% nurikabe 177 by ooya, http://www.janko.at/Raetsel/Nurikabe/177.a.htm
nurikabe
medium-
18 10
1.2......5.8......
..................
...4......3....2.5
......4.5.........
...1......1.......
.......3......5...
.........2.6......
6.2....6......2...
..................
......4.2......2.4
