ref: db002e51ebc2c56065c46dc40a9f8930b750aa6a
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.........