% nurikabe 5 by Warai Kamosika, http://www.janko.at/Raetsel/Nurikabe/005.a.htm
nurikabe
medium-
10 10
.2....3...
...3.....2
..3..2....
.........3
......2...
...2.....2
.3..3.....
......2...
.........3
.3.....2..
