ref: 78c45541eb66a661f4e45c2f86bb5ac37de2408b
dir: /sys/games/lib/life/glider.gun/
.........................x ......................xxxx .............x.......xxxx ............x.x......x..x.........xx ...........x...xx....xxxx.........xx xx.........x...xx.....xxxx xx.........x...xx........x ............x.x .............x