% nurikabe 557 by Adolfo Zanellati, http://www.janko.at/Raetsel/Nurikabe/557.a.htm
nurikabe
medium
16 12
..2.2.2...7.....
................
3..............3
.9............3.
.......2.2..9...
.....4..2......4
2...2...........
................
........1.3.2...
.2.2.3........2.
3......2.......2
.....3....1.2...
