% nurikabe 371 by Otto Janko, http://www.janko.at/Raetsel/Nurikabe/371.a.htm
nurikabe
medium-
13 13
..2.3.......5
.............
.5.1...1...3.
.....3.......
..2....2..2..
.............
3....2..3....
.........5..2
2....3.......
.............
..1.1.....6.2
.............
.4.2....3...3
