% nurikabe 216 by ooya, http://www.janko.at/Raetsel/Nurikabe/216.a.htm
nurikabe
medium
17 17
....5............
..........l...4..
............4....
.2.............4.
.............2...
.....6...........
.......6........4
......4....1.3...
.......4.1.......
3...............5
.2......2..5..2..
.................
3...1............
..3......2..2....
.....4.....4...6.
.......6.........
.3.........3.....
