x = 7, y = 43, rule = B3678/S34678
4bo$bbobo$b3o$5obo$b3o$bbobo$4bo6$4bo$bbobo$b3o$5obo$5obo$b3o$bbobo$4b
o6$bboo$bobobo$b3obo$boo$b3o$bbo$oobo$3o$3bo$bo$boo$bo$bo$3bo$4obo$4o$
bobobbo$bbo!
Three period 4 c/2 spaceships.
The top two related ships are the smallest ones known in this universe.
The bottom spaceship has a useful spark near the back edge.
David I. Bell, April 1997
