% nurikabe 363 by Otto Janko, http://www.janko.at/Raetsel/Nurikabe/363.a.htm
nurikabe
medium-
13 13
.5..3...3...1
..1..........
....2....3.2.
.............
..4......4..1
....2.2......
........3....
5....1.4...2.
..........1.2
..3..........
.1...2.......
5.........3..
.......4...3.
