% nurikabe 538 by Adolfo Zanellati, http://www.janko.at/Raetsel/Nurikabe/538.a.htm
nurikabe
easy+
10 10
......4.3.
3.4.......
..........
..........
......2.4.
.4........
...3..2...
..4.......
..........
..3..4....
