% nurikabe 374 by Otto Janko, http://www.janko.at/Raetsel/Nurikabe/374.a.htm
nurikabe
medium
13 13
.4.2...2.4...
............3
.....2.......
1........3...
.....2......2
.5.1....3....
...........7.
2.2..3.......
..........4..
....1........
..3...4....3.
.....2.......
..1.....1...3
