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Aug 15 VH

 
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roaa



Joined: 18 Apr 2009
Posts: 112
Location: Sweden
PostPosted: Sat Aug 15, 2015 8:34 am    Post subject: Aug 15 VH Reply with quote
The XY 136, pivot r4c8, gives r5c3=2, which solves it.
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bat999



Joined: 09 Jul 2015
Posts: 55
Location: UK
PostPosted: Sat Aug 15, 2015 8:52 am    Post subject: Reply with quote
Code:
.---------------.------------.------------------.
| 89   b89   5  | 6  3   1   |  7     4    2    |
| 2     6    7  | 4  5   8   |  1     9    3    |
| 4     3    1  | 9  7   2   |  8     6    5    |
:---------------+------------+------------------:
| 19    459  36 | 2  8   7   |  35-9  13   1469 |
| 178  b58   26 | 3  49  49  | c25    78   16   |
| 789  b489  23 | 5  1   6   | c23    78  a49   |
:---------------+------------+------------------:
| 6     2    8  | 1  49  349 | c39    5    7    |
| 3     1    9  | 7  6   5   |  4     2    8    |
| 5     7    4  | 8  2   39  |  6     13   1-9  |
'---------------'------------'------------------'
(9=4)r6c9 - (4=895)r156c2 - (5=239)r567c7 => -9 r4c7,r9c9; stte
Cool
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dongrave



Joined: 06 Mar 2014
Posts: 564
PostPosted: Sat Aug 15, 2015 6:28 pm    Post subject: Reply with quote
Roaa's XY wing is the only 'standard solution' (i.e. using just wings) that I see. I noticed that the 49 UR type 1 in r57c56 also solves it but of course us traditionalists would never use a UR for a puzzle on this site. Very Happy
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