% nurikabe 475 by Adolfo Zanellati, http://www.janko.at/Raetsel/Nurikabe/475.a.htm
nurikabe
medium-
12 9
...3......3.
.9......2...
..3.........
....3....2..
..........3.
............
..7.......8.
............
2.3...3....3
