shithub: plan9front

ref: e684b2a3fbd7d077ba4dabbd7fb4c7d1ff09c30c
dir: /sys/games/lib/life/fisheater/

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