% nurikabe 376 by Otto Janko, http://www.janko.at/Raetsel/Nurikabe/376.a.htm
nurikabe
medium-
13 13
.....2.5.....
.5..........4
..1......2...
1...4.4......
............3
4........1...
.............
......1....2.
..3..3....7.5
3............
......2......
.............
2.4...2.3..3.
