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Extreme: Set C Puzzle 3

 
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daj95376



Joined: 23 Aug 2008
Posts: 3855

PostPosted: Wed Nov 26, 2008 6:40 am    Post subject: Extreme: Set C Puzzle 3 Reply with quote

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

Play this puzzle online at the Daily Sudoku site
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tlanglet



Joined: 17 Oct 2007
Posts: 2461
Location: Northern California Foothills

PostPosted: Thu Nov 27, 2008 1:27 am    Post subject: Reply with quote

Another fun puzzle requiring normal VH techniques; I had six steps.

Hint:
Quote:
Digits <4> & <9>

Ted
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Marty R.



Joined: 12 Feb 2006
Posts: 5121
Location: Rochester, NY, USA

PostPosted: Thu Nov 27, 2008 6:19 am    Post subject: Reply with quote

Very interesting puzzle. I used a half-dozen steps, including what I call an XY-Wing Chain, then pincer transport on same. Also used the Type 1 UR, couple of ERs, X-, XY- and XYZ-Wings.
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