#N Griddle and beehive #C A period 2 oscillator. #C www.conwaylife.com/wiki/index.php?title=Griddle_and_beehive x = 6, y = 8, rule = B3/S23 3bo2b$bobo2b$o4bo$6o2$2b2o2b$bo2bob$2b2o!