% nurikabe 174 by ooya, http://www.janko.at/Raetsel/Nurikabe/174.a.htm
nurikabe
medium-
18 10
........b.........
4.................
.....f..5.........
..................
.....2..8.........
.........4...4....
..2...............
...3...4.4........
...............6..
.........4...5....
