% nurikabe 178 by ooya, http://www.janko.at/Raetsel/Nurikabe/178.a.htm
nurikabe
medium-
18 10
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..3....5.........8
...............3..
.3..4.....3..7..6.
5....7......2.....
..4....2.........5
.....3............
...........6......
............4.....
