ref: 4db8a82f5a5afbd72abb6d251f67edb0b251d556
dir: /sys/games/lib/life/boatcap/
x............... .x.............. ..x............. ...x............ ....x........... .....x.......... ......x......... .......x........ ........x....... .........x...... ..........x..... ...........x..xx ............x..x .............xx.