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Puzzle 11/05/01: A Difficult

 
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daj95376



Joined: 23 Aug 2008
Posts: 3854
PostPosted: Sun May 01, 2011 4:28 pm    Post subject: Puzzle 11/05/01: A Difficult Reply with quote
Code:
 +-----------------------+
 | 4 . . | 9 . 6 | . 2 5 |
 | . 5 . | 4 . . | . . . |
 | . . 1 | 2 5 . | . . . |
 |-------+-------+-------|
 | 2 1 5 | 7 . . | 6 . 4 |
 | . . 6 | . 1 . | . 3 . |
 | 7 . . | . . 2 | 5 . 1 |
 |-------+-------+-------|
 | . . . | 1 . 9 | 3 . . |
 | 5 . . | . 7 . | . 1 . |
 | 1 . . | 3 . 5 | . . 2 |
 +-----------------------+

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peterj



Joined: 26 Mar 2010
Posts: 974
Location: London, UK
PostPosted: Mon May 02, 2011 5:44 pm    Post subject: Reply with quote
Two wings...
Quote:
w-wing(46) (4=6)r3c8 - r3c2=r9c2 - (6=4)r9c5 ; r9c8<>4
xy-wing(69=8) r3c2 ; r9c7<>8
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Marty R.



Joined: 12 Feb 2006
Posts: 5770
Location: Rochester, NY, USA
PostPosted: Mon May 02, 2011 11:03 pm    Post subject: Reply with quote
XY-Chain
DP on 36 creates pincers + one transport
BUG+1
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