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enxio27
PostPosted: Wed Apr 22, 2009 3:40 pm 
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enxio27 Clueless Special #001

Rating: Nightmare? (Børge, please confirm)

Image

Code:
.7.4...6..5....89.....38.........7...3.........2.....45.......97..5.2.....9....28
2.....4.6...4.5...4.3.....2.......4.7.1....5...8....2..7........2..8.937...37....
4..2.9.7........14.2.4.6.....6...1.99.2........4...5.7...895...79....8...4..3...2
.2...9..8.91.....6.7..63..25......8.1..........3....4....2..8..817............9.7
....6...4943..........238....2...7....5...9.2.19.........748.1.2..1...7..9.....4.
.4....7.9.1.587....5......3.......9.73.......8......1....39.2...73..........1.9.5
.9....5.3.42.8.......93...1.81............62.......1..7....2.6......8.79..4......
9.....817...9.2...5.8............6.1......9....6.......5.6...2..3....486.8..34...
6.24.....4......73.....1.8..8....7........5...6......98..9.........3..56.24......


Techniques used:
Hidden Text:
326 Naked Single
204 Hidden Single
84 Intersection
4 Naked Pair
5 Naked Triplet
2 Naked Quad
1 Hidden Pair
1 X-Wing
3 Two String Kite
1 Empty Rectangle
3 Finned X-Wing
2 Uniqueness Test 1
4 XY-Wing
1 Y-Wing
3 XY-Chain up to 5 links
6 XY-Chain
2 XY-X-Chain up to 3 links
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Børge
PostPosted: Wed Apr 22, 2009 7:47 pm 
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Posts: 868
enxio27 wrote:
enxio27 Clueless Special #001

Rating: Nightmare? (Børge, please confirm)
According to my rating table this puzzle is rated "Ultra Hard".
And judging by the number of Chains and when they are required, I would rate this puzzle "Extra Ultra Hard".

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