% nurikabe #7 by James Dow Allen in 2007, http://fabpedigree.com/nurikabe/nurik06.htm
nurikabe
extreme
13 13
.....3......1
..8.......1..
.......6.....
....1.1.....2
1............
....3..2.1.2.
..2...1......
1........4..1
.......3.....
..........3..
..4..8..3....
....2.1......
2..........2.
