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Feb 12 VH

 
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roaa



Joined: 18 Apr 2009
Posts: 112
Location: Sweden
PostPosted: Thu Feb 12, 2015 9:17 am    Post subject: Feb 12 VH Reply with quote
The usual: An XY-wing 156 solves it.
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Lee



Joined: 10 Jun 2014
Posts: 24
Location: San Francisco
PostPosted: Thu Feb 12, 2015 1:57 pm    Post subject: Feb. 12 VH Reply with quote
After basics:

Code:

+-------------+-----------+------------+
| 159 3   4   | 7 569 2   | 156 8   16 |
| 59  2   6   | 8 1   59  | 4   7   3  |
| 7   8   15  | 4 56  3   | 9   156 2  |
+-------------+-----------+------------+
| 6   9   3   | 1 7   8   | 2   4   5  |
| 2   45  7   | 3 59  459 | 16  16  8  |
| 48  145 158 | 6 2   45  | 3   9   7  |
+-------------+-----------+------------+
| 15  6   2   | 9 8   7   | 15  3   4  |
| 48  14  189 | 5 3   6   | 7   2   19 |
| 3   7   59  | 2 4   1   | 8   56  69 |
+-------------+-----------+------------+


W-wing on 16's at r1c9 and r5c8 also does it.
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