% nurikabe 510 by Grant Fikes, http://www.janko.at/Raetsel/Nurikabe/510.a.htm
nurikabe
very hard
36 20
..........3............5.6..4....n..
.8....4....6.6......................
..2...........................6.3...
.7...............................e..
..........8.....8.........7.........
......2......2......................
...3...........5...3................
.G...4.....2.............2..........
...5...............5.......8......5.
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.....3....4..........5.......2......
...............2....................
...8......2..........4..5........7..
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...............5.....5..........1...
.5...............5.........3........
.......6...4..8.....................
....4...............1..........6....
3..................................9
.........7....5...4....3.....8......
