ref: a9b4126468e49b662c12d2d35251443a6d7a3192 dir: /sys/games/lib/life/billiard.clock/
....xx...... ....xx...... ............ ....xxxx.... xx.x..x.x... xx.x.x..x... ...x.x..x.xx ...x....x.xx ....xxxx.... ............ ......xx.... ......xx....