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Clement
Joined: 24 Apr 2006 Posts: 1111 Location: Dar es Salaam Tanzania
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Posted: Thu Jan 24, 2013 11:20 pm Post subject: Jan 25 VH |
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Code: |
+----------------+----------------+---------------+
| 234689 28 3689 | 234 7 1 | 389 5 23489 |
| 5 1 39 | 234 8 239 | 7 6 2349 |
| 23489 7 389 | 6 249 5 | 1 39 23489 |
+----------------+----------------+---------------+
| 17-8 3 4 | 57 19 89 | 6 2 589 |
| 16-8 *58 1568 | 1234 1249 2389 | 389 7 389 |
| 7-8 9 2 | 57 6 38 | 4 1 358 |
+----------------+----------------+---------------+
| 139 #25 7 | 8 12 4 | 2359 39 6 |
| 139 4 139 | 12 5 6 | 239 8 7 |
| *28 6 58 | 9 3 7 | 25 4 1 |
+----------------+----------------+---------------+
| XY-Wing 28-25-58 pivoted in r7c2; r456c1<>8 solves it. |
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RobertRattley
Joined: 24 Jun 2007 Posts: 118 Location: Australia
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Posted: Sun Jan 27, 2013 4:45 pm Post subject: |
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Neat.
What I spotted was a different xy wing 258, same pivot but different pincers, whereby 8s are eliminated from column 3 creating a pair 39. |
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