% nurikabe 588 by Adolfo Zanellati, http://www.janko.at/Raetsel/Nurikabe/588.a.htm
nurikabe
medium
18 10
.4.3...3..3..6.3..
.................3
....3.............
..........9..2....
..3.2..3.......2.2
.2................
..2.............3.
.....2..4...3.....
..................
3.2..2..2..2.2..3.
