#C p600, speed 28c/600 = 7c/150 puffer made from 2 shuttles #C Dean Hickerson, 1996 x = 13, y = 18, rule = B36/S245 10b2o$10bobo$10bobo$10bobo$10bobo$10b2o5$obo$ob2o$bo2bo$2b3o$2b3o$bo2b o$ob2o$obo!