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Jan 16 DB

 
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Earl



Joined: 30 May 2007
Posts: 677
Location: Victoria, KS
PostPosted: Sat Jan 16, 2010 3:26 pm    Post subject: Jan 16 DB Reply with quote
The January 16 DB has alternate apparent paths.

Solutions: xy-wing or UR

Earl

Code:

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

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 16, 2010 6:38 pm    Post subject: Reply with quote
Quote:
After basics, there are two XY-wings, an XYZ-wing, and a UR in the grid.


Keith
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