% nurikabe 364 by Otto Janko, http://www.janko.at/Raetsel/Nurikabe/364.a.htm
nurikabe
medium
13 13
.2.1...3..3..
.........5...
.4.........2.
3....2.......
.............
..3..4...6..1
.............
.1..3........
......3.....4
.........2.2.
.2..2........
.............
.3..3..2.2..1
