x = 29, y = 11, rule = B3678/S34678
6boo$5b4oboo$3bob7o6bo3boo$bb9obo3b4oboobo$b11obb6ob6o$27o$27o$b15obb
9obo$bboob10obo3b7o$4boobboo3b3o6booboo$7bobbo3boo!
Period 1240 dirty puffer.
This is related to another puffer which almost has the same front end.
Allan Wechsler, October 1997
