% nurikabe 528 by Adolfo Zanellati, http://www.janko.at/Raetsel/Nurikabe/528.a.htm
nurikabe
medium-
10 10
..6.......
..........
.9..8....5
..2.....4.
..........
..........
..2...2...
....2.....
........2.
.2..3..2..
