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Vanhegan fiendish 3/1/12

 
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arkietech



Joined: 31 Jul 2008
Posts: 1834
Location: Northwest Arkansas USA

PostPosted: Thu Mar 01, 2012 4:21 pm    Post subject: Vanhegan fiendish 3/1/12 Reply with quote

Code:
 *-----------*
 |.2.|8..|..5|
 |8..|..9|3..|
 |.1.|.6.|.78|
 |---+---+---|
 |47.|..6|...|
 |.98|...|76.|
 |...|4..|.19|
 |---+---+---|
 |54.|.1.|.8.|
 |..2|7..|..6|
 |6..|..8|.5.|
 *-----------*
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Marty R.



Joined: 12 Feb 2006
Posts: 5770
Location: Rochester, NY, USA

PostPosted: Thu Mar 01, 2012 5:59 pm    Post subject: Reply with quote

XY-Wing (297); r7c9, r9c3<>7
Multi-coloring; r2c3<>4

As is often the case, I don't know if the first move enabled the second.
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arkietech



Joined: 31 Jul 2008
Posts: 1834
Location: Northwest Arkansas USA

PostPosted: Thu Mar 01, 2012 7:46 pm    Post subject: Reply with quote

Code:
 *-----------------------------------------------------------*
 | 7     2     349   | 8     34    1     | 6     49    5     |
 | 8     56    456   |x25    7     9     | 3    x24    1     |
 | 39    1     3459  | 235   6     345-2 | 249   7     8     |
 |-------------------+-------------------+-------------------|
 | 4     7     15    | 19    89    6     | 58   *23   #23    |
 | 123   9     8     | 1235  235   235   | 7     6     4     |
 | 23    56    356   | 4     238   7     | 58    1     9     |
 |-------------------+-------------------+-------------------|
 | 5     4     79    | 6     1    *23    | 29    8    #237   |
 | 19    8     2     | 7     3459  345   | 149   349   6     |
 | 6     3     179   | 9-2   249   8     | 1249  5     27    |
 *-----------------------------------------------------------*
w-wing with help
(2=3)r7c6-(3)r7c9=(3)r4c9-(3=2)r7c8-(2)r2c8=(2)r2c4 => r3c6,r9c4<>2
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