#N Bi-pond #C A 16-cell still life made up of two ponds. #C www.conwaylife.com/wiki/index.php?title=Bi-pond x = 7, y = 7, rule = B3/S23 b2o4b$o2bo3b$o2bo3b$b2ob2ob$3bo2bo$3bo2bo$4b2o!