ref: 2b543568946f65d4e06a8826a04ad8f14473cab2
dir: /sys/games/lib/life/gun.gliders/
..................................x ..................................x.x x.....................x.x.........xx x.x...................xx xx......x.x............x............xxx ........xx..........................x ..xxx....x.............xx............x ..x....................x.x...x ...x.....xx............x....xx .........x.x...x............x.x .........x....xx....xx ..............x.x...x.x ....................x .......................................xx .......................................x.x .......................................x ............................xxx ............................x .............................x