% nurikabe 578 by Adolfo Zanellati, http://www.janko.at/Raetsel/Nurikabe/578.a.htm
nurikabe
hard-
18 10
.2.2..2.5......3.5
..................
...2...3.2.2......
5.................
....3..........8..
...2......4..2....
...........1......
8....3....4.2...6.
......6........3..
.........2........
