% nurikabe 423 by Otto Janko, http://www.janko.at/Raetsel/Nurikabe/423.a.htm
nurikabe
easy+
12 12
.4.......1.3
...5...3....
..1...1.2...
............
1...2..3..3.
.4......1...
............
....2.4..2..
...........2
.3..1.......
.....1...3..
2.2........2
