x = 39, y = 34, rule = B3678/S34678
bbo33bo$b3o5bo19bo5b3o$bbo5b3o5bo5bo5b3o5bo$5o4bo5b3o3b3o5bo4b5o$b3o3b
5o4bo5bo4b5o3b3o$bbo5b3o3b5ob5o3b3o5bo$9bo5b3o3b3o5bo$16bo5bo19$16bo5b
o$9bo5b3o3b3o5bo$bbo5b3o3b5ob5o3b3o5bo$b3o3b5o4bo5bo4b5o3b3o$5o4bo5b3o
3b3o5bo4b5o$bbo5b3o5bo5bo5b3o5bo$b3o5bo19bo5b3o$bbo33bo!
Twelve snails collide to form two period 20 spaceships and some junk.
This is the first reaction known which makes an even-symmetry ship.
Pete Carlton, July 1998
