ref: dfa1176b9c16e83e4bb024e2d260fb92c38cebb0
dir: /sys/games/lib/life/billiard5/
.........xx.. ........x.x.. ..xx....x.... ...x..xx.x... ...x.x...x... xx.x.x.x.x.xx xx.x.x.x.x.xx ...x.....x... xx.x....xx.xx xx.x..x..x.xx ...x.x.x.x... ...x..xx.x... ..xx....x.... ........x.x.. .........xx..