shithub: plan9front

ref: f6509078ed9d03b71c945b19cdda5c882cb1e78d
dir: /sys/games/lib/life/fisheater/

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