% nurikabe 109 by ooya, http://www.janko.at/Raetsel/Nurikabe/109.a.htm
nurikabe
easy
10 10
4.2.......
.......4..
.....1...2
..........
1.3.....4.
....5....3
..........
..2.3.....
.......4..
.1......3.
