#N Schick engine
#O Paul Schick
#C An orthogonal period 12 c/2 tagalong found in 1972.
#C www.conwaylife.com/wiki/index.php?title=Schick_engine
x = 20, y = 11, rule = 23/3
bo2bo15b$o19b$o3bo15b$4o9b2o5b$6b3o5b2o4b$6b2ob2o6b3o$6b3o5b2o4b$4o9b
2o5b$o3bo15b$o19b$bo2bo!