% nurikabe, melon's puzzle 250 by Palmer Mebane
nurikabe
extreme
50 50
1.2.4.6..8...1.......3...2.4......................
..................5................2.4...4........
3...............4...2.............................
......................3..5........7.3.............
...............3..9..7..........4.................
5........2............................2.5.........
....2...........8...6.........4......4.....5......
............1.4...1..........4.6..1...2...........
7...2...4.........................................
...........j...3..................V.1..6..2.......
9....................................2........a...
.......................1.....6.6..1.......7.5.....
................3..1..........3...................
....4..........3.........1.2............5.........
.......1.5.8.3.....1............1.....2.....a.....
..3...............3....3.2....3...................
2......2..1....................1.....4............
...4............2..........................4......
.........4..2........3............b.3.........2...
1.....6......5..6.5.....2.2..2.........5..........
...2...........................1..................
..2......................2...........3............
........4..3.........2.......2..2.....9..b........
..2...1......4...7..................2.............
.....................1..5.5...2...................
6....2.....2..................................1...
..............1....1..............................
...{70}...1.7........3.............1...6.............
..6.7........8.......1.4...4............4.........
.............................2.......3......2.....
6...............2....3.5.......3..........4.......
......1............3..........4.....4.............
.........2....n......2.2.......1...1.3.....3......
.......2........4.8......1................2.......
............d.............8......1.....5..........
....3.1..............d............................
...............................1.{63}.1.4............
5...7........1....1...1...................4.......
.......................4.......2...4.5............
...........4.......1..............................
....................8.4.....2........3.3....9.....
.....1...7.....................1..........1.......
4......................3........4......2..........
...........................5..................1...
........................3.........6...............
i...............................1.................
.......................1.8....6.......5...........
j..........................3...2.....a..........L.
..............................5...4............9..
k...............................................1.
