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Jan 3 DB

 
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Earl



Joined: 30 May 2007
Posts: 677
Location: Victoria, KS
PostPosted: Sat Jan 03, 2009 3:34 pm    Post subject: Jan 3 DB Reply with quote
This Jan 3 DB did not present any wings or UR's or ER's, so I solved it with an xy-chain, eliminating the 9 in R4C1.

Earl


Code:

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

Play this puzzle online at the Daily Sudoku site
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keith



Joined: 19 Sep 2005
Posts: 3355
Location: near Detroit, Michigan, USA
PostPosted: Sat Jan 03, 2009 6:53 pm    Post subject: Reply with quote
I saw a couple of XYZ-wings, only needed one to solve it.

Keith
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Marty R.



Joined: 12 Feb 2006
Posts: 5770
Location: Rochester, NY, USA
PostPosted: Sat Jan 03, 2009 7:45 pm    Post subject: Reply with quote
Same as Keith.
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