% nurikabe 362 by Otto Janko, http://www.janko.at/Raetsel/Nurikabe/362.a.htm
nurikabe
medium-
13 13
.2..2....3...
..1....4.....
1.......1...3
...6...2.....
.4.......2..4
..1..........
....2..2.....
...........4.
4......2.....
...........3.
5.1.3.2..1...
.............
.......2..3.2
