% nurikabe 527 by Adolfo Zanellati, http://www.janko.at/Raetsel/Nurikabe/527.a.htm
nurikabe
medium
10 10
2......2.3
..........
2..7...2..
..........
......3.9.
2..2......
..2.......
4....3....
.........2
...2......
