% nurikabe 521 by Adolfo Zanellati, http://www.janko.at/Raetsel/Nurikabe/521.a.htm
nurikabe
easy+
12 8
9...2...2.3.
...1........
......4...4.
....3.......
...........2
..3.2.......
3.....2.....
.....2...3..
