% nurikabe 307 by Adolfo Zanellati, http://www.janko.at/Raetsel/Nurikabe/307.a.htm
nurikabe
medium-
10 10
3...2..3..
.....9....
.2......2.
....3.....
..........
.3.......2
..........
2.3...3...
..........
..8.....2.
