% nurikabe 203 by ooya, http://www.janko.at/Raetsel/Nurikabe/203.a.htm
nurikabe
easy
10 10
3.1...2..2
...4......
......2..3
..........
.1......1.
...4.3....
....4....2
2......1..
.2.......4
.....1....
