#C 12-unit pull reaction, taking >= 273 gens
#C Dean Hickerson, 1999
x = 47, y = 97, rule = B368/S12578
o$o5bo7bo31bo$6bo7bo31bo$6bo7bo31bo$6bo7bo31bo$o5bo7bo31bo$o24$b2o$6bo
7bo$b2o3bo7bo$6bo7bo$b2o3bo7bo$6bo7bo$b2o22$3b2o3$6bo15bo15bo7bo$6bo
15bo15bo7bo$6bo15bo15bo7bo$6bo15bo15bo7bo$6bo15bo15bo7bo3$3b2o22$12bo$
12bo4$12bo$12bo!