% nurikabe 614 by Mokuani, http://www.janko.at/Raetsel/Nurikabe/614.a.htm
nurikabe
medium-
10 10
..3..1..4.
..........
..........
.2.4...2.5
.....1....
....4.....
3.2...2.2.
..........
..........
.3..2..4..
