#N Thumb 2
#O David Eppstein
#C A thumb sparker found in June 2000.
#C www.conwaylife.com/wiki/index.php?title=Thumb
x = 11, y = 11, rule = 23/3
5bo5b$b2o3bo4b$bo5bo3b$2b3obob2ob$7b2obo$6o4bo$o4b5ob$3bo7b$2bob4o3b$
2bobo2bo3b$3bo!