ref: 3dc64de2e4b5293506af9d693b7d139fb88b549b
dir: /sys/games/lib/life/sparkfuse/
........................................................................................................................................xx x..x..x..x..x..x..x..x..x..x..x..x..x..x..x..x..x..x..x..x..x..x..x..x..x..x..x..x..x..x..x..x..x..x..x..x..x..x..x..x..x..x..x..x..x..x.x xxxx..xxxx..xxxx..xxxx..xxxx..xxxx..xxxx..xxxx..xxxx..xxxx..xxxx..xxxx..xxxx..xxxx..xxxx..xxxx..xxxx..xxxx..xxxx..xxxx..xxxx..xxxx..xxxx.. x..x..x..x..x..x..x..x..x..x..x..x..x..x..x..x..x..x..x..x..x..x..x..x..x..x..x..x..x..x..x..x..x..x..x..x..x..x..x..x..x..x..x..x..x..x.x ........................................................................................................................................xx