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Apr 22 VH

 
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yeoks



Joined: 16 May 2010
Posts: 33
PostPosted: Tue Apr 22, 2014 7:17 am    Post subject: Apr 22 VH Reply with quote
After basics
Code:

+--------------+-------------------+------------+
| 89 2    689  | 579   59    4     | 567 3   1  |
| 7  1469 3    | 159   1259  569   | 8   245 56 |
| 5  146  146  | 8     123   367   | 467 247 9  |
+--------------+-------------------+------------+
| 1  4789 5    | 2     6     89    | 347 478 37 |
| 3  6789 6789 | 459   4589  589   | 67  1   2  |
| 2  468  468  | 3     7     1     | 9   458 56 |
+--------------+-------------------+------------+
| 6  1379 179  | 14579 13459 2     | 357 57  8  |
| 89 3789 2    | 579   3589  35789 | 1   6   4  |
| 4  5    178  | 6     138   378   | 2   9   37 |
+--------------+-------------------+------------+

Play this puzzle online at the Daily Sudoku site

XYZ Wing 567 pivoted in r1c7; r3c7<>6 which opens up another
XYZ Wing 347 pivoted r4c7; r5c7<>7.
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arkietech



Joined: 31 Jul 2008
Posts: 1834
Location: Northwest Arkansas USA
PostPosted: Tue Apr 22, 2014 12:54 pm    Post subject: Reply with quote
Code:
 *--------------------------------------------------------------------*
 | 89     2      689    | 579    59     4      | 567    3      1      |
 | 7      1469   3      | 159    1259   569    | 8      245    56     |
 | 5      146    146    | 8      123    367    | 467    247    9      |
 |----------------------+----------------------+----------------------|
 | 1      4789   5      | 2      6      89     | 347    478   a37     |
 | 3      6789   6789   | 459    4589   589    |a67     1      2      |
 | 2      468    468    | 3      7      1      | 9      48-5  a56     |
 |----------------------+----------------------+----------------------|
 | 6      1379   179    | 1479   1349   2      | 357   b57     8      |
 | 89     3789   2      | 579    3589   35789  | 1      6      4      |
 | 4      5      178    | 6      138    378    | 2      9     b37     |
 *--------------------------------------------------------------------*
(5=3)r46c9,r5c7-(3=5)r9c9,r7c8 => -5r6c8; ste
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kuskey



Joined: 10 Dec 2008
Posts: 141
Location: Pembroke, NH
PostPosted: Tue Apr 22, 2014 7:21 pm    Post subject: Apr 22 VH Reply with quote
I found a 569 XYZ wing centered on r2c6. This wing, followed by yeoks two wings, works as does yeoks two wings alone. But I have not yet found any other combination that works.

Another fun puzzle.
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