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Feb 11 VH

 
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Clement



Joined: 24 Apr 2006
Posts: 1111
Location: Dar es Salaam Tanzania
PostPosted: Sun Feb 10, 2013 10:57 pm    Post subject: Feb 11 VH Reply with quote
Code:

+-----------+--------+------------+
| 348 1  9  | 7 6 24 | 234 5  *28  |
| 34  7  26 | 5 8 24 | 1   36 9   |
| 458 58 *26 | 3 9 1  | -24  #68 7   |
+-----------+--------+------------+
| 1   3  5  | 2 4 7  | 8   9  6   |
| 6   4  8  | 1 5 9  | 7   2  3   |
| 2   9  7  | 6 3 8  | 5   4  1   |
+-----------+--------+------------+
| 9   2  3  | 8 7 5  | 6   1  4   |
| 7   58 4  | 9 1 6  | 23  38 258 |
| 58  6  1  | 4 2 3  | 9   7  58  |
+-----------+--------+------------+
Solved by XY-Wing 26-68-28 pivoted in r3c8; r3c7<>2.
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RobertRattley



Joined: 24 Jun 2007
Posts: 118
Location: Australia
PostPosted: Tue Feb 12, 2013 2:14 pm    Post subject: Reply with quote
Yes.

I got to the same "after basics" point, and then spotted an x wing. I was so sure it would lead to an xy wing that I lost lots of time before I spotted the xy wing that had been there all the time! No need for the x wing. One step.
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