% nurikabe 367 by Otto Janko, http://www.janko.at/Raetsel/Nurikabe/367.a.htm
nurikabe
medium
13 13
.3........3.3
...4...1.....
....1........
3........2...
.....8......2
3........2...
.............
2...2........
........2.2.5
2..3..4......
.........3...
....1........
3....3...5...
