% nurikabe 250 by ooya, http://www.janko.at/Raetsel/Nurikabe/250.a.htm
nurikabe
easy+
10 10
....5.....
.....3....
...2......
.....2.6..
.3.2......
......1.3.
..3.2.....
......2...
....4.....
.....6....
