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Dec 6 VH

 
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Clement



Joined: 24 Apr 2006
Posts: 1111
Location: Dar es Salaam Tanzania
PostPosted: Sat Dec 05, 2009 10:38 pm    Post subject: Dec 6 VH Reply with quote
XY-Wing-<46>-<24>-<26> eliminating 6 in r4c9 solves the puzzle.
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keith



Joined: 19 Sep 2005
Posts: 3355
Location: near Detroit, Michigan, USA
PostPosted: Sun Dec 06, 2009 11:29 pm    Post subject: Reply with quote
After basics:
Code:
+-------------------+-------------------+-------------------+
| 9     1248  17    | 2458  478   12478 | 6     25    3     |
| 6     24    5     | 9     34    234   | 7     1     8     |
| 27    128   3     | 2568  678   1278  | 25    9     4     |
+-------------------+-------------------+-------------------+
| 34    13    9     | 46    2     5     | 8     7     16    |
| 78    5     17    | 3     68    9     | 4     26    126   |
| 48    6     2     | 7     1     48    | 35    35    9     |
+-------------------+-------------------+-------------------+
| 5     7     8     | 24    9     234   | 1     2346  26    |
| 23    9     4     | 1     5     6     | 23    8     7     |
| 1     23    6     | 248   3478  23478 | 9     234   5     |
+-------------------+-------------------+-------------------+

There is an X-wing on 2 in C17, and XY-wings 2-34 R9C5, and 24-6 R4C9.

Only the last (as pointed out by Clement) solves it.

Keith
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Wendy W



Joined: 04 Feb 2008
Posts: 144
PostPosted: Mon Dec 07, 2009 10:51 pm    Post subject: Reply with quote
Yep, quick and easy. That's the way I solved it, too, Clement.
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