% nurikabe 153 by ooya, http://www.janko.at/Raetsel/Nurikabe/153.a.htm
nurikabe
medium
24 14
..3.....6....4.....6....
.......4............1...
..................3....3
.3.3...2................
............5.1......2..
..9......2.......8......
.9..........3........3..
..9........2..........3.
......2.......4......3..
.........3.3............
................5...6.4.
3.2.....................
.....3......1..5......6.
....3.....2.............
