% nurikabe 349 by Halflength Sleeve, http://www.janko.at/Raetsel/Nurikabe/349.a.htm
nurikabe
medium
24 14
....6..........3......6.
4..7.....3......1....6..
........................
2.......................
.........4......a.......
........2...5..2...2....
.........4........1...6.
7.4.....................
.5....2.....a...........
...................2...4
....................6.4.
..........1.....4.......
.....2.....6...b........
.6.3....1.......1.......
