% nurikabe 459 by Grant Fikes, http://www.janko.at/Raetsel/Nurikabe/459.a.htm
nurikabe
very hard
36 20
.....a......4.........1..........f..
............................4.3.b...
9.......1.....3...1.................
...........3.......9..4........6....
..9.1.......2....e..................
.........3....1.....................
......6..................5..........
....7.......7...........9...........
..5......1..........................
...........8....4..........5........
......1............................5
...3.5....3.......a...5..9....4...1.
....................................
...........f....8................3..
..5.......................3...7....5
.............3......................
..................8..2....1......3..
5....d..............1.2......1......
.3.......................d..........
...........5..7.4..................5
