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May 25 VH

 
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Clement



Joined: 24 Apr 2006
Posts: 686
Location: Dar es Salaam Tanzania

PostPosted: Sat May 24, 2014 10:34 pm    Post subject: May 25 VH Reply with quote

Code:

+-------------+------------+-------------+
| 5   138 36  | 9  13  678 | 4  378 2    |
| 146 138 9   | 2  134 678 | 36 378 5    |
| 7   2   34  | 68 34  5   | 1  9   68   |
+-------------+------------+-------------+
| 9   4   2   | 1  8   3   | 5  6   7    |
| 8   5   7   | 4  6   9   | 2  1   3    |
| 3   6   1   | 5  7   2   | 8  4   9    |
+-------------+------------+-------------+
| 146 13  5   | 7  9   *68  | #36 2   146-8 |
| 2   9   346 | 6-8 5   1   | 7  *38  468  |
| 16  7   8   | 3  2   4   | 9  5   16   |
+-------------+------------+-------------+
XY-Wing 36-8 pivoted in r7c7; r7c9, r8c4<>8; stte.
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Marty R.



Joined: 12 Feb 2006
Posts: 5178
Location: Rochester, NY, USA

PostPosted: Sun May 25, 2014 5:07 am    Post subject: Reply with quote

Interesting that there are two XY-Wings pivoted in r7c7, the other one being 36-1, which I don't think solves it.
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Clement



Joined: 24 Apr 2006
Posts: 686
Location: Dar es Salaam Tanzania

PostPosted: Sun May 25, 2014 6:13 am    Post subject: May 25 VH Reply with quote

Marty,
Yes, real interesting, I first spotted the 36-1 which did not solve it. Therefore, it took me time to see the second one as I did not expect it.
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