#N Boat maker #C A diagonal period 4 lightspeed fuse that makes boats as it burns. #C www.conwaylife.com/wiki/index.php?title=Boat_maker x = 18, y = 17, rule = B3/S23 16b2o$15bobo$14bo3b$13bo4b$12bo5b$11bo6b$10bo7b$9bo8b$8bo9b$7bo10b$6bo 11b$5bo12b$5o13b$4bo13b$4bo13b$4bo13b$4bo!