% nurikabe 559 by Adolfo Zanellati, http://www.janko.at/Raetsel/Nurikabe/559.a.htm
nurikabe
hard
16 12
.2.2...2..2.....
............5...
4....3.2...2..2.
................
.......3....2.2.
.3...2..........
..6..........2..
.....3..2.......
3......8....4...
..........4.....
2..........4....
....4........2.3
