x = 9, y = 20, rule = B3678/S34678
4b3o$bboboo$b6obo$8o$b6obo$bboboo$4b3o6$4b3o$bboboo$b6obo$8o$8o$b6obo$
bboboo$4b3o!
Two small related period 2 c/2 spaceships.
Top one by David I. Bell, April 1997
Bottom one by Nathan Thompson, 1994
