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Puzzle 10/09/13: A

 
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daj95376



Joined: 23 Aug 2008
Posts: 3854
PostPosted: Mon Sep 13, 2010 5:07 am    Post subject: Puzzle 10/09/13: A Reply with quote
Code:
 +-----------------------+
 | 2 9 . | . . . | . 6 1 |
 | 5 8 . | . . . | . . 4 |
 | . . 1 | . 2 . | 5 . . |
 |-------+-------+-------|
 | . . . | 4 8 . | . . . |
 | . . 4 | 6 . 2 | 8 . . |
 | . . . | . 9 1 | . 2 . |
 |-------+-------+-------|
 | . . 9 | . 5 . | . . . |
 | 1 . . | . . 6 | . 4 2 |
 | 7 2 . | . . . | . 8 . |
 +-----------------------+

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JC Van Hay



Joined: 13 Jun 2010
Posts: 494
Location: Charleroi, Belgium
PostPosted: Mon Sep 13, 2010 10:56 am    Post subject: Reply with quote
Quote:
XY Wing Style : (73)R8C5 3R9 (37)R1C7 : => r8c7<>7
To avoid DP(39)R12C68 : r3c6<>39=7
XY Wing (57-8), pivot at r6c4 : r8c3<>8
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Marty R.



Joined: 12 Feb 2006
Posts: 5770
Location: Rochester, NY, USA
PostPosted: Mon Sep 13, 2010 10:11 pm    Post subject: Reply with quote
Type 3 UR (39) boxes 89, DP killers (7 or 8) force r4c6=5.
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