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Puzzle 11/02/26 Difficult BBDB

 
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daj95376



Joined: 23 Aug 2008
Posts: 3854
PostPosted: Sat Feb 26, 2011 11:46 pm    Post subject: Puzzle 11/02/26 Difficult BBDB Reply with quote
Code:
 +-----------------------+
 | 5 . . | . . 9 | 7 1 . |
 | . . 7 | 2 . . | . . . |
 | . 1 8 | . 6 7 | 3 9 . |
 |-------+-------+-------|
 | . 7 . | . . . | 9 3 . |
 | . . 1 | . 5 . | 2 7 . |
 | 2 . 3 | . . . | . . . |
 |-------+-------+-------|
 | 1 . 9 | 6 2 . | 8 5 7 |
 | 7 . 6 | 9 8 . | 1 . . |
 | . . . | . . . | 6 . . |
 +-----------------------+

Play this puzzle online at the Daily Sudoku site
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peterj



Joined: 26 Mar 2010
Posts: 974
Location: London, UK
PostPosted: Sun Feb 27, 2011 10:38 am    Post subject: Reply with quote
After my "simple" ANP, it's with some trepidation I post this double ANP ... but the (14) and (34) pairs were interestingly intertwined and do major damage to the puzzle...
Quote:
anp(14=8)r4c45 - (8=4)r1c4 - anp(34=1)r12c5 - (1=4)r4c5 ; r4c3<>4
xyz-wing(46-8) r5c9 ; r46c9<>8
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Marty R.



Joined: 12 Feb 2006
Posts: 5770
Location: Rochester, NY, USA
PostPosted: Mon Feb 28, 2011 5:57 am    Post subject: Reply with quote
I set the world record with 10 moves, but still happy to finish without resorting to T&E.
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