% nurikabe 586 by Adolfo Zanellati, http://www.janko.at/Raetsel/Nurikabe/586.a.htm
nurikabe
medium-
15 10
..4.2.5....4...
...............
...5...3.......
.....2...2.3...
...............
.......2..2...9
.....5.........
.3........2...3
........2...3..
.3.2.2...2.....
