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Set I Puzzle 9

 
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daj95376



Joined: 23 Aug 2008
Posts: 3854
PostPosted: Fri Jan 16, 2009 1:29 am    Post subject: Set I Puzzle 9 Reply with quote
Probably very demanding for manual solvers.

Code:
 +-----------------------+
 | . 5 . | . 4 7 | . . 3 |
 | 7 . . | . 8 . | . 1 5 |
 | . . 1 | . 5 . | . . 4 |
 |-------+-------+-------|
 | . . . | . . . | . . . |
 | 4 2 7 | . 9 . | . . 6 |
 | 1 . . | . . . | 5 7 . |
 |-------+-------+-------|
 | . . . | . . 4 | . . . |
 | . 7 . | . . 9 | . 2 . |
 | 8 9 4 | . 6 . | . . 7 |
 +-----------------------+

Play this puzzle online at the Daily Sudoku site

===== ===== ===== ===== ===== ===== ===== ===== ===== ===== ===== ===== =====

Can be solved using steps from ...

Basics: Naked/Hidden Single, Naked Pair/Triple, Locked Candidate 1/2

Basics+: Naked Quad, Hidden Pair/Triple/Quad

VH: BUG+1, Remote Pair, UR Type 1, X-Wing, XY-Wing

Advanced: 2-String Kite, Empty Rectangle, Skyscraper, UR Type 2, XYZ-Wing

Extreme: finned X-Wing, Multiple Colors, M-Wing, W-Wing, XY-Chain

VH+AE: multi-step VH plus one Advanced and/or one Extreme step.

Extreme+: Swordfish, Jellyfish, (but mostly) Chain
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Marty R.



Joined: 12 Feb 2006
Posts: 5770
Location: Rochester, NY, USA
PostPosted: Fri Jan 16, 2009 5:40 am    Post subject: Reply with quote
One W-Wing on 35 was enough.
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tlanglet



Joined: 17 Oct 2007
Posts: 2468
Location: Northern California Foothills
PostPosted: Sat Jan 17, 2009 6:21 pm    Post subject: Reply with quote
Marty, I did you two better for a total of three steps: x-wing <1>, xyz-wing <138> and a Type 3 UR <69>.

Ted
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