% nurikabe 165 by ooya, http://www.janko.at/Raetsel/Nurikabe/165.a.htm
nurikabe
medium-
18 10
....5.3...........
........2........2
.........5....5...
..4....7...3...5.3
..................
..................
7.....3.5.........
.....4........1...
2..............8..
...4........4.....
