |
| Hexominoes | All 35 hexominoes | hexominoes.rle | 23/3 | 210 | 82x43 | |
| high-bandwidth-telegraph | High-bandwidth telegraph with LCD (Loafer Character Display) | high-bandwidth-te... | 23/3 | 133510 | 10433x2413 | |
| HighLife 10-cell still lifes | All 25 10-cell still lifes in the HighLife (23/36) rule. | highlife10cellsti... | 23/36 | 250 | 124x16 | |
| HighLife 11-cell still lifes | All 44 11-cell still lifes in the HighLife (23/36) rule. | highlife11cellsti... | 23/36 | 484 | 115x42 | |
| HighLife 12-cell still lifes | All 111 12-cell still lifes in the HighLife (23/36) rule. | highlife12cellsti... | 23/36 | 1332 | 259x71 | |
| HighLife 13-cell still lifes | All 218 13-cell still lifes in the HighLife (23/36) rule. | highlife13cellsti... | 23/36 | 2834 | 288x150 | |
| HighLife 4-cell still lifes | Both 4-cell still lifes in the HighLife (23/36) rule. | highlife4cellstil... | 23/36 | 8 | 9x3 | |
| HighLife 5-cell still lifes | The only 5-cell still life in the HighLife (23/36) rule. | highlife5cellstil... | 23/36 | 5 | 3x3 | |
| HighLife 6-cell still lifes | All 4 6-cell still lifes in the HighLife (23/36) rule. | highlife6cellstil... | 23/36 | 24 | 25x4 | |
| HighLife 7-cell still lifes | All 4 7-cell still lifes in the HighLife (23/36) rule. | highlife7cellstil... | 23/36 | 28 | 26x4 | |
| HighLife 8-cell still lifes | All 9 8-cell still lifes in the HighLife (23/36) rule. | highlife8cellstil... | 23/36 | 72 | 65x5 | |
| HighLife 9-cell still lifes | All 9 9-cell still lifes in the HighLife (23/36) rule. | highlife9cellstil... | 23/36 | 81 | 84x6 | |
| Replicator-based period 96 oscillator in HighLife (B36/S23) | http://conwaylife.com/wiki/HighLife | highlifereplicato... | 23/36 | 24 | 35x19 | |
| highway-robber-no-stage | revised highway robber, using a Herschel-to-blinker converter | highway-robber-no... | 23/3 | 1036 | 229x233 | |
| highway-robber-staged | Highway robber with multi-stage recovery: even though the full | highway-robber-st... | 23/3 | 1227 | 272x218 | |
| Hive maker | A period 4 diagonal lightspeed fuse that creates beehives as its burns. | hivemaker.rle | 23/3 | 18 | 17x14 | |
| Hivenudger | A period 4 c/2 orthogonal spaceship. | hivenudger.rle | 23/3 | 42 | 13x13 | |
| Hivenudger 2 | An orthogonal period 8 c/2 line puffer based on the hivenudger. It leaves a t... | hivenudger2.rle | 23/3 | 163 | 30x27 | |
| Hivenudger_synth | Glider synthesis of a hivenudger. | hivenudger_synth.rle | 23/3 | 268 | 154x109 | |
| Hive test tube baby | http://conwaylife.com/wiki/Hive_test_tube_baby | hivetesttubebaby.rle | 23/3 | 20 | 12x6 | |
| honey-farm-hasslers | Honey farm hasslers. | honey-farm-hassle... | 23/3 | 3899 | 387x262 | |
| Honeybit | www.conwaylife.com/wiki/Honeybit | honeybit.rle | 23/3 | 32 | 34x14 | |
| Honeycomb | A symmetric 12-cell still life. | honeycomb.rle | 23/3 | 12 | 6x5 | |
| Honeycomb_synth | Glider synthesis of honeycomb (aka. superbeehive). | honeycomb_synth.rle | 23/3 | 478 | 116x116 | |
| Honey farm | A common 24-cell still life that is made up of four beehives. | honeyfarm.rle | 23/3 | 24 | 13x13 | |
| Honey farm_synth | Glider syntheses of honey farms. | honeyfarm_synth.rle | 23/3 | 500 | 152x73 | |
| Honey thieves | The smallest known period 17 oscillator in terms of population | honeythieves.rle | 23/3 | 36 | 15x15 | |
| Honeythieves_synth | Glider synthesis of the Honey thieves. | honeythieves_synt... | 23/3 | 327 | 135x84 | |
| Honey thieves with test tube baby | A trivial period-34 oscillator | honeythieveswitht... | 23/3 | 43 | 16x19 | |
| Hook | http://conwaylife.com/wiki/Hook | hook.rle | 23/3 | 4 | 3x2 | |
| Hooks | A period 5 oscillator. | hooks.rle | 23/3 | 21 | 11x10 | |
| Hook test tube baby | http://conwaylife.com/wiki/Hook_test_tube_baby | hooktesttubebaby.rle | 23/3 | 16 | 10x5 | |
| Hook with tail | An 8-cell still life that went for a long time with no well-established name. | hookwithtail.rle | 23/3 | 8 | 5x4 | |
| Hook with tail_synth | Glider syntheses of hook with tail | hookwithtail_synt... | 23/3 | 135 | 68x76 | |
| House | An induction coil. | house.rle | 23/3 | 9 | 5x3 | |
| House_synth | Glider syntheses of house. | house_synth.rle | 23/3 | 336 | 147x68 | |
| House on house siamese table-on-table weld hat-siamese-hat | A 34-bit still life. | houseonhousesiame... | 23/3 | 34 | 7x13 | |
| Hungry hat | http://conwaylife.com/wiki/Hungry_hat | hungryhat.rle | 23/3 | 11 | 6x5 | |
| hungryhat_synth | Glider synthesis of hungry hat | hungryhat_synth.rle | 23/3 | 31 | 34x12 | |
| Hustler | A period 3 oscillator found in June 1971. | hustler.rle | 23/3 | 30 | 11x12 | |
| Hustler_synth | Glider synthesis of hustler. | hustler_synth.rle | 23/3 | 1563 | 182x142 | |
| Hustler II | A period 4 oscillator. | hustlerii.rle | 23/3 | 42 | 16x13 | |
| Hustler II_synth | Glider synthesis of hustler II. | hustlerii_synth.rle | 23/3 | 1098 | 155x119 | |
| Heavyweight spaceship | A very well-known period 4 c/2 orthogonal spaceship. | hwss.rle | 23/3 | 13 | 7x5 | |
| Heavyweight spaceship_synth | Glider synthesis of heavyweight spaceships. | hwss_synth.rle | 23/3 | 387 | 151x105 | |
| HWSS blinker fuse | A c/2 orthogonal period 8 blinker fuse. | hwssblinkerfuse.rle | 23/3 | 34 | 28x9 | |
| HWSS glider collision sample | first row: the five ways to delete a forward glider with an HWSS | hwssglidercollisi... | 23/3 | 164 | 90x38 | |
| Infinite glider hotel | A pattern in which two pairs of Corderships recede and allow more and | infinitegliderhot... | 23/3 | 1278 | 566x572 | |
| Infinite glider hotel 2 | A more compact infinite glider hotel, created on May 29, 2001. | infinitegliderhot... | 23/3 | 2120 | 274x206 | |
| Infinite glider hotel 3 | Another compact infinite glider hotel, created in May, 2001. | infinitegliderhot... | 23/3 | 1707 | 256x157 | |
| Infinite glider hotel 4 | Another compact infinite glider hotel, created on January 28, 2015. | infinitegliderhot... | 23/3 | 1379 | 198x165 | |
| Infinite LWSS hotel | Similar to the infinite glider hotel, but for lightweight spaceship | infinitelwsshotel... | 23/3 | 3357 | 515x298 | |
| infinity-hotel0 | original Infinite Glider Hotel | infinity-hotel0.rle | 23/3 | 1278 | 566x572 | |
| infinity-hotel1 | Infinite Glider Hotel | infinity-hotel1.rle | 23/3 | 2120 | 274x206 | |
| infinity-hotel2 | An improved "infinite glider hotel". | infinity-hotel2.rle | 23/3 | 1707 | 256x157 | |
| infinity-hotel3 | "Infinite LWSS hotel" | infinity-hotel3.rle | 23/3 | 3357 | 515x298 | |
| Inflected 30-great sym | The most common naturally-occurring 32-bit still life. | inflected30greats... | 23/3 | 32 | 9x8 | |
| 32-1.rle | inflected30greats... | 23/3 | 170 | 128x46 | ||
| Inline inverter | A reaction in which the Gosper glider gun can be used to invert the | inlineinverter.rle | 23/3 | 53 | 36x20 | |
| Integral sign | A 9-cell still life. | integralsign.rle | 23/3 | 9 | 5x5 | |
| Integral sign_synth | Glider syntheses of integral signs. | integralsign_synt... | 23/3 | 179 | 141x101 | |
| Integral with hook | A 10-cell still life. | integralwithhook.rle | 23/3 | 10 | 6x5 | |
| Integral with hook_synth | Glider synthesis of integral with hook. | integralwithhook_... | 23/3 | 300 | 145x103 | |
| Integral with long hook | http://conwaylife.com/wiki/Integral_with_long_hook | integralwithlongh... | 23/3 | 11 | 7x5 | |
| Integral with tub | A 10-cell still life. | integralwithtub.rle | 23/3 | 10 | 6x6 | |
| Integral with tub_synth | Glider synthesis of integral with tub. | integralwithtub_s... | 23/3 | 102 | 116x15 | |
| Integral with tub and hook | http://conwaylife.com/wiki/Integral_with_tub_and_hook | integralwithtuban... | 23/3 | 11 | 6x7 | |
| Integral with two tubs | http://conwaylife.com/wiki/Integral_with_two_tubs | integralwithtwotu... | 23/3 | 11 | 7x7 | |
| Interchange | A common period 2 oscillator made up of six blinkers. | interchange.rle | 23/3 | 18 | 14x7 | |
| Interchange_synth | Glider syntheses of interchanges. | interchange_synth... | 23/3 | 230 | 76x106 | |
| Iwona | A methuselah with lifespan 28786. Found on August 20, 2004. | iwona.rle | 23/3 | 19 | 20x21 | |
| Jack | A period 4 oscillator found in April 1984. | jack.rle | 23/3 | 42 | 13x9 | |
| Jack_synth | Glider synthesis of jack. | jack_synth.rle | 23/3 | 488 | 114x106 | |
| jagged.mc | Jagged lines of gliders, formed by a drifting collision of two | jagged.mc | 637 | 125x67 | ||
| jagged2.mc | A variant of the jagged line pattern in which some of the gliders | jagged2.mc | 651 | 125x86 | ||
| Jagged lines | Jagged lines of gliders, formed by a drifting collision of two LWSS | jaggedlines.rle | 23/3 | 637 | 125x67 | |
| Jam | A period 3 oscillator. | jam.rle | 23/3 | 13 | 6x7 | |
| Jam_synth | Glider synthesis of jam. | jam_synth.rle | 23/3 | 152 | 149x22 | |
| Jam on 34P13.1 | The smallest known period 39 oscillator as of April 2009, though it | jamon34p13.1.rle | 23/3 | 47 | 21x16 | |
| Jam on 44P7.2 | The smallest known non-trivial period 21 oscillator. Has a single cell that o... | jamon44p7.2.rle | 23/3 | 61 | 17x16 | |
| Jason's bow | A period 404 double-barreled gun based on the original Safalra's bow. | jasonsbow.rle | 245/368 | 330 | 92x42 | |
| Jason's p11 | A period 11 oscillator. | jasonsp11.rle | 23/3 | 144 | 25x25 | |
| Jason's p6 | http://conwaylife.com/wiki/Jason%27s_p6 | jasonsp6.rle | 23/3 | 36 | 10x10 | |
| Jaws | A 150-cell breeder found by Nick Gotts in 1997. | jaws.rle | 23/3 | 150 | 654x2881 | |
| Jaydot | http://conwaylife.com/wiki/Jaydot | jaydot.rle | 23/3 | 9 | 3x6 | |
| Jellyfish | A c/7 period 7 diagonal spaceship for the move rule. | jellyfish.rle | 245/368 | 5 | 4x4 | |
| Jolson | A period 15 oscillator consisting of two blocks hassled by two pentadecathlon... | jolson.rle | 23/3 | 69 | 13x19 | |
| Jolson_synth | Glider syntheses of Jolson. | jolson_synth.rle | 23/3 | 325 | 100x100 | |
| Jolson (period 9) | A period 9 modification of the Jolson oscillator. | jolsonperiod9.rle | 23/3 | 117 | 22x24 | |
| Jason's p36 | http://conwaylife.com/wiki/Jason%27s_p36 | jsp36.rle | 23/3 | 56 | 39x18 | |
| Justyna | A methuselah with lifespan 26458 that was found in May 2004. | justyna.rle | 23/3 | 20 | 22x17 | |
| Karel's p15 | A period 15 oscillator discovered on December 11, 2002 | karelsp15.rle | 23/3 | 28 | 10x11 | |
| Karel's p15_synth | An 18-glider synthesis of Karel's p15 | karelsp15_synth.rle | 23/3 | 118 | 64x33 | |
| Kickback reaction | http://conwaylife.com/wiki/Kickback_reaction | kickbackreaction.rle | 23/3 | 10 | 8x7 | |
| Killer candlefrobras | A period 3 oscillator made up of two candlefrobras that act in some ways like... | killercandlefrobr... | 23/3 | 32 | 21x5 | |
| Killer candlefrobras eating a HWSS | Killer candlefrobras, a period 3 oscillator made up of two candlefrobras that... | killercandlefrobr... | 23/3 | 45 | 21x14 | |
| Killer toads | A period 2 oscillator made up of a pair of toads acting together so that they... | killertoads.rle | 23/3 | 12 | 4x7 | |
| Knightwave | http://conwaylife.com/wiki/Knightwave | knightwave.rle | 23/3 | 448 | 319x192 | |
| Kok's galaxy | A period 8 oscillator that was found in 1971. | koksgalaxy.rle | 23/3 | 28 | 9x9 | |
| Kok's galaxy_synth | Incremental syntheses by Mark Niemiec and direct synthesis by Jason | koksgalaxy_synth.rle | 23/3 | 1397 | 221x113 | |
| Lake 2 | A 24-cell still life. | lake2.rle | 23/3 | 24 | 10x10 | |
| Lake 2_synth | A 10-glider synthesis of lake 2 | lake2_synth.rle | 23/3 | 82 | 71x18 | |
| Laputa | A period 2 oscillator found in September 1992. | laputa.rle | 23/3 | 32 | 12x7 | |
| lidka-predecessor | 2-gen predecessor of Lidka. Runs for 29055 gens. | lidka-predecessor... | 23/3 | 13 | 9x15 | |
| Lidka | A methuselah with lifespan 29055. | lidka.rle | 23/3 | 13 | 9x15 | |
| life-integer-constructions | Collection of small objects generated from integers written | life-integer-cons... | 23/3 | 13000 | 736x428 | |
| Life without death quadratic growth | A pattern that grows quadratically (and eventually predictably) to | lifewithoutdeathq... | 012345678/3 | 724 | 47x47 | |
| Light bulb | A period 2 oscillator that was found in 1971. | lightbulb.rle | 23/3 | 23 | 7x9 | |
| Light bulb_synth | Glider synthesis of light bulb. | lightbulb_synth.rle | 23/3 | 135 | 71x30 | |
| lightspeed | This is a mechanism that could be used for lightspeed | lightspeed.rle | 23/3 | 933 | 781x364 | |
| Light speed oscillator 1 | A period 5 extensible oscillator. | lightspeedoscilla... | 23/3 | 373 | 69x19 | |
| Light speed oscillator 2 | A period 5 extensible oscillator. | lightspeedoscilla... | 23/3 | 451 | 85x25 | |
| Light speed oscillator 3 | A period 5 extensible oscillator. | lightspeedoscilla... | 23/3 | 938 | 73x73 | |
| Lightweight emulator | A period 4 oscillator that produces sparks similar to that of the lightweight... | lightweightemulat... | 23/3 | 30 | 14x6 | |
| line-puffer-superstable | Superstable line puffer of width 76. | line-puffer-super... | 23/3 | 878 | 32x156 | |
| line-puffer-unstable | The asymmetric debris destroys the engine of this | line-puffer-unsta... | 23/3 | 422 | 17x99 | |
| linear-propagator-p237228340.mc | This pattern is a phase-shifted linear replicator in Conway's Game of Life. | linear-propagator... | B3/S23 | 290096 | 14826990x14826908 | |
| Line-puffer | A c/2 orthogonal line-puffer of width 76 | linepuffer.rle | 23/3 | 878 | 156x32 | |
| lineship1 | p96 c/12 diagonal lineship: David Bell , 24 June 2005 | lineship1.rle | 23/3 | 7178 | 675x653 | |
| lineship2 | p768 c/12 diagonal line burner: Dave Greene, 25 June 2005 | lineship2.rle | 23/3 | 9212 | 850x912 | |
| lineship3 | Smaller diagonal c/12 lineship using segmented construction | lineship3.rle | 23/3 | 3583 | 668x603 | |
| lineship4 | Adjustable-period growing/shrinking Corder-based c/12 lineship | lineship4.rle | 23/3 | 4620 | 894x809 | |
| Loading dock | A period 3 oscillator that was found in September 1972. | loadingdock.rle | 23/3 | 22 | 9x8 | |
| Loaf | A very common 7-cell still life. | loaf.rle | 23/3 | 7 | 4x4 | |
| Loaf_synth | Glider syntheses of loaves. | loaf_synth.rle | 23/3 | 301 | 148x111 | |
| loafer-gun-p210 | p210 gun for c/7 loafer spaceships | loafer-gun-p210.rle | 23/3 | 1746 | 226x195 | |
| loafer-gun-p8388608-linear.mc | This is a very slow gun shooting c/7 loafer spaceships every 2^23 ticks. | loafer-gun-p83886... | B3/S23 | 104601 | 1048708x1048955 | |
| loafer.rle | small c/7 orthogonal spaceship found 17 February 2013 | loafer.rle | 23/3 | 20 | 9x9 | |
| loafer_synth.rle | 8-glider synthesis of loafer found 18 February 2013, | loafer_synth.rle | 23/3 | 40 | 34x31 | |
| Loaflipflop | www.conwaylife.com/wiki/Loaflipflop | loaflipflop.rle | 23/3 | 79 | 34x34 | |
| Loaf siamese barge | A 10-cell still life. | loafsiamesebarge.rle | 23/3 | 10 | 5x5 | |
| Loaf siamese barge_synth | Glider synthesis of loaf siamese barge. | loafsiamesebarge_... | 23/3 | 315 | 148x104 | |
| Loaf siamese loaf | An 11-cell still life. | loafsiameseloaf.rle | 23/3 | 11 | 5x5 | |
| Loaf siamese loaf_synth | Glider synthesis of loaf siamese loaf. | loafsiameseloaf_s... | 23/3 | 286 | 108x95 | |
| Loaf test tube baby | http://conwaylife.com/wiki/Loaf_test_tube_baby | loaftesttubebaby.rle | 23/3 | 22 | 12x7 | |
| Loaf tie eater-with-tail | The third most common naturally-occurring 18-bit still life. | loaftieeaterwitht... | 23/3 | 18 | 8x7 | |
| 18-7007.rle | loaftieeaterwitht... | 23/3 | 185 | 122x108 | ||
| Loaf tractor beam | A tractor beam that pulls a loaf. | loaftractorbeam.rle | 23/3 | 70 | 47x8 | |
| logarithmic-width.mc | Patterns whose population grows logarithmically have | logarithmic-width.mc | 4600 | 1077x165 | ||
| loggrow-corder | A Cordership-based object whose population grows logarithmically. | loggrow-corder.rle | 23/3 | 824 | 158x168 | |
| Log(t)^2 growth | A pattern that experience infinite growth that is O(log(t)^2). Foun | logt2growth.rle | 23/3 | 1431 | 290x218 | |
| Long barge | An 8-cell still life. | longbarge.rle | 23/3 | 8 | 5x5 | |
| Long barge_synth | Glider synthesis of long barges. | longbarge_synth.rle | 23/3 | 174 | 146x46 | |
| Long boat | A 7-cell still life. | longboat.rle | 23/3 | 7 | 4x4 | |
| Long boat_synth | Glider synthesis of long boats. | longboat_synth.rle | 23/3 | 533 | 157x112 | |
| Long Canada goose | A Canada goose with a longer front end. | longcanadagoose.rle | 23/3 | 175 | 35x34 | |
| Long canoe | A 9-cell still life. | longcanoe.rle | 23/3 | 9 | 6x6 | |
| Long canoe_synth | Glider syntheses of long canoe. | longcanoe_synth.rle | 23/3 | 58 | 74x16 | |
| Long cis-hook with tail | An 11-bit still life. | longcishookwithta... | 23/3 | 11 | 6x7 | |
| Long cis-shillelagh | An 11-bit still life. | longcisshillelagh... | 23/3 | 11 | 6x7 | |
| Long claw with tail | An 11-bit still life. | longclawwithtail.rle | 23/3 | 11 | 7x4 | |
| Long fuse with two tails | An 11-bit still life. | longfusewithtwota... | 23/3 | 11 | 7x5 | |
| Long hook | An induction coil that is a longer version of a bookend (aka. a hook). | longhook.rle | 23/3 | 8 | 5x3 | |
| Longhook and dock | http://conwaylife.com/wiki/Longhook_and_dock | longhookanddock.rle | 23/3 | 18 | 7x6 | |
| Long hook with tail | A 9-cell still life. | longhookwithtail.rle | 23/3 | 9 | 6x4 | |
| Long hook with tail_synth | Glider synthesis of long hook with tail. | longhookwithtail_... | 23/3 | 126 | 73x51 | |
| Longhorn | A 19-bit still life. | longhorn.rle | 23/3 | 19 | 9x6 | |
| 19-4199.rle | longhorn_synth.rle | 23/3 | 183 | 77x66 | ||
| Long integral | A 10-cell still life. It is the long version of an integral sign. | longintegral.rle | 23/3 | 10 | 4x6 | |
| Long integral_synth | Glider synthesis of long integral. | longintegral_synt... | 23/3 | 101 | 70x73 | |
| Long long barge | A 10-cell still life. | longlongbarge.rle | 23/3 | 10 | 6x6 | |
| Long long barge_synth | Glider synthesis of long long barge. | longlongbarge_syn... | 23/3 | 51 | 71x10 | |
| Long long boat | A 9-cell still life. | longlongboat.rle | 23/3 | 9 | 5x5 | |
| Long long boat_synth | Glider synthesis of long long boats. | longlongboat_synt... | 23/3 | 63 | 71x13 | |
| Long long canoe | A 10-cell still life. | longlongcanoe.rle | 23/3 | 10 | 7x7 | |
| Long long canoe_synth | Glider syntheses of long long canoes. | longlongcanoe_syn... | 23/3 | 252 | 110x78 | |
| Long long hook with tail | A 10-cell still life. | longlonghookwitht... | 23/3 | 10 | 7x4 | |
| Long long hook with tail_synth | Glider synthesis of long long hook with tail. | longlonghookwitht... | 23/3 | 241 | 108x91 | |
| Long long shillelagh | A 10-cell still life that is the long long version of the shillelagh. | longlongshillelag... | 23/3 | 10 | 7x4 | |
| Long long shillelagh_synth | Glider synthesis of long long shillelagh. | longlongshillelag... | 23/3 | 201 | 107x56 | |
| Long long ship | A 10-cell still life. | longlongship.rle | 23/3 | 10 | 5x5 | |
| Long long ship_synth | Glider syntheses of long long ship | longlongship_synt... | 23/3 | 287 | 154x120 | |
| Long long snake | An 8-cell still life. | longlongsnake.rle | 23/3 | 8 | 6x4 | |
| Long long snake_synth | Glider synthesis of long long snake. | longlongsnake_syn... | 23/3 | 104 | 114x26 | |
| Long prodigal | http://conwaylife.com/wiki/Long_prodigal | longprodigal.rle | 23/3 | 11 | 7x5 | |
| Long shillelagh | A 9-cell still life that is the long version of the shillelagh. | longshillelagh.rle | 23/3 | 9 | 6x3 | |
| Long shillelagh_synth | Glider synthesis of long shillelagh. | longshillelagh_sy... | 23/3 | 176 | 83x93 | |
| Long ship | An 8-cell still life. | longship.rle | 23/3 | 8 | 4x4 | |
| Long ship_synth | Glider syntheses of long ship. | longship_synth.rle | 23/3 | 140 | 144x60 | |
| Long snake | A 7-cell still life. | longsnake.rle | 23/3 | 7 | 5x3 | |
| Long snake_synth | Glider syntheses of long snakes. | longsnake_synth.rle | 23/3 | 58 | 68x11 | |
| Loop | A 10-cell still life. | loop.rle | 23/3 | 10 | 5x4 | |
| Loop_synth | Glider synthesis of loop. | loop_synth.rle | 23/3 | 258 | 79x111 | |
| low-period | Low-period oscillators. | low-period.rle | 23/3 | 7088 | 491x249 | |
| Lightweight spaceship | A very well-known period 4 c/2 orthogonal spaceship. | lwss.rle | 23/3 | 9 | 5x4 | |
| Lightweight spaceship_synth | Glider synthesis of lightweight spaceships. | lwss_synth.rle | 23/3 | 294 | 149x103 | |
| LWSS on HWSS | http://conwaylife.com/wiki/LWSS_on_HWSS | lwssonhwss.rle | 23/3 | 22 | 7x12 | |
| LWSS on MWSS | http://conwaylife.com/wiki/LWSS_on_MWSS | lwssonmwss.rle | 23/3 | 20 | 6x12 | |
| LWSS tagalong | A tagalong for two lightweight, middleweight, or heavyweight spaces | lwsstagalong.rle | 23/3 | 117 | 25x19 | |
| make-harbor | Synthesis of p5 oscillator from 34 gliders. | make-harbor.rle | 23/3 | 170 | 209x209 | |
| make-osc-p3 | Some glider syntheses of p3 oscillators: | make-osc-p3.rle | 23/3 | 1570 | 271x186 | |
| make-osc-p4 | Some glider syntheses of p4 oscillators: | make-osc-p4.rle | 23/3 | 2405 | 331x345 | |
| make-osc-p5-plus | 5-1. "fumarole", Stephen Silver, 2/00 | make-osc-p5-plus.rle | 23/3 | 2843 | 343x232 | |
| make-p11 | "Achim's p11" oscillator synthesized from 96 gliders | make-p11.rle | 23/3 | 480 | 266x266 | |
| make-p18 | Glider synthesis of p18 oscillator. | make-p18.rle | 23/3 | 225 | 229x229 | |
| make-p33 | Synthesis of p33 oscillator from 68 gliders. | make-p33.rle | 23/3 | 340 | 149x149 | |
| Mangled 1 beacon | http://conwaylife.com/wiki/Mangled_1_beacon | mangled1beacon.rle | 23/3 | 16 | 7x7 | |
| Mango | A common 8-cell still life. | mango.rle | 23/3 | 8 | 5x4 | |
| Mango_synth | Glider synthesis of mangos. | mango_synth.rle | 23/3 | 496 | 157x106 | |
| Mango test tube baby | http://conwaylife.com/wiki/Mango_test_tube_baby | mangotesttubebaby... | 23/3 | 24 | 14x7 | |
| Mathematician | A period 5 oscillator found in 1972. | mathematician.rle | 23/3 | 35 | 9x11 | |
| Max | A spacefiller that fills space with zebra stripes. | max.rle | 23/3 | 187 | 27x27 | |
| Maximum volatility gun | True-period p177 gun, volatility=1. Jason Summers, 22 Oct 2009 | maximumvolatility... | 23/3 | 6434 | 1087x1043 | |
| Maze 2-cell still lifes | All 2-cell still lifes in the maze (12345/3) rule. | maze2cellstilllif... | 12345/3 | 4 | 5x2 | |
| Maze 3-cell still lifes | All 3-cell still lifes in the maze (12345/3) rule. | maze3cellstilllif... | 12345/3 | 3 | 3x3 | |
| Maze 4-cell still lifes | All 4-cell still lifes in the maze (12345/3) rule. | maze4cellstilllif... | 12345/3 | 20 | 23x4 | |
| Maze 5-cell still lifes | All 5-cell still lifes in the maze (12345/3) rule. | maze5cellstilllif... | 12345/3 | 35 | 38x5 | |
| Maze 6-cell still lifes | All 18 6-cell still lifes in the maze (12345/3) rule. | maze6cellstilllif... | 12345/3 | 108 | 58x13 | |
| Maze 7-cell still lifes | All 40 7-cell still lifes in the maze (12345/3) rule. | maze7cellstilllif... | 12345/3 | 280 | 134x15 | |
| Maze 8-cell still lifes | All 197 8-cell still lifes in the maze (12345/3) rule. | maze8cellstilllif... | 12345/3 | 1576 | 311x42 | |
| Maze 9-cell still lifes | All 669 9-cell still lifes in the maze (12345/3) rules. | maze9cellstilllif... | 12345/3 | 6021 | 281x169 | |
| Maze period 2 | Small period 2 oscillators in the maze rule. | mazeperiod2.rle | 12345/3 | 48 | 28x5 | |
| Maze still lifes | A collection of still lifes in the maze (12345/3) rule. | mazestilllifes.rle | 12345/3 | 462 | 122x22 | |
| Maze wickstretcher | A common wickstretcher in the maze (12345/3) rule. | mazewickstretcher... | 12345/3 | 20 | 6x8 | |
| Mazing | A period 4 oscillator. | mazing.rle | 23/3 | 12 | 7x7 | |
| Mazing_synth | Glider synthesis of mazing. | mazing_synth.rle | 23/3 | 91 | 70x22 | |
| Mersenne prime calculator | A pattern that computes Mersenne primes. Based on Jason Summers' Fe | mersenneprimecalc... | 23/3 | 7005 | 893x590 | |
| Merzenich p18 | The first period 18 billiard-table oscillator, found in June 2011. | merzenichp18.rle | 23/3 | 71 | 17x15 | |
| Merzenich's p64 | The smallest known period-64 oscillator. | merzenichsp64.rle | 23/3 | 34 | 21x21 | |
| metacatacryst.mc | metacatacryst -- a 52-cell pattern exhibiting quadratic growth. | metacatacryst.mc | 52 | 59739x14663 | ||
| Metacatacryst | A pattern that starts with just 52 cells but grows quadratically. | metacatacryst.rle | 23/3 | 52 | 59739x14663 | |
| metapixel-galaxy.mc | this is an OTCAmetapixel tiling which requires Golly. | metapixel-galaxy.mc | B3/S23 | 7408195 | 30720x30720 | |
| Metapixel p216 Gun | this is an OTCAmetapixel tiling which requires Golly. | metapixel-p216-gu... | B3/S23 | 128116349 | 290816x243712 | |
| metapixel-parity64.mc | this is an OTCAmetapixel tiling which requires Golly. | metapixel-parity6... | B3/S23 | 100491984 | 131072x131072 | |
| Mickey Mouse | A 26-cell still life named by Mark Niemiec. | mickeymouse.rle | 23/3 | 26 | 10x7 | |
| Middleweight emulator | A period 4 oscillator that produces sparks similar to those of the | middleweightemula... | 23/3 | 32 | 15x7 | |
| Middleweight emulator_synth | Glider synthesis of middleweight emulator. | middleweightemula... | 23/3 | 362 | 127x54 | |
| Middleweight volcano | A period 5 oscillator found in April 1992 that produces sparks much | middleweightvolca... | 23/3 | 47 | 13x11 | |
| Mini pressure cooker | A period 3 oscillator found no later than June 1972. | minipressurecooke... | 23/3 | 28 | 11x10 | |
| Mini pressure cooker_synth | A 27-glider synthesis of mini pressure cooker | minipressurecooke... | 23/3 | 353 | 134x76 | |
| Mirage | A pattern that quickly creates and destroys a Gosper glider gun. | mirage.rle | 23/3 | 331 | 68x46 | |
| Mirrored dock | A 20-cell still life composed of two docks facing each other. | mirroreddock.rle | 23/3 | 20 | 6x7 | |
| Mirrored dock_synth | Glider syntheses of mirrored docks. | mirroreddock_synt... | 23/3 | 90 | 67x19 | |
| Merzenich's P11 | Period 11 oscillator with two diagonal lines of symmetry, | mmp11.rle | 23/3 | 76 | 21x21 | |
| Mold | The smallest period 4 oscillator. | mold.rle | 23/3 | 12 | 6x6 | |
| Mold_synth | Glider synthesis of mold. | mold_synth.rle | 23/3 | 332 | 146x106 | |
| Mold and long hook eating tub | The smallest known period 12 oscillator, though it is usually considered triv... | moldandlonghookea... | 23/3 | 24 | 6x14 | |
| Mold and long hook eating tub_synth | A 20-glider synthesis of mold and long hook eating tub | moldandlonghookea... | 23/3 | 272 | 111x52 | |
| mold on 36P22 | The smallest known non-trivial period 44 oscillator | moldon36p22.rle | 23/3 | 50 | 27x16 | |
| mold on 36P22_synth | A 16-glider synthesis of mold on 36P22 | moldon36p22_synth... | 23/3 | 135 | 88x39 | |
| Mold on 41P7.2 | The smallest known non-trivial period 28 oscillator | moldon41p7.2.rle | 23/3 | 53 | 15x14 | |
| Mold on 48P31 | The smallest known period-124 oscillator. | moldon48p31.rle | 23/3 | 60 | 24x24 | |
| Mold on fumarole | The smallest known period 20 oscillator. It is non-trivial because | moldonfumarole.rle | 23/3 | 30 | 9x14 | |
| Mold on fumarole_synth | A 12-glider synthesis of mold on fumarole | moldonfumarole_sy... | 23/3 | 90 | 53x30 | |
| Mold on pentadecathlon | A small non-trivial period 60 oscillator | moldonpentadecath... | 23/3 | 24 | 10x13 | |
| Mold on pentadecathlon_synth | An 8-glider synthesis of mold on pentadecathlon | moldonpentadecath... | 23/3 | 64 | 37x19 | |
| Mold on rattlesnake | The smallest known period-44 oscillator. | moldonrattlesnake... | 23/3 | 45 | 14x15 | |
| Monoclaw test tube baby | http://conwaylife.com/wiki/Monoclaw_test_tube_baby | monoclawtesttubeb... | 23/3 | 17 | 10x6 | |
| Monogram | A period 4 oscillator found in August 1989. | monogram.rle | 23/3 | 18 | 7x5 | |
| Monogram_synth | Glider synthesis of monogram. | monogram_synth.rle | 23/3 | 189 | 146x17 | |
| Montana | A period 5 oscillator found in June 2011. | montana.rle | 23/3 | 34 | 12x10 | |
| Moon | A simple period-1 speed c spaceship in the "seeds" rule. | moon.rle | /2 | 4 | 2x4 | |
| Moose antlers | A simple 15-cell still life. | mooseantlers.rle | 23/3 | 15 | 9x5 | |
| Moose antlers_synth | Glider syntheses of moose antlers. | mooseantlers_synt... | 23/3 | 261 | 142x114 | |
| Mosquito 1 | A 103-cell quadratic growth pattern found in September 1998. | mosquito1.rle | 23/3 | 103 | 1794x412 | |
| Mosquito 1b | A 97-cell quadratic growth pattern found on October 6, 1998. | mosquito1b.rle | 23/3 | 97 | 1794x411 | |
| Mosquito 2 | An 85-cell quadratic growth pattern | mosquito2.rle | 23/3 | 85 | 1644x315 | |
| Mosquito 3 | A 75-cell quadratic growth pattern | mosquito3.rle | 23/3 | 75 | 2754x650 | |
| Mosquito 4 | A 73-cell quadratic growth pattern | mosquito4.rle | 23/3 | 73 | 2754x650 | |
| mosquito5.mc | mosquito5 -- a 71-cell pattern with a quadratic growth rate. | mosquito5.mc | 71 | 2754x650 | ||
| Mosquito 5 | A 71-cell pattern that exhibits quadratic growth. | mosquito5.rle | 23/3 | 71 | 2754x650 | |
| Move puffer | A common puffer in the move (125/368) rule. | movepuffer.rle | 245/368 | 6 | 2x6 | |
| Move still lifes | All still lifes with 10 or fewer cells in the move (245/368) rule. | movestilllifes.rle | 245/368 | 106 | 23x39 | |
| Moving sawtooth | A moving sawtooth that was found on July 10, 2005. | movingsawtooth.rle | 23/3 | 1239 | 128x173 | |
| Multum in parvo | A methuselah with lifespan 3933. | multuminparvo.rle | 23/3 | 7 | 6x4 | |
| Muttering moat 1 | A period 2 oscillator and a muttering moat, found in May 1993. | mutteringmoat1.rle | 23/3 | 15 | 7x7 | |
| mutteringmoat1_synth | Glider synthesis of muttering moat 1 | mutteringmoat1_sy... | 23/3 | 158 | 140x44 | |
| Middleweight spaceship | A very well-known period 4 c/2 orthogonal spaceship. | mwss.rle | 23/3 | 11 | 6x5 | |
| Middleweight spaceship_synth | Glider synthesis of middleweight spaceships. | mwss_synth.rle | 23/3 | 385 | 156x105 | |
| natural-LWSS | Runs for 23334 gens. Initial pop = 12. Final pops = 2898/2895 | natural-LWSS.rle | 23/3 | 12 | 8x5 | |
| Negentropy | A period 2 oscillator that is very similar to the Hertz oscillator. | negentropy.rle | 23/3 | 36 | 11x12 | |
| New five | A period 3 oscillator found in January 1990. | newfive.rle | 23/3 | 29 | 9x9 | |
| New gun 1 | A true period 46 gun. The second known basic gun. | newgun1.rle | 23/3 | 56 | 34x34 | |
| New gun 2 | A true period 144 glider gun that consists of a block factory whose output is... | newgun2.rle | 23/3 | 95 | 51x24 | |
| Newshuttle | The first period 28 oscillator to be discovered | newshuttle.rle | 23/3 | 288 | 49x49 | |
| nick-gotts-1.mc | gosblor4c2-gosblor4c2f-s17sw51 | nick-gotts-1.mc | 50 | 62x79 | ||
| nick-gotts-2.mc | nikk-nikkm1r90-w4s164 | nick-gotts-2.mc | 32 | 38x198 | ||
| Nine | http://conwaylife.com/wiki/Nine | nine.rle | 23/3 | 6 | 3x4 | |
| Noah's ark | A diagonal period 1344 c/12 puffer made up of two switch engines that was fou... | noahsark.rle | 23/3 | 16 | 15x15 | |
| Noah's ark_synth | Glider synthesis of Noah's ark. | noahsark_synth.rle | 23/3 | 102 | 120x52 | |
| Nonapole | http://conwaylife.com/wiki/Nonapole | nonapole.rle | 23/3 | 15 | 12x12 | |
| Non-monotonic spaceship 1 | An orthogonal period 4 c/4 spaceship that was the first non-monotonic spacesh... | nonmonotonicspace... | 23/3 | 66 | 21x11 | |
| Octagon 2 | The first known period 5 oscillator. | octagon2.rle | 23/3 | 16 | 8x8 | |
| Octagon 2_synth | Glider synthesis of octagon 2. | octagon2_synth.rle | 23/3 | 200 | 153x79 | |
| Octagon 2 on 36P22 | A small non-trivial period 110 oscillator | octagon2on36p22.rle | 23/3 | 52 | 32x16 | |
| Octagon 4 | http://conwaylife.com/wiki/Octagon_4 | octagon4.rle | 23/3 | 40 | 16x16 | |
| Octagon 4_synth | A 34-glider synthesis of Octagon 4 | octagon4_synth.rle | 23/3 | 218 | 142x118 | |
| Octapole | http://conwaylife.com/wiki/Octapole | octapole.rle | 23/3 | 14 | 11x11 | |
| Octapole_synth | Glider synthesis of the octapole. | octapole_synth.rle | 23/3 | 60 | 55x33 | |
| Odd keys | A period 3 oscillator. | oddkeys.rle | 23/3 | 16 | 12x5 | |
| Odd keys_synth | A 21-glider synthesis of odd keys | oddkeys_synth.rle | 23/3 | 123 | 98x77 | |
| Odd test tube baby | A period 2 oscillator. | oddtesttubebaby.rle | 23/3 | 15 | 9x6 | |
| Odd test tube baby_synth | An 11-glider synthesis of odd test tube baby | oddtesttubebaby_s... | 23/3 | 154 | 178x19 | |
| Omnibus | http://conwaylife.com/wiki/Omnibus | omnibus.rle | 23/3 | 40 | 9x10 | |
| Omnibus with tubs | http://conwaylife.com/wiki/Omnibus_with_tubs | omnibuswithtubs.rle | 23/3 | 42 | 9x11 | |
| One per generation | A tubstretcher that grows by exactly one cell every generation. | onepergeneration.rle | 23/3 | 44 | 17x15 | |
| Onion rings | A simple onion rings agar. | onionrings.rle | 23/3 | 4608 | 96x96 | |
| O-pentomino | One of the 12 pentominoes. | opentomino.rle | 23/3 | 5 | 5x1 | |
| Original diuresis | The original form of diuresis using pentadecathlons for stabilizati | originaldiuresis.rle | 23/3 | 94 | 44x21 | |
| original gliders by the dozen | The original form of gliders by the dozen | originalglidersby... | 23/3 | 20 | 9x5 | |
| Original P15 pre-pulsar spaceship | The first known period-15 c/5 orthogonal spaceship | originalp15prepul... | 23/3 | 1466 | 51x144 | |
| Original p44 pi-heptomino hassler | The original form of p44 pi-heptomino hassler | originalp44pihept... | 23/3 | 126 | 31x44 | |
| Original P56 B-heptomino shuttle | The original form of P56 B-heptomino shuttle, discovered sometime b | originalp56bhepto... | 23/3 | 99 | 40x21 | |
| Orion | A c/4 diagonal period 4 spaceship found in April 1993. | orion.rle | 23/3 | 39 | 14x15 | |
| Orion 2 | A diagonal period 4 c/4 spaceship. | orion2.rle | 23/3 | 32 | 13x13 | |
| orthogonal | Small Orthogonal Spaceships, speeds c/2, 2c/5, c/3, 2c/7, c/4, | orthogonal.rle | 23/3 | 791 | 194x76 | |
| Orthogonoid | http://conwaylife.com/wiki/Orthogonoid | orthogonoid.mc | B3/S23 | 469341 | 868779x821 | |
| Ortho-loaf and table | A 13-cell still life. | ortholoafandtable... | 23/3 | 13 | 5x7 | |
| Ortho-loaf and table_synth | Glider syntheses of ortho-loaf and table | ortholoafandtable... | 23/3 | 209 | 108x73 | |
| osc-p43+ | This pattern demonstrates the existence of oscillators of all | osc-p43+.rle | 23/3 | 236 | 65x65 | |
| oscillator-syntheses | Glider syntheses for ten oscillators. | oscillator-synthe... | 23/3 | 667 | 187x79 | |
| OTCA metapixel | A unit cell that is capable of emulating any Life-like cellular aut | otcametapixel.rle | 23/3 | 64691 | 2058x2058 | |
| OTCA metapixel (off) | A unit cell that is capable of emulating any Life-like cellular aut | otcametapixeloff.rle | 23/3 | 23920 | 2058x2058 | |
| Overweight emulator | http://conwaylife.com/wiki/Overweight_emulator | overweightemulato... | 23/3 | 39 | 17x9 | |
| Overweight spaceship | A would-be spaceship similar to the LWSS, MWSS and HWSS, but longer. It is un... | owss.rle | 23/3 | 15 | 8x5 | |
| p100-H-channel-breeder | p100 c/2 Herschel channel breeder: David Bell, 19 December 1996 | p100-H-channel-br... | 23/3 | 3682 | 647x262 | |
| p100-H-track-puffer | p100 puffer laying down Herschel tracks -- pairs of Fx77 conduits. | p100-H-track-puff... | 23/3 | 4138 | 1330x247 | |
| p103079214841 | p103079214841 (prime: 4^13*1536-263) oscillator/gun -- | p103079214841.rle | 23/3 | 1618 | 297x227 | |
| P110 traffic jam | The first period 110 oscillator to be found, discovered on October | p110trafficjam.rle | 23/3 | 558 | 111x72 | |
| p11 double-length signal injector | A period 11 oscillator discovered by Matthias Merzenich in June 2011. | p11doublelengthsi... | 23/3 | 262 | 51x46 | |
| P11 pinwheel | Rotationally symmetric p11 oscillator discovered in May 2009. | p11pinwheel.rle | 23/3 | 72 | 23x23 | |
| P124 lumps of muck hassler | Discovered July 31, 1994 | p124lumpsofmuckha... | 23/3 | 150 | 39x38 | |
| P132 Hans Leo hassler | A period 132 version of the Hans Leo hassler oscillator. | p132hansleohassle... | 23/3 | 179 | 40x39 | |
| p138 | p138 oscillator discovered as an infinite agar (not shown), but | p138.rle | 23/3 | 832 | 215x103 | |
| P144 Hans Leo hassler | A period 144 version of the Hans Leo hassler oscillator. | p144hansleohassle... | 23/3 | 146 | 33x40 | |
| P156 Hans Leo hassler | A period 156 traffic light hassler. The first period 156 oscillator | p156hansleohassle... | 23/3 | 157 | 33x40 | |
| P15 pre-pulsar spaceship | A period-15 c/5 orthogonal spaceship | p15prepulsarspace... | 23/3 | 494 | 61x43 | |
| P160 dart gun | The smallest known dart gun with the shortest period, as of December 2014. | p160dartgun.rle | 23/3 | 11094 | 657x620 | |
| p18 glider shuttle | A period-18 glider shuttle based on the p42 glider shuttle | p18glidershuttle.rle | 23/3 | 401 | 55x55 | |
| P18 honey farm hassler | A period 18 oscillator found in January 2015. | p18honeyfarmhassl... | 23/3 | 54 | 30x18 | |
| p1megacell | Universal stable metacell | p1megacell.rle | 23/3 | 205145 | 32770x32770 | |
| P200 traffic jam | A period-200 oscillator based on the traffic jam reaction, found by Bill Gosp... | p200trafficjam.rle | 23/3 | 464 | 77x77 | |
| P22 lumps of muck hassler | A period 22 oscillator found in September 2015. | p22lumpsofmuckhas... | 23/3 | 114 | 49x31 | |
| p230 glider shuttle | A period-230 oscillator based on the p50 glider shuttle | p230glidershuttle... | 23/3 | 388 | 62x52 | |
| p246 glider shuttle | A period-246 oscillator based on the p42 glider shuttle | p246glidershuttle... | 23/3 | 298 | 60x50 | |
| p24 shuttle | A period 24 shuttle oscillator found by Karel Suhajda. | p24shuttle.rle | 23/3 | 38 | 20x20 | |
| p24 shuttle synthesis | Synthesis of the p24 using 15 gliders, from Mark D. Niemiec's life synthesis ... | p24shuttle_synth.rle | 23/3 | 472 | 184x119 | |
| P26 glider shuttle | The smallest known period 26 oscillator in terms of population | p26glidershuttle.rle | 23/3 | 148 | 53x53 | |
| p270-frothing-puffer-rake | Period 270 forward rake using period tripling of p90 input streams. | p270-frothing-puf... | 23/3 | 4548 | 249x371 | |
| p30-racetrack | A very long period oscillator: 1800 generations. In more humorous | p30-racetrack.rle | 23/3 | 902 | 308x176 | |
| P30 beehive hassler | A period 30 oscillator related to the p35 beehive hassler | p30beehivehassler... | 23/3 | 372 | 79x24 | |
| p31 reflection | 48P31 acting as a 90-degree reflector | p31reflection.rle | 23/3 | 58 | 35x32 | |
| p32 blinker hassler | http://conwaylife.com/wiki/P32_blinker_hassler | p32blinkerhassler... | 23/3 | 75 | 21x23 | |
| p32 blinker hassler 2 | A period 32 oscillator found by Noam Elkies in April 2010. | p32blinkerhassler... | 23/3 | 115 | 30x24 | |
| p35.1 | The first known period 35 oscillator | p35beehivehassler... | 23/3 | 372 | 79x24 | |
| P35 honey farm hassler | Found on 9 January 2016, with a hacked version of ptbsearch | p35honeyfarmhassl... | 23/3 | 44 | 24x17 | |
| P36 toad hassler | The first period 36 oscillator to be discovered | p36toadhassler.rle | 23/3 | 86 | 20x26 | |
| p36 toadsucker | A period 36 toadsucker | p36toadsucker.rle | 23/3 | 86 | 21x26 | |
| P37 interaction | Two copies of 124P37 interacting non-trivially by hassling a beehiv | p37interaction.rle | 23/3 | 298 | 72x44 | |
| p37 reflections | period-37 180-degree and 90-degree glider reflections | p37reflections.rle | 23/3 | 553 | 271x47 | |
| P40 B-heptomino shuttle | The first period 40 oscillator to be discovered | p40bheptominoshut... | 23/3 | 68 | 26x23 | |
| P416 60P5H2V0 gun | A true period 416 gun that fires copies of 60P5H2V0. | p41660p5h2v0gun.rle | 23/3 | 26342 | 990x979 | |
| p42 glider shuttle | The first period-42 oscillator to be discovered | p42glidershuttle.rle | 23/3 | 143 | 32x32 | |
| p43 glider loop | A period-43 oscillator based on a stable reflector | p43gliderloop.rle | 23/3 | 228 | 65x65 | |
| p43 glider shuttle | A period-43 oscillator based on a stable reflector | p43glidershuttle.rle | 23/3 | 228 | 65x65 | |
| p448dartgun | A p448 gun that fires c/3 "dart" spaceships. | p448dartgun.rle | 23/3 | 25205 | 2219x2173 | |
| p44 guns | Buckingham's original gun and its improvement, as well as Dietrich | p44guns.rle | 23/3 | 612 | 212x60 | |
| P44 pi-heptomino hassler | The first period 44 oscillator to be discovered. | p44piheptominohas... | 23/3 | 102 | 31x44 | |
| P44 pi-heptomino hassler_synth | A 67-glider synthesis of the p44 pi-heptomino hassler | p44piheptominohas... | 23/3 | 393 | 94x90 | |
| P44 traffic light hassler | A period 44 oscillator. | p44trafficlightha... | 23/3 | 260 | 36x53 | |
| P44 traffic light hassler (original) | A period 44 oscillator found in April 2010. | p44trafficlightha... | 23/3 | 436 | 36x86 | |
| p45 engine | A period-45 oscillator found on 29 Apr 2009 | p45engine.rle | 23/3 | 100 | 42x42 | |
| p46 gun | The smallest known period-46 gun | p46gun.rle | 23/3 | 50 | 49x14 | |
| p46racetrack | P46 based glider racetrack -- in reality a P6072 oscillator. | p46racetrack.rle | 23/3 | 2756 | 571x383 | |
| P48 toad hassler | The first period 48 oscillator to be discovered; found on December | p48toadhassler.rle | 23/3 | 326 | 36x54 | |
| P48 toad sucker | A period 48 toad sucker | p48toadsucker.rle | 23/3 | 326 | 37x54 | |
| p50 glider shuttle | The first period-50 oscillator to be discovered | p50glidershuttle.rle | 23/3 | 188 | 33x33 | |
| P50 traffic jam | The smallest known period 50 oscillator; discovered on October 16, | p50trafficjam.rle | 23/3 | 92 | 48x16 | |
| P50 traffic jam_synth | A 34-glider synthesis of P50 traffic jam | p50trafficjam_syn... | 23/3 | 954 | 293x129 | |
| p53 glider loop | A period-53 oscillator based on a stable reflector | p53gliderloop.rle | 23/3 | 228 | 75x75 | |
| p54 shuttle | A period 54 oscillator that is a variant of the twin bees shuttle found by Da... | p54shuttle.rle | 23/3 | 68 | 29x17 | |
| P54 shuttle_synth | A 12-glider synthesis of the p54 shuttle | p54shuttle_synth.rle | 23/3 | 192 | 149x61 | |
| P56 B-heptomino shuttle | The smallest known period 56 oscillator | p56bheptominoshut... | 23/3 | 45 | 26x21 | |
| P56 B-heptomino shuttle_synth | A 19-glider synthesis of the P56 B-heptomino shuttle | p56bheptominoshut... | 23/3 | 230 | 111x79 | |
| p5760 unit Life cell | The first unit Life cell to be discovered. | p5760unitlifecell... | 23/3 | 4761 | 499x499 | |
| p57 glider loop | A period-57 oscillator based on a stable reflector | p57gliderloop.rle | 23/3 | 228 | 79x79 | |
| P57 Herschel loop 1 | The first discovered period 57 oscillator, found on December 15, 19 | p57herschelloop1.rle | 23/3 | 3004 | 334x334 | |
| P58 toadsucker | The first known period 58 oscillator | p58toadsucker.rle | 23/3 | 258 | 67x56 | |
| p59-gun-with-Snark-reflectors | Smaller p59 gun | p59-gun-with-Snar... | 23/3 | 2738 | 299x239 | |
| Period-59 glider gun (8k-by-8k) | A true-period 59 glider gun. | p59glidergun8kx8k... | 23/3 | 167863 | 8870x7352 | |
| Snark-assisted period-59 glider gun | A true-period 59 glider gun, discovered in August 2013. | p59glidergungreen... | 23/3 | 4309 | 405x355 | |
| Period-59 glider gun (original) | The first true period-59 glider gun to be discovered. | p59glidergunorigi... | 23/3 | 328021 | 14348x12790 | |
| p59 glider loop | A period-59 oscillator based on a stable reflector | p59gliderloop.rle | 23/3 | 228 | 81x81 | |
| P59 Herschel loop 1 | The first period 59 oscillator to be discovered | p59herschelloop1.rle | 23/3 | 5772 | 574x574 | |
| p59 Herschel loop 2 | A period 59 Herschel loop oscillator found in 2004. | p59herschelloop2.rle | 23/3 | 5822 | 1074x74 | |
| P5 reflector | A period 5 oscillator that can act as a glider reflector. | p5reflector.rle | 23/3 | 125 | 29x24 | |
| P5 reflector with gliders | A period 5 reflector (oscillator) reflecting gliders. | p5reflectorwithgl... | 23/3 | 141 | 29x25 | |
| p60 hassler | A period 60 oscillator found by Noam Elkies in 2002. | p60hassler.rle | 23/3 | 105 | 34x23 | |
| p6108-c4-rake | p6108 c/4 diagonal glider rake: David Bell, 14 October 2005 | p6108-c4-rake.rle | 23/3 | 15908 | 3285x3306 | |
| p61 glider loop | A period-61 oscillator based on a stable reflector | p61gliderloop.rle | 23/3 | 228 | 83x83 | |
| P61 Herschel loop 1 | The first known period 61 oscillator | p61herschelloop1.rle | 23/3 | 3549 | 404x256 | |
| P61 Herschel loop 2 | P61 oscillator discovered 23 February 1997 | p61herschelloop2.rle | 23/3 | 1596 | 381x70 | |
| p62 blinker hassler | A period-62 oscillator composed of two period-31 oscillators | p62blinkerhassler... | 23/3 | 114 | 40x26 | |
| p63 glider loop | A period-63 oscillator based on a stable reflector | p63gliderloop.rle | 23/3 | 228 | 85x85 | |
| p65 glider loop | A period-65 oscillator based on a stable reflector | p65gliderloop.rle | 23/3 | 228 | 87x87 | |
| p66 glider shuttle | A period-66 oscillator made from two 180-degree reflectors | p66glidershuttle.rle | 23/3 | 100 | 25x21 | |
| p67 glider loop | A period-67 oscillator based on a stable reflector | p67gliderloop.rle | 23/3 | 228 | 89x89 | |
| p68 glider loop | A period-68 oscillator based on a stable reflector | p68gliderloop.rle | 23/3 | 212 | 56x56 | |
| p690-PT-Cordership-gun | 15-glider construction of a 3-engine Cordership. | p690-PT-Cordershi... | 23/3 | 2473 | 517x471 | |
| P690 60P5H2V0 gun | A gun that creates copies of 60P5H2V0 via glider synthesis. Created | p69060p5h2v0gun.rle | 23/3 | 12511 | 871x854 | |
| p69 glider loop | A period-69 oscillator based on a stable reflector | p69gliderloop.rle | 23/3 | 228 | 91x91 | |
| p6 diagonal wickstretcher 1 | The first known p6 diagonal wickstretcher; partially constructed in September... | p6diagonalwickstr... | 23/3 | 384 | 61x61 | |
| p71 glider loop | A period-71 oscillator based on a stable reflector | p71gliderloop.rle | 23/3 | 228 | 93x93 | |
| p88 pi-heptomino hassler | The first period 88 oscillator to be discovered | p88piheptominohas... | 23/3 | 118 | 43x44 | |
| p8 swan tagalong | Two swans pulling a period 8 tagalong | p8swantagalong.rle | 23/3 | 117 | 28x28 | |
| p90-rake-factory | p90 gun for p20 space rake | p90-rake-factory.rle | 23/3 | 2097 | 288x129 | |
| P94S | A true period 94 twelve-barreled glider gun based on the AK47 react | p94s.rle | 23/3 | 2461 | 607x155 | |
| P94S2 | A true period 94 glider gun using the AK47 reaction. | p94s2.rle | 23/3 | 734 | 174x149 | |
| Paperclip | A 14-cell still life. | paperclip.rle | 23/3 | 14 | 5x6 | |
| Paperclip_synth | Glider synthesis of paperclips. | paperclip_synth.rle | 23/3 | 213 | 149x57 | |
| Parabolic sawtooth | A sawtooth with parabolic envelope and minimum repeating population | parabolicsawtooth... | 23/3 | 889 | 126x144 | |
| Parallel HBK | Half-bakery knightship, velocity (6,3)c/245912 | parallelhbk.mc | B3/S23 | 132946 | 31080x32771 | |
| Partial queen bee loop | Period 30 oscillator based on the queen bee loop. | partialqueenbeelo... | 23/3 | 44 | 24x24 | |
| Pedestle | A period 5 oscillator. | pedestle.rle | 23/3 | 52 | 11x17 | |
| Pedestrian Life period 190 knightship | A (5,2)c/190 knightship in Pedestrian Life (B38/S23). | pedestrianlife_kn... | 23/38 | 39 | 40x28 | |
| Pedestrian Life period 106 glider gun | A statorless rotating period 106 glider gun in Pedestrian Life (B38/S23). | pedestrianlife_p1... | 23/38 | 14 | 8x6 | |
| Penny lane | A period 4 oscillator that was found in 1972. | pennylane.rle | 23/3 | 34 | 15x10 | |
| Pentadecathlon | 10 cells placed in a row evolve into this object, which is the most natural o... | pentadecathlon.rle | 23/3 | 12 | 10x3 | |
| Pentadecathlon_synth | Glider synthesis of pentadecathlons. | pentadecathlon_sy... | 23/3 | 609 | 157x101 | |
| Pentadecathlon on 37P7.1 | A small non-trivial period 105 oscillator | pentadecathlonon3... | 23/3 | 49 | 17x16 | |
| Pentadecathlon on 38P7.2 | A small non-trivial period 105 oscillator | pentadecathlonon3... | 23/3 | 50 | 20x12 | |
| Pentadecathlon on snacker | A small period 45 oscillator | pentadecathlonons... | 23/3 | 52 | 20x17 | |
| Pentadecathlon on snacker_synth | A 23-glider synthesis of pentadecathlon on snacker | pentadecathlonons... | 23/3 | 511 | 150x127 | |
| Pentadecathlon on thumb 1 | The smallest known non-trivial period 45 oscillator | pentadecathlonont... | 23/3 | 48 | 14x17 | |
| Pentant | A period 5 oscillator found in July 1976. | pentant.rle | 23/3 | 28 | 10x12 | |
| Pentapole | The barberpole of length 5 and thus a period 2 oscillator. | pentapole.rle | 23/3 | 11 | 8x8 | |
| Pentapole_synth | Glider synthesis of pentapole. | pentapole_synth.rle | 23/3 | 159 | 108x55 | |
| Pentoad | A period 5 oscillator found in June 1977. | pentoad.rle | 23/3 | 20 | 13x12 | |
| Pentoad 1H2 | A period 5 oscillator. | pentoad1h2.rle | 23/3 | 24 | 15x12 | |
| Pentoad 2 | A period 5 oscillator. | pentoad2.rle | 23/3 | 26 | 12x17 | |
| Pentoad_synth | Glider synthesis of pentoad. | pentoad_synth.rle | 23/3 | 122 | 123x25 | |
| Pentoad with two hexominoes | A period 5 pentoad oscillator with two hexominoes in the middle. | pentoadwithtwohex... | 23/3 | 26 | 17x16 | |
| Period 11 - 14 oscillators | A collection of oscillators with period 11 - 14. | period1114oscilla... | 23/3 | 11293 | 544x263 | |
| period14glidergun | pseudo p14 gun | period14glidergun... | 23/3 | 8814 | 385x337 | |
| p20 glider gun | period20glidergun... | 23/3 | 672 | 78x42 | ||
| Period 2 oscillators | A collection of period 2 oscillators. | period2oscillator... | 23/3 | 3933 | 231x180 | |
| Period-36 glider gun | A true period 36 glider gun found by Jason Summers in 2004. | period36glidergun... | 23/3 | 152 | 50x49 | |
| Period 3 oscillators | A collection of period 3 oscillators. | period3oscillator... | 23/3 | 6399 | 349x180 | |
| p40 glider gun | www.conwaylife.com/wiki/Period-40_glider_gun | period40glidergun... | 23/3 | 2416 | 226x220 | |
| Period-45 glider gun | A true period 45 glider gun found by Matthias Merzenich in 2010, with improve... | period45glidergun... | 23/3 | 132 | 48x40 | |
| p48 pi hassler | A period 48 oscillator found by Matthias Merzenich in June 2011. | period48pihassler... | 23/3 | 121 | 33x26 | |
| Period 4 oscillators | A collection of period 4 oscillators. | period4oscillator... | 23/3 | 6104 | 294x198 | |
| p50 glider gun variant by Dean Hickerson | period50glidergun... | 23/3 | 524 | 144x46 | ||
| p50 glider gun variant by David Bell | period50glidergun... | 23/3 | 652 | 119x94 | ||
| Period-59 glider gun | A true-period 59 glider gun. | period59gun.rle | 23/3 | 160697 | 4091x3082 | |
| Period 5 oscillators | A collection of period 5 oscillators. | period5oscillator... | 23/3 | 5277 | 311x154 | |
| Period-60 glider gun | The first true period 60 glider gun, found by Bill Gosper. | period60glidergun... | 23/3 | 113 | 39x27 | |
| Period-61 glider gun | The first true period-61 glider gun discovered in April 2016. | period61glidergun... | 23/3 | 5403 | 366x287 | |
| Period 6 oscillators | A collection of period 6 oscillators. | period6oscillator... | 23/3 | 8575 | 375x218 | |
| Period 7 and 8 oscillators | A collection of oscillators with period 7 and 8. | period7and8oscill... | 23/3 | 7275 | 491x161 | |
| Period 8 eater 3 | A period 8 oscillator. | period8eater3.rle | 23/3 | 56 | 20x20 | |
| Period 9 and 10 oscillators | A collection of oscillators with period 9 and 10. | period9and10oscil... | 23/3 | 9889 | 402x331 | |
| perp-greyship1 | 2c/4 perpendicular greyship: Hartmut Holzwart, 14 July 2005 | perp-greyship1.rle | 23/3 | 1191 | 67x103 | |
| perp-greyship2 | smaller 2c/4 perpendicular greyship: Hartmut Holzwart, 14 July 2005 | perp-greyship2.rle | 23/3 | 1132 | 58x99 | |
| perp-greyship3 | Perpendicular greyship in triangle form (-1,1,1/4) | perp-greyship3.rle | 23/3 | 1066 | 61x93 | |
| perp-greyship4 | perpendicular grey ship in triangle form (-1/10,1,-1/4) | perp-greyship4.rle | 23/3 | 1561 | 50x147 | |
| phase-shift | It is a fundamental challenge of oscillator construction to build | phase-shift.rle | 23/3 | 9124 | 839x497 | |
| Phoenix 1 | A period 2 oscillator found in December 1971. It is the smallest known phoenix. | phoenix1.rle | 23/3 | 12 | 8x8 | |
| Phoenix 1_synth | Glider synthesis of phoenix 1. | phoenix1_synth.rle | 23/3 | 94 | 70x14 | |
| Phoenix 1 extended | An extension of the period 2 phoenix 1 oscillator. | phoenix1extended.rle | 23/3 | 36 | 16x16 | |
| pi-blink-breeder1 | An unusual breeder (quadratic growth) pattern. | pi-blink-breeder1... | 23/3 | 4518 | 741x205 | |
| pi-blink-breeder2 | An unusual breeder (quadratic growth) pattern. | pi-blink-breeder2... | 23/3 | 5322 | 957x237 | |
| pi-fuse-puffer | Pi fuse burning puffer | pi-fuse-puffer.rle | 23/3 | 386 | 21x87 | |
| Pi calculator | Pattern to compute the decimal expansion of pi | picalculator.mc | 1189325 | 117573x155887 | ||
| Pi eater | Two blocks acting as a pi eater. Found in April 1992. | pieater.rle | 23/3 | 15 | 9x12 | |
| Pi eater 2 | A pi eater. | pieater2.rle | 23/3 | 21 | 23x4 | |
| Pi-heptomino | One of 108 heptominoes. | piheptomino.rle | 23/3 | 7 | 3x3 | |
| Pi-heptomino_synth | Glider syntheses of pi-heptominoes. | piheptomino_synth... | 23/3 | 336 | 147x68 | |
| Pincers_synth | Glider synthesis of pincers. | pincers_synth.rle | 23/3 | 192 | 80x98 | |
| Pinwheel | A period 4 oscillator. | pinwheel.rle | 23/3 | 35 | 12x12 | |
| pinwheel_synth | Glider synthesis of pinwheel | pinwheel_synth.rle | 23/3 | 2501 | 1406x529 | |
| Pi orbital | A period 168 oscillator found in August 1995. | piorbital.rle | 23/3 | 305 | 59x59 | |
| Pi portraitor | A period 32 oscillator that was found in 1984 or 1985. | piportraitor.rle | 23/3 | 119 | 24x24 | |
| Pipsquirter 1 | A period 6 pipsquirter oscillator found in November 1997. | pipsquirter1.rle | 23/3 | 50 | 15x11 | |
| pipsquirter1_synth | Glider synthesis of pipsquirter 1 | pipsquirter1_synt... | 23/3 | 5352 | 912x1530 | |
| Pipsquirter 1 as reflector | A pipsquirter 1 reflecting a glider. | pipsquirter1asref... | 23/3 | 79 | 22x17 | |
| Pipsquirter 2 | A period 7 pipsquirter oscillator. | pipsquirter2.rle | 23/3 | 89 | 13x22 | |
| Pipsquirter 2 reflector | Pipsquirter 2 acting as a reflector. | pipsquirter2refle... | 23/3 | 111 | 21x25 | |
| Pi ship 1 | A growing spaceship discovered in the early 1970s. | piship1.rle | 23/3 | 452 | 99x29 | |
| Piston | A period 2 oscillator found in 1971. | piston.rle | 23/3 | 23 | 11x5 | |
| piston_synth | Glider synthesis of piston | piston_synth.rle | 23/3 | 30 | 32x12 | |
| Pond | An 8-cell still life. | pond.rle | 23/3 | 8 | 4x4 | |
| Pond_synth | Glider syntheses of ponds. | pond_synth.rle | 23/3 | 98 | 105x36 | |
| Pond and dock | http://conwaylife.com/wiki/Pond_and_dock | pondanddock.rle | 23/3 | 18 | 8x6 | |
| Pond on pond | A 16-cell pseudo still life made up of two ponds. | pondonpond.rle | 23/3 | 16 | 9x4 | |
| Pond on pond_synth | Glider syntheses of pond on ponds. | pondonpond_synth.rle | 23/3 | 168 | 105x70 | |
| Pony express | http://conwaylife.com/wiki/Pony_express | ponyexpress.rle | 23/3 | 287 | 74x124 | |
| Popover | A period 32 oscillator that works by hassling a pi-heptomino. | popover.rle | 23/3 | 110 | 32x32 | |
| (p, p+8) prime calculator | (p,p+8) prime calculator based on the cousin prime calculator, which is based... | pp8primecalculato... | 23/3 | 8992 | 1022x618 | |
| P-pentomino | One of the 12 pentominoes. | ppentomino.rle | 23/3 | 5 | 2x3 | |
| Pre-beehive | A common parent of the beehive. | prebeehive.rle | 23/3 | 6 | 3x2 | |
| Pre-beehive_synth | Glider synthesis of pre-beehive. | prebeehive_synth.rle | 23/3 | 90 | 144x13 | |
| Pre-block | A block parent. | preblock.rle | 23/3 | 3 | 2x2 | |
| Pre-block_synth | Glider syntheses of the pre-block | preblock_synth.rle | 23/3 | 62 | 67x34 | |
| Pre-pulsar | A common predecessor of the pulsar. It duplicates itself after 15 generations... | prepulsar.rle | 23/3 | 16 | 9x3 | |
| Pre-pulsar hassler 55 | The smallest known period 55 oscillator, discovered on January 26, | prepulsarhassler5... | 23/3 | 174 | 43x27 | |
| Pre-pulsar predecessor | A common four-generation predecessor of the pre-pulsar. | prepulsarpredeces... | 23/3 | 8 | 9x2 | |
| Pre-pulsar shuttle 26 | The smallest known period 26 oscillator, discovered on January 18, | prepulsarshuttle2... | 23/3 | 200 | 37x37 | |
| Pre-pulsar shuttle 26 variant | A variant of the p26 pre-pulsar shuttle with a minimum | prepulsarshuttle2... | 23/3 | 144 | 39x39 | |
| Pre-pulsar shuttle 28 | A period 28 shuttle oscillator. | prepulsarshuttle2... | 23/3 | 54 | 22x16 | |
| Pre-pulsar shuttle 28 variant | (One of) the smallest known period 28 oscillator in terms of population | prepulsarshuttle2... | 23/3 | 53 | 22x17 | |
| Pre-pulsar shuttle 29 | A period 29 pre-pulsar shuttle oscillator, found in 1980. | prepulsarshuttle2... | 23/3 | 54 | 28x28 | |
| Pre-pulsar shuttle 29 v2 | A period 29 shuttle oscillator that involves a pre-pulsar being hassled. | prepulsarshuttle2... | 23/3 | 68 | 27x18 | |
| Pre-pulsar shuttle 29 v3 | A period 29 shuttle oscillator in which four pre-pulsars are hassled. | prepulsarshuttle2... | 23/3 | 232 | 39x39 | |
| Pre-pulsar shuttle 47 | A period 47 shuttle oscillator that works by hassling two pre-pulsars. | prepulsarshuttle4... | 23/3 | 84 | 31x30 | |
| Pre-pulsar shuttle 47 v2 | A period 47 oscillator. An extension of the classic period 47 pre-pulsar shut... | prepulsarshuttle4... | 23/3 | 212 | 79x30 | |
| Pre-pulsar shuttle 58 | Period-58 oscillator with a 50% smaller population | prepulsarshuttle5... | 23/3 | 104 | 25x27 | |
| Pre-pulsar spaceship | A period 30 orthogonal c/5 spaceship in which two spiders push a pr | prepulsarspaceshi... | 23/3 | 128 | 69x13 | |
| Pressure cooker | A period 3 oscillator found by the MIT group in September 1971. | pressurecooker.rle | 23/3 | 33 | 11x12 | |
| pressurecooker_synth | Glider synthesis of Pressure Cooker | pressurecooker_sy... | 23/3 | 2302 | 1175x644 | |
| Prime quadruplet calculator | rime quadruplet calculator created on July 28, 2009. Based on Dean | primequadrupletca... | 23/3 | 3300 | 460x294 | |
| Primer | A prime number sieve created in November 1991. | primer.rle | 23/3 | 2953 | 440x294 | |
| Protein | A period 3 oscillator found in November 1972. | protein.rle | 23/3 | 40 | 13x13 | |
| prototype-Geminoid | prototype-Geminoi... | / | 20640 | 212x950 | ||
| pseudo-p34-gun | Pseudo p34 gun based on two p102 Herschel factories. | pseudo-p34-gun.rle | 23/3 | 2445 | 243x157 | |
| Pseudo-barberpole | Found in August 1994. In terms of its minimum population of 15, this is the s... | pseudobarberpole.rle | 23/3 | 15 | 12x12 | |
| Pseudo-barberpole_synth | Glider syntheses of pseudo-barberpole. | pseudobarberpole_... | 23/3 | 458 | 150x110 | |
| Pseudo-barberpole on 36p22 | The smallest non-trivial period 110 oscillator | pseudobarberpoleo... | 23/3 | 51 | 35x14 | |
| Pseudo-barberpole on rattlesnake | The smallest known period-55 oscillator. | pseudobarberpoleo... | 23/3 | 49 | 13x22 | |
| Chris Cain | Constructed on or around 18 April 2016, | pseudoperiod14lgl... | 23/3 | 4772 | 335x230 | |
| puffer-2c5 | 2c/5 dirty puffer | puffer-2c5.rle | 23/3 | 384 | 112x75 | |
| puffer-train | Puffer train | puffer-train.rle | 23/3 | 22 | 5x18 | |
| Puffer 1 | An orthogonal, period-128 puffer and the first puffer to be discove | puffer1.rle | 23/3 | 44 | 27x7 | |
| Puffer 2 | An orthogonal period 140 c/2 puffer. The second puffer to be found. It uses t... | puffer2.rle | 23/3 | 22 | 18x5 | |
| Puffer 2_synth | Glider synthesis of puffer 2. | puffer2_synth.rle | 23/3 | 232 | 105x117 | |
| Pufferfish | An almost natural c/2 puffer, discovered in November 2014. | pufferfish.rle | 23/3 | 44 | 15x12 | |
| Pufferfish_synth | Synthesis of the pufferfish, based on a soup found by Richard Schank. | pufferfish_synth.rle | 23/3 | 75 | 59x51 | |
| Pufferfish breeder | MMS breeder based on the pufferfish, a semi-natural puffer. | pufferfishbreeder... | 23/3 | 3500 | 495x428 | |
| Pufferfish with a companion | A c/2 fuse for pufferfish's exhaust, found in December 2014. | pufferfishcompani... | 23/3 | 75 | 18x27 | |
| Pufferfish rake | A c/2 rake with no parts of periods 2 or 4, found in December 2014. | pufferfishrake.rle | 23/3 | 370 | 58x79 | |
| Pufferfish spaceship | The first c/2 spaceship with no parts of periods 2 or 4, found in December 2014. | pufferfishspacesh... | 23/3 | 235 | 53x37 | |
| pufferfishspaceship_synth.rle | Pufferfish spaceship synthesis by Chris Cain, February 2015 | pufferfishspacesh... | 23/3 | 300 | 456x499 | |
| Pulsar | A period 3 oscillator. Despite its size, this is the fourth most common oscil... | pulsar.rle | 23/3 | 48 | 13x13 | |
| Pulsar_synth | Glider synthesis of pulsars. | pulsar_synth.rle | 23/3 | 1079 | 152x118 | |
| pulsarpixeldisplay8x2 | Pulsar Pixel Bit Map Display | pulsarpixeldispla... | 23/3 | 118753 | 7170x3935 | |
| Pulsar quadrant | A period 3 oscillator found in July 1973. | pulsarquadrant.rle | 23/3 | 18 | 8x8 | |
| Pulsar quadrant_synth | Glider synthesis of pulsar quadrant. | pulsarquadrant_sy... | 23/3 | 102 | 78x25 | |
| Pushalong 1 | An orthogonal period 4 c/2 pushalong that attaches to the front of a middlewe... | pushalong1.rle | 23/3 | 31 | 11x12 | |
| pushalong1_synth | XRLE Pos=0,0 | pushalong1_synth.rle | 23/3 | 878 | 592x47 | |
| puzzle.mc | At 2.3e12 (www.tweedledum.com/rwg/gottspuzz.png) this pattern seems | puzzle.mc | 40 | 127x28 | ||
| Python siamese carrier | An 11-bit still life. | pythonsiamesecarr... | 23/3 | 11 | 4x8 | |
| Python siamese snake | A small 11-bit still life. | pythonsiamesesnak... | 23/3 | 11 | 3x8 | |
| Q-pentomino | One of the 12 pentominoes. | qpentomino.rle | 23/3 | 5 | 4x2 | |
| Quad | A period 2 oscillator that was found in April 1971. | quad.rle | 23/3 | 16 | 6x6 | |
| Quad_synth | Glider synthesis of quad. | quad_synth.rle | 23/3 | 96 | 37x28 | |
| Quadfuse | An orthogonal period 5 lightspeed modification of the ants fuse that has a bu... | quadfuse.rle | 23/3 | 4441 | 2742x13 | |
| Quadpole | The barberpole of length 4 and thus a period 2 oscillator. | quadpole.rle | 23/3 | 10 | 7x7 | |
| Quadpole_synth | Glider synthesis of quadpole. | quadpole_synth.rle | 23/3 | 112 | 68x54 | |
| Quad pseudo still life | A 34-cell pseudo still life that can be decomposed into four stable subpatter... | quadpseudostillli... | 23/3 | 34 | 11x9 | |
| quadraticsawtooth.rle | Constructed by Martin Grant on 7 May 2015, based on a design by | quadraticsawtooth... | 23/3 | 3164 | 785x785 | |
| quadrilateral_greyship | Quadrilateral greyship with slope of 5/9 | quadrilateral_gre... | 23/3 | 4016 | 140x115 | |
| Quadruple burloaferimeter | A C4-symmetric quadruple burloaferimeter variant found by Dannyu NDos [David]... | quadrupleburloafe... | 23/3 | 72 | 16x16 | |
| Quadruple burloaferimeter 2 | A C4_4-symmetric quadruple burloaferimeter variant found by Apple Bottom on C... | quadrupleburloafe... | 23/3 | 80 | 16x16 | |
| Quasar | A period 3 oscillator found in August 1971 that is quite similar to | quasar.rle | 23/3 | 144 | 29x29 | |
| Quattuordecapole | The barberpole of length 14. | quattuordecapole.rle | 23/3 | 20 | 17x17 | |
| queen-bee-turn | Demonstration of a queen bee shuttle turning reaction | queen-bee-turn.rle | 23/3 | 1833 | 155x155 | |
| Queen bee | A pattern that lays a beehive on either side of itself before exploding. | queenbee.rle | 23/3 | 12 | 7x5 | |
| Queen bee_synth | Glider synthesis of queen bee. | queenbee_synth.rle | 23/3 | 110 | 110x84 | |
| Queen bee loop | Period 30 oscillator originally found in 1970, similar to the queen | queenbeeloop.rle | 23/3 | 48 | 24x24 | |
| Queen bee shuttle | A period 30 oscillator. | queenbeeshuttle.rle | 23/3 | 20 | 22x7 | |
| Queen bee shuttle_synth | Glider synthesis of queen bee shuttle. | queenbeeshuttle_s... | 23/3 | 340 | 157x98 | |
| Queen bee shuttle pi predecessor | A queen bee shuttle predecessor found in April 1992. | queenbeeshuttlepi... | 23/3 | 21 | 35x7 | |
| Queen bee turner | A period 88 oscillator created on March 21, 1996. | queenbeeturner.rle | 23/3 | 1762 | 155x155 | |
| Queen bee turning reaction 1 | A reaction in which two gliders collide with a queen bee, causing i | queenbeeturningre... | 23/3 | 22 | 10x11 | |
| Quindecapole | The barberpole of length 15. | quindecapole.rle | 23/3 | 21 | 18x18 | |
| R2D2 | A period 8 oscillator. | r2d2.rle | 23/3 | 29 | 11x10 | |
| rabbits-relation-17423 | Rabbits relative. | rabbits-relation-... | 23/3 | 10 | 6x6 | |
| rabbits-relation-17465 | Rabbits relative. | rabbits-relation-... | 23/3 | 11 | 6x4 | |
| Rabbits | A methuselah with lifespan 17331. | rabbits.rle | 23/3 | 9 | 7x3 | |
| Rabbits_synth | Glider synthesis of rabbits. | rabbits_synth.rle | 23/3 | 44 | 48x13 | |
| Racetrack | http://conwaylife.com/wiki/Racetrack | racetrack.rle | 23/3 | 12 | 6x4 | |
| Racetrack and ortho-beacon | http://conwaylife.com/wiki/Racetrack_and_ortho-beacon | racetrackandortho... | 23/3 | 18 | 7x9 | |
| Radial pseudo-barberpole | A radially symmetric relative of the pseudo-barberpole | radialpseudobarbe... | 23/3 | 28 | 13x13 | |
| rake-breeder | Rake puffer -- a type-MMM breeder | rake-breeder.rle | 23/3 | 3149 | 398x405 | |
| random | Random-looking still life, created by Gabriel Nivasch. | random.rle | 23/3 | 4203 | 98x98 | |
| $rats | A period 6 oscillator found in 1972. | rats.rle | 23/3 | 32 | 12x11 | |
| $rats_synth | Glider syntheses of $rats. | rats_synth.rle | 23/3 | 1353 | 154x116 | |
| Rattlesnake | http://conwaylife.com/wiki/Rattlesnake | rattlesnake.rle | 23/3 | 33 | 13x15 | |
| rattlesnake_synth | Glider synthesis of rattlesnake | rattlesnake_synth... | 23/3 | 545 | 834x80 | |
| R-bee and snake | A 13-cell still life. | rbeeandsnake.rle | 23/3 | 13 | 5x6 | |
| R-bee and snake_synth | A 7-glider synthesis of R-bee and snake | rbeeandsnake_synt... | 23/3 | 48 | 28x21 | |
| Rectifier | A 180-degree stable reflector with a recovery time of 106 generatio | rectifier.rle | 23/3 | 64 | 41x33 | |
| reflectors | Fast, low-period glider reflectors. The color-changing reflectors, | reflectors.rle | 23/3 | 6293 | 528x416 | |
| reflectors2 | A selection of 90-degree glider reflectors. | reflectors2.rle | 23/3 | 4764 | 583x289 | |
| Replicator | A replicator for the HighLife rule (23/36). | replicator.rle | 23/36 | 12 | 5x5 | |
| Replicator predecessor | A 3-generation predecessor of the HighLife replicator. | replicatorpredece... | 23/36 | 6 | 4x4 | |
| Revolver | A period 2 oscillator and flipper. | revolver.rle | 23/3 | 32 | 14x8 | |
| Rich's p16 | http://conwaylife.com/wiki/Rich%27s_p16 | richsp16.rle | 23/3 | 34 | 13x10 | |
| Richsp16_synth | Glider synthesis of Rich's p16 | richsp16_synth.rle | 23/3 | 166 | 108x45 | |
| Riley's breeder | A small MMS breeder, discovered in July 2006. | rileysbreeder.rle | 23/3 | 38 | 135x41 | |
| Ring of fire | A large period 2 oscillator. It is a muttering moat that was found in Septemb... | ringoffire.rle | 23/3 | 158 | 34x30 | |
| R-loaf | A small induction coil. | rloaf.rle | 23/3 | 8 | 4x4 | |
| R-mango and house | http://conwaylife.com/wiki/R-mango_and_house | rmangoandhouse.rle | 23/3 | 18 | 8x6 | |
| Rotated C | http://conwaylife.com/wiki/Rotated_C | rotatedc.rle | 23/3 | 18 | 7x7 | |
| Roteightor | A period 8 oscillator that was found in 1972. | roteightor.rle | 23/3 | 39 | 14x14 | |
| roteightor_synth | Glider synthesis of Roteightor | roteightor_synth.rle | 23/3 | 123 | 60x62 | |
| roteightor extension | An extension of roteightor | roteightorextensi... | 23/3 | 147 | 32x32 | |
| R-pentomino | A methuselah with lifespan 1103. | rpentomino.rle | 23/3 | 5 | 3x3 | |
| R-pentomino_synth | Glider synthesis of R-pentominoes. | rpentomino_synth.rle | 23/3 | 315 | 113x108 | |
| ruler.mc | This produces groups of LWSSs headed west, with gaps of fixed size | ruler.mc | 997 | 169x116 | ||
| Rumbling river 1 | A period 3 oscillator. A rumbling river that was found in November 1994. | rumblingriver1.rle | 23/3 | 190 | 49x12 | |
| Sailboat | A period 16 oscillator made of a boat that is hassled by a Kok's galaxy, a fi... | sailboat.rle | 23/3 | 113 | 29x25 | |
| sawtooth-cordership1 | 4-engine Cordership with minimum population of 134 | sawtooth-cordersh... | 23/3 | 134 | 76x76 | |
| sawtooth-cordership2 | 4-engine Cordership with minimum population of 136 | sawtooth-cordersh... | 23/3 | 136 | 77x74 | |
| Sawtooth 1 | The first sawtooth ever constructed, it was built on April 10, 1991 | sawtooth1.rle | 23/3 | 983 | 173x114 | |
| Sawtooth 1163 | An orthogonal sawtooth with external timing and expansion factor roughly equa... | sawtooth1163.rle | 23/3 | 1249 | 150x219 | |
| Sawtooth 177 | A sawtooth with minimal repeating population of 177. | sawtooth177.rle | 23/3 | 233 | 68x76 | |
| sawtooth181.rle | Sawtooth with minimum population 181, found on 28 April 2015, | sawtooth181.rle | 23/3 | 181 | 78x87 | |
| Sawtooth 1846 | A sawtooth with expansion factor 25 that was found on August 26, 1992. | sawtooth1846.rle | 23/3 | 1462 | 370x118 | |
| sawtooth2 | Sawtooth pattern with minimum repeating population of 262, based | sawtooth2.rle | 23/3 | 262 | 223x161 | |
| sawtooth201 | slightly smaller pop-201 sawtooth | sawtooth201.rle | 23/3 | 201 | 55x79 | |
| Sawtooth 260 | The smallest sawtooth in terms of its minimum repeating population | sawtooth260.rle | 23/3 | 260 | 154x100 | |
| Sawtooth 262 | A sawtooth created on July 9, 2005 with a minimum repeating | sawtooth262.rle | 23/3 | 262 | 223x161 | |
| Sawtooth 269 | A sawtooth created on July 7, 2005 that has a minimum repeating population of... | sawtooth269.rle | 23/3 | 269 | 151x107 | |
| sawtooth3-moving | Moving sawtooth with repeating minimum population of 1239 | sawtooth3-moving.rle | 23/3 | 1239 | 128x173 | |
| Sawtooth 362 | A diagonal sawtooth with minimum repeating population 362 that was | sawtooth362.rle | 23/3 | 418 | 168x306 | |
| Sawtooth 562 | An orthogonal sawtooth with expansion factor 6. It was found on August 14, 1992. | sawtooth562.rle | 23/3 | 415 | 114x74 | |
| Sawtooth 633 | A sawtooth pattern found on May 15, 1992. It has a minimum repeating populati... | sawtooth633.rle | 23/3 | 559 | 272x69 | |
| sawtooth6b | May be the smallest known sawtooth pattern by population. | sawtooth6b.rle | 23/3 | 278 | 140x90 | |
| Schick engine | An orthogonal period 12 c/2 tagalong found in 1972. | schickengine.rle | 23/3 | 39 | 20x11 | |
| Schick engine_synth | Glider synthesis of Schick engine. | schickengine_synt... | 23/3 | 229 | 126x76 | |
| Scorpion | A 16-cell still life. | scorpion.rle | 23/3 | 16 | 7x6 | |
| Scorpion_synth | Glider syntheses of scorpion | scorpion_synth.rle | 23/3 | 82 | 35x47 | |
| Scot's p5 | A period 5 oscillator found in 2008. | scotsp5.rle | 23/3 | 28 | 13x7 | |
| Scrubber | A period 2 oscillator found in 1971. | scrubber.rle | 23/3 | 28 | 11x11 | |
| Scrubber_synth | A 10-glider synthesis of scrubber | scrubber_synth.rle | 23/3 | 78 | 50x35 | |
| Scrubber with blocks | scrubber_with_blo... | 23/3 | 28 | 11x11 | ||
| Seal | The first c/6 diagonal spaceship to be found. Has period 6. | seal.rle | 23/3 | 170 | 34x35 | |
| Seal tagalong | Seal tagalong discovered 22 September 2005 | sealtagalong.rle | 23/3 | 306 | 55x55 | |
| Semi-snark | A Spartan conduit, reflecting every other glider, found in July 2013. | semisnark.rle | 23/3 | 41 | 19x19 | |
| Sesquihat | A 13-cell still life that is roughly halfway between a hat and twin hat. | sesquihat.rle | 23/3 | 13 | 7x5 | |
| Sesquihat_synth | Glider syntheses of sesquihat | sesquihat_synth.rle | 23/3 | 332 | 111x103 | |
| Shield Bug | http://conwaylife.com/wiki/Shield_bug | shieldbug.mc | B3/S23 | 3600626 | 934856x290486 | |
| Shillelagh | A common 8-cell still life. | shillelagh.rle | 23/3 | 8 | 5x3 | |
| Shillelagh_synth | Glider syntheses of shillelaghs. | shillelagh_synth.rle | 23/3 | 259 | 154x118 | |
| Ship | A common 6-cell still life. | ship.rle | 23/3 | 6 | 3x3 | |
| Ship_synth | Glider synthesis of ships. | ship_synth.rle | 23/3 | 282 | 148x104 | |
| Ship in a bottle | A period 16 oscillator found in August 1994. | shipinabottle.rle | 23/3 | 86 | 18x18 | |
| Ship maker | A period 4 diagonal lightspeed fuse that makes ships as it burns. | shipmaker.rle | 23/3 | 47 | 41x40 | |
| Ship on bipole | http://conwaylife.com/wiki/Ship_on_bipole | shiponbipole.rle | 23/3 | 14 | 8x8 | |
| Ship on bipole_synth | Glider syntheses of ship on bipole | shiponbipole_synt... | 23/3 | 642 | 159x134 | |
| Ship on long boat | A 13-cell still life. | shiponlongboat.rle | 23/3 | 13 | 7x7 | |
| Ship on long boat_synth | Glider syntheses of ship on long boat | shiponlongboat_sy... | 23/3 | 349 | 148x82 | |
| Ship on quadpole | A period 2 oscillator made up of a ship diagonally touching a quadpole. | shiponquadpole.rle | 23/3 | 16 | 10x10 | |
| Ship on quadpole_synth | Glider syntheses of ship on quadpole | shiponquadpole_sy... | 23/3 | 347 | 148x88 | |
| Ship-tie | A simple 12-cell still life. | shiptie.rle | 23/3 | 12 | 6x6 | |
| Ship-tie_synth | Glider syntheses of ship-ties. | shiptie_synth.rle | 23/3 | 379 | 151x116 | |
| short-thin | From thin.rle (left side of pattern): | short-thin.rle | 23/3 | 1073 | 376x114 | |
| Short keys | A period 3 oscillator. | shortkeys.rle | 23/3 | 16 | 12x4 | |
| Short keys_synth | A 10-glider synthesis of short keys | shortkeys_synth.rle | 23/3 | 68 | 55x31 | |
| Shuriken | http://conwaylife.com/wiki/Shuriken | shuriken.rle | 23/3 | 20 | 7x7 | |
| shuriken_synth | shuriken_synth.rle | 23/3 | 408 | 75x82 | ||
| Sidecar | An orthogonal period 4 c/2 tagalong for the heavyweight spaceship that was fo... | sidecar.rle | 23/3 | 24 | 8x10 | |
| Sidecar_synth | Glider synthesis of sidecar. | sidecar_synth.rle | 23/3 | 72 | 65x14 | |
| Sidecar eater | A pattern that is capable of eating a sidecar. | sidecareater.rle | 23/3 | 43 | 18x14 | |
| Sidecar gun | A true period 60 sidecar gun that was created on March 7, 2000. | sidecargun.rle | 23/3 | 1307 | 213x142 | |
| Sidewalk | A 14-cell still life. | sidewalk.rle | 23/3 | 14 | 6x5 | |
| Sidewalk_synth | Glider syntheses of sidewalk. | sidewalk_synth.rle | 23/3 | 68 | 72x8 | |
| Siesta | A period 5 oscillator found in 1973. | siesta.rle | 23/3 | 50 | 16x12 | |
| signal-turns-and-fizzles | signal-turns-and-... | 23/3 | 12601 | 578x336 | ||
| Silver's p5 | A period 5 oscillator found in February 2000. | silversp5.rle | 23/3 | 17 | 11x7 | |
| Silver's p5_synth | Glider syntheses of Silver's p5 | silversp5_synth.rle | 23/3 | 213 | 74x111 | |
| silversreflector | 497-tick stable reflector | silversreflector.rle | 23/3 | 131 | 194x219 | |
| Simkin glider gun | A true period 120 glider gun, found on April 28, 2015. | simkinglidergun.rle | 23/3 | 36 | 33x21 | |
| single-channel-spiral-growth | Spiral growth in Conway's Life using single-channel Snark recipe. | single-channel-sp... | 23/3 | 19362 | 1966x2007 | |
| Six Ls | A period 3 oscillator that has the same rotor as loading dock. | sixls.rle | 23/3 | 24 | 7x8 | |
| Sixty-nine | A period 4 oscillator found in October 1978. | sixtynine.rle | 23/3 | 69 | 21x21 | |
| Skewed pre-pulsar | This pattern evolves similarly to a pre-pulsar, but it is unstable. | skewedprepulsar.rle | 23/3 | 16 | 9x5 | |
| Skewed quad | A period 2 oscillator and muttering moat. | skewedquad.rle | 23/3 | 16 | 7x7 | |
| Skewed quad_synth | Glider synthesis of skewed quad. | skewedquad_synth.rle | 23/3 | 66 | 55x43 | |
| Skewed traffic light | A period 3 oscillator found in August 1989. | skewedtrafficligh... | 23/3 | 70 | 24x22 | |
| Skew R-bees | http://conwaylife.com/wiki/Skew_R-bees | skewrbees.rle | 23/3 | 14 | 7x6 | |
| slide-breeder | Breeder using slide-gun technology (Slide-o-04b-060 and | slide-breeder.rle | 23/3 | 23237 | 2393x4182 | |
| Slide gun | A diagonal slide gun constructed on September 3, 1999 | slidegun.rle | 23/3 | 459 | 109x59 | |
| slow-salvo-MWSS-oscillator | Packed slow-salvo construction of period 3600 oscillator consisting | slow-salvo-MWSS-o... | 23/3 | 10849 | 12970x13293 | |
| slow-salvo-eater-recipes | Four results from Paul Chapman's 'Glue' search program: | slow-salvo-eater-... | 23/3 | 311 | 1361x1434 | |
| Slow puffer 1 | An orthogonal period 744 c/2 puffer that outputs a single blinker once every ... | slowpuffer1.rle | 23/3 | 281 | 82x73 | |
| Slow puffer 2 | An orthogonal period 240 c/2 puffer that moves fast but creates relatively li... | slowpuffer2.rle | 23/3 | 97 | 22x21 | |
| rake based on Slow Puffer 2 | slowpuffer2rake.rle | 23/3 | 216 | 182x78 | ||
| 487-tick_reflector | A stable glider reflector with a repeat time of 487, discovered on April 12, ... | slr487.rle | 23/3 | 291 | 134x95 | |
| Smaller newshuttle | The second period 28 oscillator to be found | smallernewshuttle... | 23/3 | 102 | 35x20 | |
| Period-61 glider gun | A period-61 glider gun discovered in April 2016. | smallerp61gun.rle | 23/3 | 2175 | 204x185 | |
| smallest-low-period | Shows spaceships of all periods < 32 for which examples are known. | smallest-low-peri... | 23/3 | 2115 | 294x272 | |
| Small lake | A 20-cell still life. | smalllake.rle | 23/3 | 20 | 9x9 | |
| Small lake_synth | Glider syntheses of small lake | smalllake_synth.rle | 23/3 | 241 | 84x54 | |
| Small lake variants | Two variants of the Small lake. | smalllakevariants... | 23/3 | 47 | 21x9 | |
| Small still lifes | The 100 smallest still lifes. | smallstilllifes.rle | 23/3 | 989 | 273x93 | |
| Smiley | A period 8 oscillator found in July 1994. | smiley.rle | 23/3 | 17 | 7x7 | |
| Smiley_synth | A 28-glider synthesis of smiley | smiley_synth.rle | 23/3 | 405 | 132x86 | |
| Snacker | A period 9 oscillator consisting of a pentadecathlon with stabilizers that fo... | snacker.rle | 23/3 | 40 | 20x11 | |
| Snacker 2 | A period 9 oscillator in which two pentadecathlons with stabilizers which for... | snacker2.rle | 23/3 | 60 | 34x11 | |
| Snacker_synth | Glider synthesis of snacker. | snacker_synth.rle | 23/3 | 380 | 150x137 | |
| Snacker on 38P7.2 | A small non-trivial period 63 oscillator | snackeron38p7.2.rle | 23/3 | 78 | 24x20 | |
| Snail | The first c/5 orthogonal spaceship to be discovered. Has period 5. Found in J... | snail.rle | 23/3 | 128 | 38x21 | |
| Snake | A common 6-cell still life. | snake.rle | 23/3 | 6 | 4x2 | |
| Snake_synth | Glider syntheses of snakes. | snake_synth.rle | 23/3 | 104 | 98x74 | |
| Snake bridge snake | A 12-cell still life composed of two diagonally-touching snakes. | snakebridgesnake.rle | 23/3 | 12 | 6x6 | |
| Snake bridge snake_synth | Glider syntheses of snake bridge snake | snakebridgesnake_... | 23/3 | 154 | 109x45 | |
| Snake dance | A period 3 oscillator found in May 1972. | snakedance.rle | 23/3 | 32 | 9x9 | |
| Snake pit | A period 2 oscillator with the same rotor as fore and back. | snakepit.rle | 23/3 | 26 | 7x7 | |
| Snake pit 2 | A period 3 oscillator. | snakepit2.rle | 23/3 | 36 | 11x11 | |
| Snake pit 2_synth | Glider synthesis of snake pit 2. | snakepit2_synth.rle | 23/3 | 66 | 36x21 | |
| Snake siamese snake | A 10-cell still life composed of two snakes. | snakesiamesesnake... | 23/3 | 10 | 7x2 | |
| Snake siamese snake_synth | Glider synthesis of snake siamese snake. | snakesiamesesnake... | 23/3 | 335 | 141x117 | |
| Snake with feather | A small 11-bit still life. | snakewithfeather.rle | 23/3 | 11 | 7x4 | |
| Snark | The fastest and smallest 90-degree stable glider reflector (as of | snark.rle | 23/3 | 57 | 17x23 | |
| Snark_synth | Continuous synthesis of the snark, with improvements by Mark Niemiec. | snark_synth.rle | 23/3 | 185 | 152x148 | |
| snarkcatalystvariants | four Snark catalyst variants | snarkcatalystvari... | 23/3 | 212 | 51x52 | |
| Snorkel loop | A 12-cell still life. | snorkelloop.rle | 23/3 | 12 | 6x5 | |
| Snorkel loop_synth | A six-glider synthesis of snorkel loop | snorkelloop_synth... | 23/3 | 42 | 33x17 | |
| Sombreros | A period 6 oscillator found in 1972. If the two halves are moved closer by 3 ... | sombreros.rle | 23/3 | 50 | 18x11 | |
| spacefiller | A small spacefiller. | spacefiller.rle | 23/3 | 200 | 49x26 | |
| Spacefiller 1 | A spacefiller that once was the smallest known. | spacefiller1.rle | 23/3 | 206 | 29x43 | |
| Spacefiller 2 | A spacefiller that fills space with zebra stripes. | spacefiller2.rle | 23/3 | 187 | 25x35 | |
| Space rake | An orthogonal period 20 c/2 forward glider rake. | spacerake.rle | 23/3 | 65 | 22x19 | |
| spaceship-types | A period p spaceship which displaces itself (m,n) during its | spaceship-types.rle | 23/3 | 1977 | 400x368 | |
| Spaghetti monster | The first 3c/7 orthogonal spaceship to be discovered. | spaghettimonster.rle | 23/3 | 702 | 27x137 | |
| Spark coil | A period 2 oscillator found in 1971. | sparkcoil.rle | 23/3 | 18 | 8x5 | |
| Spark coil_synth | Glider syntheses of spark coils. | sparkcoil_synth.rle | 23/3 | 76 | 75x8 | |
| Sparky | An orthogonal c/4 period 4 tagalong. | sparky.rle | 23/3 | 101 | 30x11 | |
| S-pentomino | One of the 12 pentominoes. | spentomino.rle | 23/3 | 5 | 4x2 | |
| spider-rake | p360 Spider Rake | spider-rake.rle | 23/3 | 1256 | 500x127 | |
| Spider | A c/5 period 5 orthogonal spaceship found in April 1997. It is the | spider.rle | 23/3 | 58 | 27x8 | |
| Spiral | A 20-cell still life consisting of a tub with four tails. | spiral.rle | 23/3 | 20 | 7x7 | |
| Squaredance | A period 2 agar. | squaredance.rle | 23/3 | 400 | 40x40 | |
| ss-eaters | Spaceship eaters. | ss-eaters.rle | 23/3 | 150 | 89x34 | |
| Stairstep hexomino | One of 35 hexominoes. It is a predecessor of the blockade. | stairstephexomino... | 23/3 | 6 | 4x3 | |
| Star | A period 3 oscillator found in February 1993. | star.rle | 23/3 | 24 | 11x11 | |
| Star_synth | A 20-glider synthesis of the period 3 star | star_synth.rle | 23/3 | 136 | 85x67 | |
| Star gate | A pattern that advances lightweight spaceships by 30 cells in the c | stargate.rle | 23/3 | 1099 | 155x126 | |
| Star gate with lightweight spaceships | A pattern that advances lightweight spaceships by 30 cells in the c | stargatewithlight... | 23/3 | 1159 | 155x133 | |
| Star with blocks | A period 3 oscillator that is a modification of star. | starwithblocks.rle | 23/3 | 52 | 11x11 | |
| Statorless p5 | Found in June 2016, using Nicolay Beluchenko's version of WLS | statorlessp5.rle | 23/3 | 68 | 15x14 | |
| Stillater | A period 3 oscillator found in September 1985. | stillater.rle | 23/3 | 22 | 8x8 | |
| stillater_synth | Glider synthesis of stillater | stillater_synth.rle | 23/3 | 83 | 104x34 | |
| Still lifes | A collection of small still lifes. | stilllifes.rle | 23/3 | 876 | 108x76 | |
| Still life tagalong | An orthogonal c/2 period 4 spaceship that pulls a pond. | stilllifetagalong... | 23/3 | 64 | 19x17 | |
| stripey | Stripey still life, created by Gabriel Nivasch. | stripey.rle | 23/3 | 2004 | 66x65 | |
| Spartan universal computer-constructor | http://conwaylife.com/wiki/Spartan_universal_computer-constructor | succ.mc | B3/S23 | 482043 | 84625x73461 | |
| Superfountain | A period 4 sparker with a lone spark separated from the rest of the | superfountain.rle | 23/3 | 278 | 46x25 | |
| Super loaf | http://conwaylife.com/wiki/Super_loaf | superloaf.rle | 23/3 | 17 | 7x7 | |
| Super mango | A 15-bit still life. | supermango.rle | 23/3 | 15 | 6x7 | |
| Surprise | A period 3 oscillator found in November 1972. | surprise.rle | 23/3 | 36 | 10x9 | |
| Swan | A diagonal period 4 c/4 spaceship that produces some useful sparks. | swan.rle | 23/3 | 49 | 24x12 | |
| Swan boatstretcher | A boatstretcher based on Tim Coe's swan, found on February 20, 1996 | swanboatstretcher... | 23/3 | 65 | 24x15 | |
| Swan weld goose | A swan and a Canada goose that have been welded together. | swanweldgoose.rle | 23/3 | 82 | 34x21 | |
| swimmer2 | P3450 'swimmer' [switch engine doing laps in a lane made of boats] | swimmer2.rle | 23/3 | 2145 | 368x392 | |
| Swine | extensible p5 oscillator; name short for Scot's p5 With INsErt. | swine.rle | 23/3 | 86 | 37x10 | |
| switch-engine-breeder-MR | 5 beehives and 75 blocks produce a quadratically expanding | switch-engine-bre... | 23/3 | 335 | 221x173 | |
| switch-engine-breeder | A puffer train that creates switch engines. | switch-engine-bre... | 23/3 | 707 | 85x164 | |
| Switch engine ping-pong | The smallest known pattern that exhibits quadratic population | switch-engine-pin... | 23/3 | 23 | 210515x183739 | |
| Switch engine | A methuselah with lifespan 3911 that can be used to make c/12 diagonal puffer... | switchengine.rle | 23/3 | 8 | 6x4 | |
| switchengine_synth | 3-glider synthesis of an unstabilized switch engine | switchengine_synt... | 23/3 | 15 | 14x8 | |
| Switch engine ping-pong | The smallest known pattern, that exhibits quadratic population | switchenginepingp... | 23/3 | 23 | 210515x183739 | |
| Switchwave | http://conwaylife.com/wiki/Switchwave | switchwave.rle | 23/3 | 78 | 78x78 | |
| Symmetric scorpion | A 16-cell still life. | symmetricscorpion... | 23/3 | 16 | 7x5 | |
| syntheses-of-c2-spaceships | Syntheses of some c/2 spaceships for which glider recipes are known | syntheses-of-c2-s... | 23/3 | 1195 | 988x955 | |
| Syringe | A fast and compact glider-to-Herschel converter. | syringeGtoH.rle | 23/3 | 66 | 24x35 | |
| Syringe | A fast and compact glider-to-Herschel converter. | syringeGtoH_oldan... | 23/3 | 66 | 24x35 | |
| syringeGtoH_synth | Glider synthesis of syringe | syringeGtoH_synth... | 23/3 | 375 | 301x274 | |
| Table | A simple induction coil. | table.rle | 23/3 | 6 | 4x2 | |
| Table and dock | http://conwaylife.com/wiki/Table_and_dock | tableanddock.rle | 23/3 | 16 | 6x6 | |
| Table on table | A 12-cell still life made up of two tables. | tableontable.rle | 23/3 | 12 | 4x5 | |
| Table on table_synth | Glider syntheses of table on tables. | tableontable_synt... | 23/3 | 284 | 118x103 | |
| Tail | A tetromino often attached to still lifes to create larger still li | tail.rle | 23/3 | 4 | 2x3 | |
| Tanner's p46 | A period 46 oscillator discovered by Tanner Jacobi in October 2017. | tannersp46.rle | 23/3 | 41 | 13x26 | |
| tannersp46_gun | A period 46 gun based on Tanner's p46 and the twin bees shuttle. | tannersp46_gun.rle | 111 | 31x44 | ||
| tannersp46_synth | 19-glider synthesis of Tanner's p46 | tannersp46_synth.rle | 23/3 | 360 | 146x88 | |
| Teardrop | An induction coil that evolves into two beehives after 20 generations. | teardrop.rle | 23/3 | 9 | 4x4 | |
| Teardrop_synth | Syntheses of teardrops. | teardrop_synth.rle | 23/3 | 130 | 108x49 | |
| Technician | A period 5 oscillator found in January 1973. | technician.rle | 23/3 | 33 | 11x12 | |
| Teeth | A quadratic growth pattern found in March 2000. | teeth.rle | 23/3 | 65 | 472x127 | |
| temp-pulsars-big-s | Runs for 21035 gens. Initial pop = 32. Final pop = 2570. | temp-pulsars-big-... | 23/3 | 32 | 8x8 | |
| Test tube baby | A period 2 oscillator. | testtubebaby.rle | 23/3 | 14 | 8x5 | |
| Test tube baby_synth | Glider syntheses of test tube baby | testtubebaby_synt... | 23/3 | 482 | 140x92 | |
| Tethered rake | A switch engine-based tethered rake | tetheredrake.rle | 23/3 | 679 | 134x92 | |
| Tetraloaf I | http://conwaylife.com/wiki/Tetraloaf_I | tetraloaf1.rle | 23/3 | 28 | 10x10 | |
| Tetraplets | The 22 distinct tetraplets. | tetraplets.rle | 23/3 | 88 | 54x31 | |
| Tetrominoes | A collection of all five tetrominoes. | tetrominoes.rle | 23/3 | 20 | 39x2 | |
| Thumb 1 | A period 9 thumb oscillator found in October 1998. | thumb1.rle | 23/3 | 36 | 13x9 | |
| Thumb 2 | A thumb sparker found in June 2000. | thumb2.rle | 23/3 | 38 | 11x11 | |
| Thunderbird | A methuselah with lifespan 243. | thunderbird.rle | 23/3 | 6 | 3x5 | |
| Thunderbird_synth | Glider syntheses of thunderbirds. | thunderbird_synth... | 23/3 | 33 | 48x11 | |
| Time bomb | An infinite-growth mechanism that is a predecessor of the diagonal period 384... | timebomb.rle | 23/3 | 17 | 15x6 | |
| Titanic toroidal traveler | A superstring. | titanictoroidaltr... | 23/3 | 117 | 78x2 | |
| Tlog(log(t)) growth | A pattern that exhibits O(t log(log(t))) population growth, found by Alexey N... | tloglogtgrowth.rle | 23/3 | 8602 | 1581x373 | |
| tlog(t) growth | An infinitely growing pattern that has growth that is O(tlog(t)). F | tlogtgrowth.rle | 23/3 | 5685 | 635x377 | |
| T-nosed p4 | A period 4 oscillator found in October 1989. | tnosedp4.rle | 23/3 | 31 | 11x10 | |
| T-nosed p4 on 48P31 | A small period 124 oscillator. | tnosedp4on48p31.rle | 23/3 | 79 | 24x30 | |
| T-nosed p4 on 56P27 | The smallest known period-108 oscillator. | tnosedp4on56p27.rle | 23/3 | 87 | 34x32 | |
| T-nosed p6 | A period 6 oscillator found in September 1994. | tnosedp6.rle | 23/3 | 40 | 15x11 | |
| Toad | A period 2 oscillator. The second most common oscillator (after the blinker). | toad.rle | 23/3 | 6 | 4x2 | |
| Toad_synth | Glider synthesis of toads. | toad_synth.rle | 23/3 | 509 | 153x115 | |
| Toad flipper | A period 60 oscillator in which a toad gets flipped repeatedly by | toadflipper.rle | 23/3 | 30 | 18x10 | |
| Toad sucker | A period 60 oscillator that shifts a toad by applying domino sparks to it. | toadsucker.rle | 23/3 | 30 | 18x11 | |
| Toaster | A period 5 oscillator found in April 1992 that produces sparks similar to tho... | toaster.rle | 23/3 | 54 | 11x12 | |
| Total aperiodic | A pattern that evolves in such a way that no cell in the plane is e | totalaperiodic.rle | 23/3 | 182 | 59x57 | |
| totalperiodic.mc | Total periodic, by Bill Gosper. | totalperiodic.mc | B3/S23 | 196 | 56x60 | |
| Total periodic | A modification of the "total aperiodic" pattern. | totalperiodic.rle | 23/3 | 201 | 60x59 | |
| T-pentomino | One of the 12 pentominoes. | tpentomino.rle | 23/3 | 5 | 3x3 | |
| traffic-light-hasslers | Traffic-light hasslers. | traffic-light-has... | 23/3 | 15033 | 833x629 | |
| traffic-lights-extruder | Traffic lights extruder. | traffic-lights-ex... | 23/3 | 23889 | 3141x2078 | |
| Traffic circle | A period 100 oscillator that works by hassling a traffic jam so that it moves... | trafficcircle.rle | 23/3 | 193 | 48x48 | |
| Traffic jam | In this reaction, two traffic lights interact in such a way as to reappear af... | trafficjam.rle | 23/3 | 24 | 16x8 | |
| Traffic light | A common period 2 oscillator made up of four blinkers. | trafficlight.rle | 23/3 | 12 | 7x7 | |
| Traffic light_synth | Glider syntheses of traffic lights. | trafficlight_synt... | 23/3 | 136 | 109x29 | |
| Trans-barge with tail | A 10-cell still life. | transbargewithtai... | 23/3 | 10 | 6x6 | |
| Trans-barge with tail_synth | Glider syntheses of Trans-barge with tail | transbargewithtai... | 23/3 | 260 | 106x133 | |
| Trans-beacon and cap | A period 2 oscillator. | transbeaconandcap... | 23/3 | 14 | 6x8 | |
| Trans-beacon and cap_synth | Glider synthesis of trans-beacon and cap. | transbeaconandcap... | 23/3 | 88 | 108x12 | |
| Trans-beacon and dock | A period 2 oscillator. | transbeaconanddoc... | 23/3 | 16 | 7x8 | |
| Trans-beacon and dock_synth | Glider syntheses of trans-beacon and dock | transbeaconanddoc... | 23/3 | 200 | 120x53 | |
| Trans-beacon and table | A period 2 oscillator. | transbeaconandtab... | 23/3 | 12 | 6x7 | |
| Trans-beacon and table_synth | Glider synthesis of trans-beacon and table. | transbeaconandtab... | 23/3 | 180 | 109x49 | |
| Trans-block and long hook | A 12-cell still life. | transblockandlong... | 23/3 | 12 | 5x6 | |
| Trans-block and long hook_synth | Glider syntheses of Trans-block and long hook | transblockandlong... | 23/3 | 369 | 147x113 | |
| Trans-block and long hook eating tub | A period-3 oscillator, the trans version of the candlefrobra; discovered by R... | transblockandlong... | 23/3 | 16 | 10x5 | |
| Trans-block and long hook eating tub_synth | A 12-glider synthesis of Trans-block and long hook eating tub | transblockandlong... | 23/3 | 183 | 119x45 | |
| Trans-boat and dock | A 15-cell still life. | transboatanddock.rle | 23/3 | 15 | 6x7 | |
| Trans-boat and table | A small 11-bit still life. | transboatandtable... | 23/3 | 11 | 6x5 | |
| Trans-boat with nine | An 11-cell still life. | transboatwithnine... | 23/3 | 11 | 6x6 | |
| Trans-boat with nine_synth | Glider syntheses of Trans-boat with nine | transboatwithnine... | 23/3 | 153 | 138x88 | |
| Trans-boat with tail | A 9-cell still life. | transboatwithtail... | 23/3 | 9 | 5x5 | |
| Trans-boat with tail_synth | Glider syntheses of trans-boat with tails. | transboatwithtail... | 23/3 | 239 | 148x73 | |
| Trans-fuse with two tails | A simple 10-cell still life. | transfusewithtwot... | 23/3 | 10 | 6x6 | |
| Trans-fuse with two tails_synth | Glider synthesis of trans-fuse with two tails. | transfusewithtwot... | 23/3 | 106 | 68x34 | |
| Trans-hook and R-bee | A 14-cell still life composed of a bookend and a bun. | transhookandrbee.rle | 23/3 | 14 | 5x7 | |
| Trans-loaf with tail | An 11-cell still life. | transloafwithtail... | 23/3 | 11 | 6x6 | |
| Trans-loaf with tail_synth | Glider syntheses of trans-loaf with tails. | transloafwithtail... | 23/3 | 127 | 67x39 | |
| Trans-long boat with tail | A small 11-bit still life. | translongboatwith... | 23/3 | 11 | 6x6 | |
| Trans-mirrored R-bee | A 14-cell still life made up of two buns facing each other. | transmirroredrbee... | 23/3 | 14 | 7x5 | |
| Trans-mirrored R-bee_synth | Glider syntheses of trans-mirrored R-bees. | transmirroredrbee... | 23/3 | 117 | 107x23 | |
| Transparent block reaction | A reaction in which a B-heptomino passes through a block. | transparentblockr... | 23/3 | 11 | 14x4 | |
| Trans-queen bee shuttle | A period 30 oscillator that is a queen bee shuttle with its blocks offset. | transqueenbeeshut... | 23/3 | 20 | 22x7 | |
| Trans-R-bee and R-loaf | A 15-cell still life. | transrbeeandrloaf... | 23/3 | 15 | 5x8 | |
| Trans-rotated R-bee | A 14-cell still life. | transrotatedrbee.rle | 23/3 | 14 | 7x7 | |
| Tredecapole | http://conwaylife.com/wiki/Tredecapole | tredecapole.rle | 23/3 | 19 | 16x16 | |
| triangle_greyship_1 | 45-90-45-triangle greyship with p2 technology except on backslope | triangle_greyship... | 23/3 | 1150 | 85x74 | |
| triangle_greyship_2 | triangle greyship with back slope of 1/4 | triangle_greyship... | 23/3 | 1871 | 95x120 | |
| Tri-block | A relatively common pseudo still life. | triblock.rle | 23/3 | 12 | 8x2 | |
| Trice tongs | A period 3 oscillator found in February 1982. | tricetongs.rle | 23/3 | 16 | 7x7 | |
| Trice tongs_synth | Glider synthesis of trice tongs. | tricetongs_synth.rle | 23/3 | 365 | 146x66 | |
| triple-Snark-wick-extruder | Single-channel construction arms continuously extending three wicks | triple-Snark-wick... | 23/3 | 19568 | 2155x1881 | |
| Triple caterer | A period 3 oscillator. | triplecaterer.rle | 23/3 | 48 | 16x11 | |
| Triple pseudo still life | A 32-cell still life found in 2001 that can be broken down into three stable ... | triplepseudostill... | 23/3 | 32 | 8x10 | |
| Triplets | The five distinct triplets. | triplets.rle | 23/3 | 15 | 38x3 | |
| Tripole | The barberpole of length 3 and thus a period 2 oscillator. | tripole.rle | 23/3 | 9 | 6x6 | |
| Tripole_synth | Glider synthesis of tripole. | tripole_synth.rle | 23/3 | 44 | 34x24 | |
| Tritoad | A period 3 oscillator found in October 1977. | tritoad.rle | 23/3 | 60 | 18x14 | |
| True period 22 gun | The first true period 22 gun constructed. Found in August 2000. | trueperiod22gun.rle | 23/3 | 86 | 45x21 | |
| trueperiod24gun | A true period 24 glider gun. | trueperiod24gun.rle | 23/3 | 335 | 43x32 | |
| T-tetromino | One of 5 tetrominoes. | ttetromino.rle | 23/3 | 4 | 3x2 | |
| Tub | A very common 4-cell still life. | tub.rle | 23/3 | 4 | 3x3 | |
| Tub_synth | Glider synthesis of tubs. | tub_synth.rle | 23/3 | 264 | 147x74 | |
| Tubber | A period 3 oscillator that was found no later than June 1972. | tubber.rle | 23/3 | 48 | 13x13 | |
| tubstretch-c124b | c/124 pseudo tub-stretcher | tubstretch-c124b.rle | 23/3 | 2446 | 346x313 | |
| Tub test tube baby | A period 2 oscillator. | tubtesttubebaby.rle | 23/3 | 16 | 10x6 | |
| Tub test tube baby_synth | A 14-glider synthesis of tub test tube baby | tubtesttubebaby_s... | 23/3 | 200 | 138x40 | |
| Tub with cis-tail | http://conwaylife.com/wiki/Tub_with_cis-tail | tubwithcistail.rle | 23/3 | 11 | 7x5 | |
| Tub with extra long tail | A small 11-bit still life. | tubwithextralongt... | 23/3 | 11 | 4x8 | |
| Tub with long long tail | A 10-cell still life. | tubwithlonglongta... | 23/3 | 10 | 4x7 | |
| Tub with long long tail_synth | Glider synthesis of tub with long long tail. | tubwithlonglongta... | 23/3 | 122 | 64x53 | |
| Tub with long tail | A 9-cell still life. | tubwithlongtail.rle | 23/3 | 9 | 4x6 | |
| Tub with long tail_synth | Glider synthesis of tub with long tail. | tubwithlongtail_s... | 23/3 | 415 | 145x105 | |
| Tub with tail | An 8-cell still life. | tubwithtail.rle | 23/3 | 8 | 5x5 | |
| Tub with tail_synth | Glider syntheses of tub with tails. | tubwithtail_synth... | 23/3 | 233 | 107x104 | |
| Tumbler | The smallest known period 14 oscillator. | tumbler.rle | 23/3 | 16 | 9x5 | |
| Tumbler_synth | Glider synthesis of tumbler. | tumbler_synth.rle | 23/3 | 386 | 113x111 | |
| Tumbling T-tetson | A period 8 oscillator consisting of two figure eights hassling a T- | tumblingttetson.rle | 23/3 | 34 | 21x10 | |
| Turing machine | A pattern capable of turing-complete computation. Created in April | turingmachine.rle | 23/3 | 36549 | 1714x1647 | |
| Turning toads | An orthogonal period 4 wick that was found in October 1989. | turningtoads.rle | 23/3 | 56 | 37x8 | |
| Turtle | A period 3 c/3 orthogonal spaceship. | turtle.rle | 23/3 | 44 | 12x10 | |
| Turtle with tagalong | An extensible tagalong for the c/3 orthogonal turtle spaceship. | turtlewithtagalon... | 23/3 | 139 | 70x11 | |
| Twin bees shuttle | Twin bees shuttle was found in 1971 and is the basis of all known period 46 o... | twinbeesshuttle.rle | 23/3 | 28 | 29x11 | |
| Twin bees shuttle_synth | Glider synthesis of twin bees shuttle. | twinbeesshuttle_s... | 23/3 | 400 | 154x92 | |
| Twin bees shuttle interactions | Interactions between gliders, LWSS, and MWSS catalyzed by twin bees shuttle | twinbeesshuttlein... | 23/3 | 494 | 192x109 | |
| Twin bees shuttles hassling blinker | The smallest known period-92 oscillator. | twinbeesshuttlesh... | 23/3 | 61 | 68x11 | |
| Twin bees shuttle v2 | Some alternate stabilizations of the period 46 twin bees shuttle os | twinbeesshuttlev2... | 23/3 | 41 | 27x17 | |
| Twin hat | A 17-cell still life. | twinhat.rle | 23/3 | 17 | 9x5 | |
| Twin hat_synth | Glider syntheses of twin hat | twinhat_synth.rle | 23/3 | 226 | 110x128 | |
| Twin prime calculator | A pattern constructed on September 9, 1994 that produces a stream o | twinprimecalculat... | 23/3 | 3062 | 440x294 | |
| twinprimes | Twin prime generator | twinprimes.rle | 23/3 | 3062 | 440x294 | |
| Twirling T-tetsons 2 | A period 60 oscillator made up of a pre-pulsar hassled by killer toads. | twirlingttetsons2... | 23/3 | 56 | 24x24 | |
| Twirling T-tetson II | A period-60 oscillator discovered in 1989 | twirlingttetsonsi... | 23/3 | 64 | 24x24 | |
| two-glider-collisions | the 71 distinct 2-glider collisions, grouped by what they produce | two-glider-collis... | 23/3 | 1919 | 379x369 | |
| Two cis griddles with two tubs | http://conwaylife.com/wiki/Two_cis_griddles_with_two_tubs | twocisgriddleswtw... | 23/3 | 16 | 8x7 | |
| Two eaters | A period 3 oscillator that was found in September 1971. | twoeaters.rle | 23/3 | 14 | 9x8 | |
| Two eaters_synth | Glider synthesis of two eaters. | twoeaters_synth.rle | 23/3 | 176 | 155x28 | |
| Two-glider mess | The longest-lived two-glider collision and a methuselah with lifespan 530. | twoglidermess.rle | 23/3 | 10 | 6x6 | |
| Two-glider mess_synth | Glider synthesis of two-glider mess. | twoglidermess_syn... | 23/3 | 22 | 27x8 | |
| Two-glider syntheses | A collection of all 71 distinct two-glider collisions, grouped by what they s... | twoglidersynthese... | 23/3 | 1919 | 379x369 | |
| twogun | The smallest known period-60 gun; it uses two copies of the Gosper | twogun.rle | 23/3 | 95 | 39x27 | |
| Two pre-L hasslers | The first period 16 oscillator to be found. Found in July 1983. | twoprelhasslers.rle | 23/3 | 70 | 24x16 | |
| Two pulsar quadrants | A period 3 oscillator found in July 1973. | twopulsarquadrant... | 23/3 | 18 | 9x9 | |
| twopulsarquadrants_synth | Glider synthesis of two pulsar quadrants | twopulsarquadrant... | 23/3 | 50 | 28x38 | |
| Two trans griddles with two tubs | http://conwaylife.com/wiki/Two_trans_griddles_with_two_tubs | twotransgriddlesw... | 23/3 | 16 | 8x7 | |
| Undecapole | http://conwaylife.com/wiki/Undecapole | undecapole.rle | 23/3 | 17 | 14x14 | |
| Unicycle | A period 6 oscillator made up of four copies of unix. | unicycle.rle | 23/3 | 56 | 14x14 | |
| Unicycle_synth | Glider synthesis of unicycle. | unicycle_synth.rle | 23/3 | 776 | 146x91 | |
| Unidimensional four gliders | A solid 56-by-1 rectangle that is the shortest solid rectangle to p | unidimensionalfou... | 23/3 | 56 | 56x1 | |
| Unidimensional infinite growth | Infinite growth resulting from a single row of live cells. | unidimensionalinf... | 23/3 | 28 | 39x1 | |
| Unidimensional nothing | A unidimensional pattern that dies out completely. Found in October | unidimensionalnot... | 23/3 | 66 | 149x1 | |
| Unidimensional pentadecathlon | A unidimensional pattern that is a predecessor of the pentadecathlo | unidimensionalpen... | 23/3 | 10 | 10x1 | |
| Unidimensional six gliders | The smallest unidimensional pattern to emit a glider. | unidimensionalsix... | 23/3 | 12 | 15x1 | |
| Unidimensional tumbler | A 1-cell-thick pattern that creates a tumbler. Found in October 199 | unidimensionaltum... | 23/3 | 27 | 36x1 | |
| Uninteresting p24 | http://conwaylife.com/wiki/Uninteresting_p24 | uninterestingp24.rle | 23/3 | 82 | 26x15 | |
| unique-high-period | Unique High-Period Oscillators | unique-high-perio... | 23/3 | 2084 | 254x174 | |
| Universal turing machine | A universal Turing machine created by Paul Rendell, completed on February 10,... | universalturingma... | 23/3 | 252192 | 12699x12652 | |
| Unix | A period 6 oscillator that consists of two blocks eating a barge. | unix.rle | 23/3 | 16 | 8x8 | |
| Unix_synth | Glider synthesis of unix. | unix_synth.rle | 23/3 | 113 | 121x26 | |
| Unix on 41P7.2 | A small non-trivial period 42 oscillator | unixon41p7.2.rle | 23/3 | 57 | 18x18 | |
| unlimited-novelty.mc | nick-gotts-n type rake interaction with apparently unlimited novelty | unlimited-novelty.mc | 50 | 62x69 | ||
| Up dove on dove | 18-bit still life #355 in Mark D. Niemiec's life synthesis database | updoveondove.rle | 23/3 | 18 | 9x5 | |
| Up dove on dove synthesis | 18-355.rle | updoveondove_synt... | 23/3 | 210 | 89x90 | |
| U-pentomino | One of the 12 pentominoes. | upentomino.rle | 23/3 | 5 | 3x2 | |
| Up wing on wing | http://conwaylife.com/wiki/Up_wing_on_wing | upwingonwing.rle | 23/3 | 16 | 9x4 | |
| utm | utm.rle | 23/3 | 252192 | 12699x12652 | ||
| vacuum-cleaner | Double p46 gun found by Dieter Leithner pulls blocks and beehives | vacuum-cleaner.rle | 23/3 | 440 | 90x97 | |
| Vacuum (gun) | A true period 46 double-barreled gun found on February 21, 1997. | vacuumgun.rle | 23/3 | 126 | 49x43 | |
| Vacuum (gun) pulling | A true period 46 gun pulling blocks and beehives. | vacuumgunpulling.rle | 23/3 | 440 | 90x97 | |
| Vase siamese hat | The most common 27-bit still life on Catagolue | vasesiamesehat.rle | 23/3 | 27 | 9x9 | |
| 27vaseha.rle | vasesiamesehat_sy... | 23/3 | 226 | 111x32 | ||
| Venetian blinds | A simple period 2 agar. | venetianblinds.rle | 23/3 | 900 | 38x45 | |
| Very long clock | http://conwaylife.com/wiki/Very_long_clock | verylongclock.rle | 23/3 | 30 | 12x8 | |
| Very long house | An induction coil. | verylonghouse.rle | 23/3 | 12 | 7x3 | |
| Very long integral | http://conwaylife.com/wiki/Very_long_integral | verylongintegral.rle | 23/3 | 11 | 7x3 | |
| Very very long barge | http://conwaylife.com/wiki/Very_very_long_barge | veryverylongbarge... | 23/3 | 12 | 7x7 | |
| Very very long boat | http://conwaylife.com/wiki/Very_very_long_boat | veryverylongboat.rle | 23/3 | 11 | 6x6 | |
| Very very long canoe | http://conwaylife.com/wiki/Very_very_long_canoe | veryverylongcanoe... | 23/3 | 11 | 8x8 | |
| Very very long ship | http://conwaylife.com/wiki/Very_very_long_ship | veryverylongship.rle | 23/3 | 12 | 6x6 | |
| Very^3 long boat | http://conwaylife.com/wiki/Very%5E3_long_boat | veryveryverylongb... | 23/3 | 13 | 7x7 | |
| Very^3 long ship | A 14-bit still life. | veryveryverylongs... | 23/3 | 14 | 7x7 | |
| Very^4 long boat | A 15-bit still life. | veryveryveryveryl... | 23/3 | 15 | 8x8 | |
| Very^4 long snake | http://www.conwaylife.com/wiki/Very%5E4_long_snake | veryveryveryveryl... | 23/3 | 11 | 9x7 | |
| Very^5 long boat | A 17-bit still life. | veryveryveryveryv... | 23/3 | 17 | 9x9 | |
| Very^6 long boat | http://conwaylife.com/wiki/Very%5E6_long_boat | veryveryveryveryv... | 23/3 | 19 | 10x10 | |
| Very^7 long boat | http://conwaylife.com/wiki/Very%5E7_long_boat | veryveryveryveryv... | 23/3 | 21 | 11x11 | |
| Very^8 long boat | http://conwaylife.com/wiki/Very%5E8_long_boat | veryveryveryveryv... | 23/3 | 23 | 12x12 | |
| Very^9 long boat | http://conwaylife.com/wiki/Very%5E9_long_boat | veryveryveryveryv... | 23/3 | 25 | 13x13 | |
| V gun | A true period 726 7-in-a-row Cordership gun that was found in June | vgun.rle | 23/3 | 29519 | 2325x1257 | |
| Voldiag | http://conwaylife.com/wiki/Voldiag | voldiag.rle | 23/3 | 100 | 26x26 | |
| V-pentomino | One of the 12 pentominoes. | vpentomino.rle | 23/3 | 5 | 3x3 | |
| Washerwoman | An orthogonal 2c/3 period 18 fuse that burns tubs. | washerwoman.rle | 23/3 | 45 | 56x5 | |
| Washing machine | A period 2 oscillator found no later than June 1972. | washingmachine.rle | 23/3 | 24 | 7x7 | |
| Washing machine_synth | Glider synthesis of washing machine. | washingmachine_sy... | 23/3 | 64 | 37x27 | |
| Wasp | An orthogonal c/3 period 3 spaceship that was found in March 1998. | wasp.rle | 23/3 | 47 | 22x9 | |
| Wavefront | A period 4 oscillator found no later than 1976. | wavefront.rle | 23/3 | 36 | 13x13 | |
| Waveguide 1 | The first waveguide to be found. | waveguide1.rle | 23/3 | 131 | 53x21 | |
| wedge-grow.mc | 26-cell quadratic growth pattern: a forward-glider-producing switch | wedge-grow.mc | 26 | 16193x15089 | ||
| weekenderdistaff.rle.gz | 2c/7 adjustable-period rake, constructed on May 22, 2014 | weekender-distaff... | 23/3 | 6609 | 281x2206 | |
| Weekender | An orthogonal period 7 spaceship with speed 2c/7. | weekender.rle | 23/3 | 36 | 16x11 | |
| weekender_synth.rle | 79-glider synthesis of weekender spaceship. | weekender_synth.rle | 23/3 | 395 | 188x177 | |
| weekenderdistaff.rle | 2c/7 adjustable-period rake, constructed on May 22, 2014 | weekenderdistaff.rle | 23/3 | 6609 | 281x2206 | |
| Weekender tagalong | A tagalong for two period 7 orthogonal 2c/7 weekenders, found on April 27, 2000. | weekendertagalong... | 23/3 | 122 | 37x24 | |
| Welded geese | A pair of Canada geese that have been welded together. | weldedgeese.rle | 23/3 | 69 | 23x22 | |
| Why not | A period 2 oscillator found in July 1977 that is very similar to by flops. | whynot.rle | 23/3 | 14 | 7x7 | |
| Why not_synth | Glider synthesis of why not. | whynot_synth.rle | 23/3 | 555 | 156x92 | |
| wicks-DRH-2002 | Wicks found on random tori. The first p8 and the p20 have been | wicks-DRH-2002.rle | 23/3 | 22103 | 1172x450 | |
| Wickstretcher 1 | The first wickstretcher to be found. | wickstretcher1.rle | 23/3 | 176 | 49x16 | |
| Windmill | A period 4 oscillator found in November 1989. | windmill.rle | 23/3 | 56 | 18x18 | |
| Wing | An induction coil. | wing.rle | 23/3 | 8 | 4x4 | |
| Wing extended | An extension of the wing spaceship. Diagonal, period 4, speed c/4. | wingextended.rle | 23/3 | 192 | 47x47 | |
| Wing (spaceship) | The first extensible c/4 spaceship. Diagonal and period 4. Found in 1993. | wingspaceship.rle | 23/3 | 72 | 23x23 | |
| Worker bee | A period 9 oscillator found in 1972. | workerbee.rle | 23/3 | 34 | 16x11 | |
| Worker bee_synth | Glider synthesis of worker bee (aka. lonely bee). | workerbee_synth.rle | 23/3 | 911 | 156x111 | |
| W-pentomino | One of the 12 pentominoes. | wpentomino.rle | 23/3 | 5 | 3x3 | |
| x66 | A period 4 speed c/2 orthogonal spaceship found in July 1992 via a | x66.rle | 23/3 | 34 | 9x11 | |
| x66_half | Half of x66 supported by a heavyweight spaceship | x66_half.rle | 23/3 | 30 | 9x11 | |
| x66_synth.rle | 13-glider synthesis of x66 and 9-glider synthesis of x66-half on HWSS | x66_synth.rle | 23/3 | 110 | 27x79 | |
| X-pentomino | One of the 12 pentominoes. | xpentomino.rle | 23/3 | 5 | 3x3 | |
| Y-pentomino | One of the 12 pentominoes. | ypentomino.rle | 23/3 | 5 | 4x2 | |
| Z-hexomino | One of 35 hexominoes. It appears in pentoad and Achim's p144. | zhexomino.rle | 23/3 | 6 | 3x4 | |
| zigzag-wickstretcher | zigzag c/2 orthogonal wickstretcher: Jason Summers, 14 Feb 2006 | zigzag-wickstretc... | 23/3 | 10580 | 331x1070 | |
| Z-pentomino | One of the 12 pentominoes. | zpentomino.rle | 23/3 | 5 | 3x3 | |
| Zweiback | A period 30 oscillator in which two heavyweight volcanoes hassle a | zweiback.rle | 23/3 | 331 | 79x21 |