% nurikabe #3 by James Dow Allen in 2007, http://fabpedigree.com/nurikabe/nurik03.htm
nurikabe
extreme
15 15
...2......4....
.......2.....4.
....1...1......
7..1..1...3....
....2........2.
......2........
....2......3...
..4.......1..8.
1..1....8..2...
.....2...1.....
.3.....2....1..
...5..6..3.....
............3..
2.........1....
...2...3.......
