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Jan 12 VH

 
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roaa



Joined: 18 Apr 2009
Posts: 112
Location: Sweden
PostPosted: Tue Jan 12, 2016 10:04 am    Post subject: Jan 12 VH Reply with quote
XY-wing 125, pivot r4c4, makes it.
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hughwill



Joined: 05 Apr 2010
Posts: 424
Location: Birmingham UK
PostPosted: Tue Jan 12, 2016 10:51 am    Post subject: Re: Jan 12 VH Reply with quote
Code:

+-----------+------------+-------------+
| 4   8  13 | 2  5    9  | 6   13  7   |
| 2   6  13 | 38 7    4  | 9   5   128 |
| 59  7  59 | 6  38   1  | 23  4   28  |
+-----------+------------+-------------+
| 7   3  59 | 15 129  6  | 8   12  4   |
| 8   19 2  | 4  19   7  | 5   6   3   |
| 6   15 4  | 38 1238 25 | 7   9   12  |
+-----------+------------+-------------+
| 19  29 6  | 7  12   3  | 4   8   5   |
| 13  4  8  | 15 6    25 | 123 7   9   |
| 135 25 7  | 9  4    8  | 123 123 6   |
+-----------+------------+-------------+

Play this puzzle online at the Daily Sudoku site
roaa wrote:
XY-wing 125, pivot r4c4, makes it.

Yes, and its 'twin' has a pivot at r6c6. There's also a 59-1 XY-Wing
which is also a double and also does it in one.

Hugh
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dongrave



Joined: 06 Mar 2014
Posts: 568
PostPosted: Tue Jan 12, 2016 11:08 pm    Post subject: Reply with quote
I just realized today that Hugh deliberately leaves some basics in his grids just to see if I'll catch them! I'm finally onto you Hugh! Laughing
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hughwill



Joined: 05 Apr 2010
Posts: 424
Location: Birmingham UK
PostPosted: Wed Jan 13, 2016 10:11 am    Post subject: Reply with quote
dongrave wrote:
I just realized today that Hugh deliberately leaves some basics in his grids just to see if I'll catch them! I'm finally onto you Hugh! Laughing


I can assure you that any mistakes I make are a true reflection
of my attention span, seriously limited throughout my life, and diminishing
fast as I get older.....
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