shithub: plan9front

ref: 2b5db0d9d451dafa70039dc0a668cde68e59d4f3
dir: /sys/games/lib/life/fisheater/

.....x.
......x
......x
...x..x
....xxx
.......
.......
.......
.......
.......
.......
.......
.......
.......
..xx...
...x...
xxx....
x......