% nurikabe 505 by Grant Fikes, http://www.janko.at/Raetsel/Nurikabe/505.a.htm
nurikabe
easy+
18 10
.................5
.4...4...5.4.3....
.................4
..........4.......
...........5......
2.....4.........7.
.............1....
....4............3
.......4..........
9.3.....5...2.....
