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April 27 VH

 
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roaa



Joined: 18 Apr 2009
Posts: 72
Location: Sweden

PostPosted: Sun Apr 27, 2014 8:15 am    Post subject: April 27 VH Reply with quote

An xy-wing 126 pivoted in r1c2 forces r3c5=1, which solves it.
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hughwill



Joined: 05 Apr 2010
Posts: 195
Location: Birmingham UK

PostPosted: Sun Apr 27, 2014 10:04 am    Post subject: April 27 VH Reply with quote

A 'basics done' diagram for those who like them:
Code:

+-------------+-----------+-------------+
| 7   16  5   | 9   4  12 | 8 3    126  |
| 28  189 3   | 6   7  5  | 4 19   129  |
| 26  169 4   | 8   12 3  | 5 7    1269 |
+-------------+-----------+-------------+
| 1   2   7   | 5   3  4  | 9 6    8    |
| 4   3   8   | 7   9  6  | 1 2    5    |
| 9   5   6   | 2   18 18 | 7 4    3    |
+-------------+-----------+-------------+
| 358 7   12  | 134 28 9  | 6 158  14   |
| 368 468 19  | 134 5  7  | 2 189  149  |
| 58  48  129 | 14  6  28 | 3 1589 7    |
+-------------+-----------+-------------+

Play this puzzle online at the Daily Sudoku site

A 'pair' to roaa's 126 XY-Wing pivots in r3c1. It looked as
though other one-step solutions exist, but I couldn't find any....

Hugh
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