% nurikabe 449 by Adolfo Zanellati, http://www.janko.at/Raetsel/Nurikabe/449.a.htm
nurikabe
medium-
12 12
3.2..7.....4
............
.....7......
....2.......
..2.....2..3
............
3........2..
.6....3.....
...2.3..7...
............
............
..3..2.2.3..
