ref: aa52d3b13d71bd4b068ae00b2d6f0f75647a5d7c
dir: /sys/games/lib/life/billiard3/
....xx...xx.... ...x.x...x.x... ...x.......x... xx.xx.....xx.xx xx.x...x...x.xx ...x.x...x.x... ...x.x...x.x... ..xx.x...x.xx.. ...x..xxx..x... ...x.......x.x. ....xxx.....xx. ......x........