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Puzzle 10/08/12:

 
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daj95376



Joined: 23 Aug 2008
Posts: 3854
PostPosted: Thu Aug 12, 2010 3:45 pm    Post subject: Puzzle 10/08/12: Reply with quote
Code:
 +-----------------------+
 | 5 8 . | . 7 9 | . 4 . |
 | 9 . 3 | 5 . . | . . . |
 | . 6 . | . . . | . 3 . |
 |-------+-------+-------|
 | . 7 . | 6 . 8 | . 2 5 |
 | 6 . . | . 5 . | 3 7 . |
 | 8 . . | 7 . 3 | . 6 . |
 |-------+-------+-------|
 | . . . | . 3 . | . . . |
 | 7 . 6 | 8 1 4 | . 9 3 |
 | . . . | 9 . . | . 5 . |
 +-----------------------+

Play this puzzle online at the Daily Sudoku site

Rating wrote:
XY -- originally thought to be an XY+
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peterj



Joined: 26 Mar 2010
Posts: 974
Location: London, UK
PostPosted: Thu Aug 12, 2010 5:23 pm    Post subject: Reply with quote
A wing ...
Quote:
m-wing(12) with transport (2=1)r1c3 - r2c2=(1-2)r6c2=r6c5 - r5c6=r3c6 ; r3c1<>2
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tlanglet



Joined: 17 Oct 2007
Posts: 2468
Location: Northern California Foothills
PostPosted: Thu Aug 12, 2010 9:16 pm    Post subject: Reply with quote
Quote:
AIC found extending the vertex of a potential xy-wing: (1=2)r1c3-(2=4)r3c1-(4=1)r7c1-r7c8=(1)r2c8; r1c7<>1

Ted
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tlanglet



Joined: 17 Oct 2007
Posts: 2468
Location: Northern California Foothills
PostPosted: Thu Aug 12, 2010 10:23 pm    Post subject: Reply with quote
A one step ANP() solution......

Quote:
ANP(14=8)r9c79-(8=1)r7c8-r9c9=r6c9-r6c2=r4c3-(1=2)r1c3-(2=4)r3c1-(4=1)r7c1; r9c1<>1

Ted
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Marty R.



Joined: 12 Feb 2006
Posts: 5770
Location: Rochester, NY, USA
PostPosted: Sat Aug 14, 2010 1:05 am    Post subject: Reply with quote
Potential UR (49) in boxes 47. Each solution leads to r1c79=62.
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