% nurikabe 339 by Halflength Sleeve, http://www.janko.at/Raetsel/Nurikabe/339.a.htm
nurikabe
medium-
18 10
..9.8........8....
..................
.......4.......4..
......4...........
..........4.......
..7......4.4..3.6.
...4..............
..6...............
.............b....
.1.3..............
