x = 213, y = 59
40bo5bo119bo5bo$40bo5bo119bo5bo$40boo3boo119boo3boo$$36b3obbooboobb3o
111b3obbooboobb3o$$11boo5boo5boo5boo6boo3boo6boo5boo5boo5boo61boo5boo
5boo5boo6boo3boo6boo5boo5boo5boo$9bo3bo3bobbo3bobbo3bo3bo3bobo3bobo3bo
3bo3bobbo3bobbo3bo3bo57bo3bo3bobbo3bobbo3bo3bo3bobo3bobo3bo3bo3bobbo3b
obbo3bo3bo$9bo3bobob3o5b3obobo3bo6bobo6bo3bobob3o5b3obobo3bo57bo3bobob
3o5b3obobo3bo6bobo6bo3bobob3o5b3obobo3bo$9bo5boobb3ob3obboo5bo3bobbobo
bbo3bo5boobb3ob3obboo5bo57bo5boobb3ob3obboo5bo3bobbobobbo3bo5boobb3ob
3obboo5bo$9boob3o15b3oboo3bobbobobbo3boob3o15b3oboo57boob3o15b3oboo3bo
bbobobbo3boob3o15b3oboo$9bo25bo4boo3boo4bo25bo57bo25bo4boo3boo4bo25bo$
10bo3bo15bo3bo17bo3bo15bo3bo59bo3bo15bo3bo17bo3bo15bo3bo$11bobbo15bobb
o19bobbo15bobbo61bobbo15bobbo11bo7bobbo15bobbo$171boo$170bobo5$9bo7bo
177bo7bo$3booboboboo3booboboboo165booboboboo3booboboboo$3obob3o9b3obob
3o159b3obob3o9b3obob3o$o3bobo5bobo5bobo3bo159bo3bobo5bobo5bobo3bo$4boo
6bobo6boo167boo6bobo6boo$boo9bobo9boo161boo9bobo9boo$booboo15booboo
161booboo15booboo$5bo15bo169bo15bo24$95boo5boo5boo5boo$93bo3bo3bobbo3b
obbo3bo3bo$93bo3bobob3o5b3obobo3bo$93bo5boobb3ob3obboo5bo$93boob3o15b
3oboo$93bo25bo$94bo3bo15bo3bo$95bobbo15bobbo!

A dirty period 1800 c/5 puffer.
It works by converting a glider into a dirty explosion which releases
another glider to make the same reaction work on the other side.
David I. Bell, May 1998
