% nurikabe 366 by Otto Janko, http://www.janko.at/Raetsel/Nurikabe/366.a.htm
nurikabe
medium
13 13
..7........3.
.........2...
..2.1.3.....2
..........3..
....3.3......
..........3.2
2............
..4.......2..
.....3...3...
.............
4..2.2...2..3
.............
2.....3.1...3
