ref: c0a7fbea1f61b1d77a09d612b85c74fd6c673b7c
dir: /sys/games/lib/life/billiard6/
..........xx.. ......xx..x... ......x.x.x... .......x..x.xx ..........x.xx ..........x... .xx.....x.x... .x.x....xx.... ..x...xx...... .......x...... xxxxxxx....... x............. ...xx......... ...xx.........