#C A c/3 period 18 puffer which leaves pairs of boats.
#C David I. Bell, June 1997
x = 106, y = 20
28bo11bo24bo11bo$27bobo4b3obboo24boobb3o4bobo$24booboboboo3b3obo24bob
3o3booboboboo$24boobb5o9boob3o10b3oboo9b5obboo$23bobbo8b3o4boo4boo6boo
4boo4b3o8bobbo$28bob3ob3ob5ob3o3bo4bo3b3ob5ob3ob3obo$31boobobob3o3b3ob
o3boo3bob3o3b3oboboboo$42bobo3bo3boo3bo3bobo$44bo3bo8bo3bo$10b3o9b4o
22boobobboboo22b4o9b3o$8boobo10boboboo4boo16boobboo16boo4boobobo10bob
oo$5bobo3boboo6bobbo3bobbob5o3b3o8boo8b3o3b5obobbo3bobbo6boobo3bobo$b
oobob5obbobo5bobbobo3boo3boobo5bo3boo6boo3bo5boboo3boo3bobobbo5bobobb
5oboboo$boo5bobobbobo3bo4bobbob3obobo3bo4bobo12bobo4bo3bobob3obobbo4bo
3bobobbobo5boo$obbo3bo4boobobboobboboboo4boobo3boo6bo10bo6boo3boboo4b
oobobobboobboboo4bo3bobbo$6bo3bobbo7b3obobboobobobo5bo3bob12obo3bo5bob
oboboobbob3o7bobbo3bo$12bobob7o3b3obobobboboobo24boboobobbobob3o3b7obo
bo$14bo3b3obobo6boo40boo6bobob3o3bo$24bo3bo3bo40bo3bo3bo$32bo40bo!
