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Dec 21 VH

 
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Clement



Joined: 24 Apr 2006
Posts: 1110
Location: Dar es Salaam Tanzania

PostPosted: Tue Dec 20, 2011 10:45 pm    Post subject: Dec 21 VH Reply with quote

XY-Wing 369 pivoted in r6c9; r4c5<>9 solves it.
Also Type 1 UR 59; r3c6=3.
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arkietech



Joined: 31 Jul 2008
Posts: 1834
Location: Northwest Arkansas USA

PostPosted: Wed Dec 21, 2011 6:36 am    Post subject: Reply with quote

Code:
 *-----------------------------------------------------------*
 | 7     4     1     | 6     2    *59    | 3     8    *59    |
 | 9     8     35    | 1     7     35    | 6     2     4     |
 | 35    2     6     | 4     8     3-59  | 1     7    *59    |
 |-------------------+-------------------+-------------------|
 | 35    6     7     | 2     59    1     | 4     39    8     |
 | 8     59    2     | 3     4569  46    | 7     69    1     |
 | 1     39    4     | 7     69    8     | 2     5     36    |
 |-------------------+-------------------+-------------------|
 | 2     1     8     | 9     46    7     | 5     346   36    |
 | 46    7     9     | 5     3     46    | 8     1     2     |
 | 46    35    35    | 8     1     2     | 9     46    7     |
 *-----------------------------------------------------------*
unique rectangle 59 r3c6<>59
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hughwill



Joined: 05 Apr 2010
Posts: 422
Location: Birmingham UK

PostPosted: Wed Dec 21, 2011 11:22 am    Post subject: Dec 21 VH Reply with quote

The 359 XY wing centred on R4C1 also does the trick. Almost a self-solving VH!
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