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July 25 DB

 
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Earl



Joined: 30 May 2007
Posts: 677
Location: Victoria, KS
PostPosted: Sat Jul 25, 2009 2:22 pm    Post subject: July 25 DB Reply with quote
The July 25 DB is versatile.

Solutions: color <4> to eliminate 4 in R4C6, OR the 45 W-wing extended to eliminate the 5 in R2C6. The obvious x-wing in <3> is optional.

Earl

Code:

+-------+-------+-------+
| 9 8 . | . . . | . . 3 |
| . 2 . | 8 . . | 1 . . |
| 5 . . | 6 7 . | . . . |
+-------+-------+-------+
| . 1 . | . 8 . | . 6 . |
| . . . | 7 . 2 | . . . |
| . 7 . | . 1 . | . 2 . |
+-------+-------+-------+
| . . . | . 2 7 | . . 8 |
| . . 5 | . . 9 | . 1 . |
| 7 . . | . . . | . 3 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 Jul 25, 2009 3:40 pm    Post subject: Reply with quote
Quote:
Or, the <89> UR.


Keith
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tlanglet



Joined: 17 Oct 2007
Posts: 2468
Location: Northern California Foothills
PostPosted: Sat Jul 25, 2009 11:51 pm    Post subject: Reply with quote
Or a
Quote:
xy-wing 34-5 with pivot 34 in r3c6 and extended pincer 35 to delete 5 from r2c6.

Ted
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