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Puzzle 10/10/20: A Advanced

 
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daj95376



Joined: 23 Aug 2008
Posts: 3854
PostPosted: Wed Oct 20, 2010 2:14 am    Post subject: Puzzle 10/10/20: A Advanced Reply with quote
Code:
 +-----------------------+
 | 6 4 . | . 9 3 | . . . |
 | 5 8 . | . . 2 | 4 . . |
 | . . 9 | 7 . . | . 5 . |
 |-------+-------+-------|
 | . . 4 | . 7 . | . 2 . |
 | 8 . . | 4 . 1 | . . . |
 | 7 3 . | . 8 6 | . 4 1 |
 |-------+-------+-------|
 | . 7 . | . . . | 1 . . |
 | . . 8 | 1 . 9 | . 3 2 |
 | . . . | . . 7 | . 8 . |
 +-----------------------+

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Marty R.



Joined: 12 Feb 2006
Posts: 5770
Location: Rochester, NY, USA
PostPosted: Thu Oct 21, 2010 4:21 am    Post subject: Reply with quote
With credit to Ted,

Quote:
Type 3 UR (56) in boxes 78
External analysis, r9c7<>5 due to invalidity
Internal analysis, pseudo cell 239, r9c7<>9
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