That turns into a B-heptomino and a glider after 28 gens.Wojowu wrote: Edit 2: This one creates Herschel, may be usefulCode: Select all
x = 13, y = 10, rule = B3/S23 o$3o$3bo$2b2o3$3b2o5b2o$2bo2bo4bobo$2bobo5bo$3bo!
The herschel that you saw was from the B-heptomino.