% nurikabe 16 by Warai Kamosika, http://www.janko.at/Raetsel/Nurikabe/016.a.htm
nurikabe
medium
18 10
5..1.5.4.........2
...........1......
...............1.1
....5........8....
.....1............
..................
..................
...3..............
.......5...9.1....
..6...5...9...6...
