x = 116, y = 154
20boboo7boo49boo7boobo$16b3obooboboo3boobboo7boo25boo7boobboo3booboboo
b3o$15bo6boobb5o3boo4booboo12bo12booboo4boo3b5obboo6bo$16boo3bo3bo3bo
bbobobo3bobbobo10bobo10bobobbo3bobobobbo3bo3bo3boo$28bo8bo4bobbo9bo3bo
9bobbo4bo8bo$37bo4bobobo9b3o9bobobo4bo$37bobbo5boboo15boobo5bobbo$33b
3o5bo3boobo5boo3boo5boboo3bo5b3o$22boboo6bo12boobobo3boo3boo3boboboo
12bo6boobo$18b3obooboboo3b3o15boobb3ob3obboo15b3o3booboboob3o$17bo6boo
bb5o17b3o9b3o17b5obboo6bo$18boo3bo3bo3bo19boobbooboobboo19bo3bo3bo3boo
$30bo24booboo24bo$51boobob3oboboo$51boobo5boboo$50bobobo5bobobo$50bo3b
o5bo3bo$56bobo$50bo3b3ob3o3bo$50bob5ob5obo$50bobo9bobo$52bobooboboobo$
51boobob3oboboo$52bobob3obobo$49booboboo3booboboo$49boobobo5boboboo$
50bobobo5bobobo$31bo21boo5boo21bo$24boob3ob3o20b7o20b3ob3oboo$24boo4bo
bbooboo19bo19booboobbo4boo$23bobboboo3bobboo14bobobbobbobo14boobbo3boo
bobbo$35bobbo5bo6boobo5boboo6bo5bobbo$39bobb4o5boo3bobo3boo5b4obbo$42b
o3bo6boo5boo6bo3bo$37b3obboboboo5b9o5boobobobb3o$40bobbooboboo15boobob
oobbo$42boobo3boboo9boobo3boboo$49bobob9obobo$boob3o13booboo6b3o16b15o
$boo4booboo6boobo3bo3boobo19b4o3b4o$obbobo4boo4bo4bo4bobo3boboo18boobo
boo$7boobobobb3o3b3o3b5obbobo15bobb5obbo$11boo4bo3bobbobboo3bobob3o13b
o3b3o3bo$15bobbo3b3o4bobbobobobob3o8boo9boo$11bo3bobbo3bobo3b3obobobo
6bo8boo3bo3boo$11bo3bo4bobobobo3bobobobobooboo14bo$13boo15bobobobo7boo
11bo$33booboobboobboo$34boboobboboo$27bo4b3obboobob3obbo$16bo8boobo3b
3o9bobo$12b3ob3o6boobobo3bobbobobbo$11bo6boo4bobboo3bo10bo$12boo3bobbo
8bo12bo24bo$22b3obbobobboo31booboo$22bob4ob4obo24boo5bobo$20bobbobobob
obobo25boo4bobbo$65bobo$68bo$63b3obo$62bobbo$63boo$60bo3bo$60b3o$60b3o
$$4boob3o13booboo6b3o22boo$4boo4booboo6boobo3bo3boobo24bo$3bobbobo4boo
4bo4bo4bobo3boboo17b5o$10boobobobb3o3b3o3b5obbobo16b4obbo$14boo4bo3bo
bbobboo3bobob3o18boo$18bobbo3b3o4bobbobobobob3o36b3o6booboo13b3oboo$
14bo3bobbo3bobo3b3obobobo6bo36boboo3bo3boboo6booboo4boo$14bo3bo4bobobo
bo3bobobobobooboo34boobo3bobo4bo4bo4boo4bobobbo$16boo15bobobobo7boo13b
oo15bobobb5o3b3o3b3obboboboo$36booboobboobboo12bobbo12b3obobo3boobbobb
o3bo4boo$37boboobboboo15bobo8b3obobobobobbo4b3o3bobbo$30bo4b3obboobob
3obbo12bo8bo6bobobob3o3bobo3bobbo3bo$19bo8boobo3b3o9bobo23booboobobobo
bo3bobobobo4bo3bo$15b3ob3o6boobobo3bobbobobbo24boo7bobobobo15boo$14bo
6boo4bobboo3bo10bo23boobboobbooboo$15boo3bobbo8bo12bo26boobobboobo$25b
3obbobobboo31bobb3oboboobb3o4bo$25bob4ob4obo31bobo9b3o3boboo8bo$23bobb
obobobobobo36bobbobobbo3boboboo6b3ob3o$72bo10bo3boobbo4boo6bo$63bo9bo
12bo8bobbo3boo$64boo16boobbobobb3o$63boo16bob4ob4obo$82bobobobobobobbo
3$86bo12boo$80bo3b3o10booboboo$79b4o5b3o4bo4bobb4o$78bo3bo5b3o3boo6bo
4bo$76b3obo5bobboobboobbo7b3o$74bobboobboboo7boo3bo$74bo3bobo3boo7b3ob
obo8bo$68bo5boo4bobobooboboobboboboboo4b4oboo$66bobo5bobboobo4bobobbo
4boboobbo3bobboboo$67boo9booboboo3bo3boobb3o4b3obobobo$76bobbo12b4o7b
oo$78boo12b3o4bobobbo$96bobo21$78bo$79boo$78boo24$90bo$91bo$89b3o!
Period 45 c/3 backwards rake.
This uses a period 45 base puffer whose output is perturbed by three
period 3 c/3 edge-spark spaceships into two backwards gliders.
The backmost edge c/3 edge spark spaceship deletes one of the gliders.
David I. Bell, April 1997
