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Set N Puzzle 34

 
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daj95376



Joined: 23 Aug 2008
Posts: 3854
PostPosted: Wed Mar 04, 2009 3:24 pm    Post subject: Set N Puzzle 34 Reply with quote
XYZ-Wing alert.

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

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tlanglet



Joined: 17 Oct 2007
Posts: 2468
Location: Northern California Foothills
PostPosted: Thu Mar 05, 2009 10:17 pm    Post subject: Reply with quote
I tried to solve this puzzle without an xyz-wing, but I did need to use one.
Quote:
Initially, a Kraken x-wing <9> in r16c25 or a simple x-wing in r35c16 make the identical deletions,
then the only move I found was a xyz-wing <569> with pivot in r6c2,
xy-wing <156> and after lots of clean up,
xy-wing<569>,
xy-wing <569>
Fun Exclamation
Ted
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