% nurikabe 150 by Lars Huttar, http://www.janko.at/Raetsel/Nurikabe/150.a.htm
nurikabe
medium-
11 11
.........7.
..1........
.3.....2...
..4.....3..
......3....
.....5.....
...1....1..
..1..3...3.
...........
.4......3..
......5....
