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Oct 27 VH

 
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Marty R.



Joined: 12 Feb 2006
Posts: 5162
Location: Rochester, NY, USA

PostPosted: Sun Oct 27, 2013 5:01 am    Post subject: Oct 27 VH Reply with quote

Code:

+-------------+--------------+----------------+
| 17   17  8  | 4  5    2    | 6  39    39    |
| 3    9   2  | 7  16   16   | 5  48    48    |
| 5    6   4  | 3  8    9    | 2  1     7     |
+-------------+--------------+----------------+
| 167  8   57 | 9  1367 1367 | 4  35    2     |
| 1467 147 3  | 58 2    167  | 9  58    16    |
| 2    15  9  | 58 136  4    | 38 7     16    |
+-------------+--------------+----------------+
| 79   3   57 | 2  4    8    | 1  6     59    |
| 489  24  1  | 6  39   5    | 7  23489 3489  |
| 489  245 6  | 1  379  37   | 38 23489 34589 |
+-------------+--------------+----------------+

Play this puzzle online at the Daily Sudoku site

Limiting myself to standard VH moves, this was a rare three-stepper.

Quote:
1) XY-Wing (15-7), pivot r6c2
2) X-Wing (1), r24
3) XY-Wing (67-3), pivot r5c6
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kuskey



Joined: 10 Dec 2008
Posts: 127
Location: Pembroke, NH

PostPosted: Sun Oct 27, 2013 5:33 am    Post subject: Oct 27 VH Reply with quote

Marty, using your code its solved using just the xy-wings sans x-wing.
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arkietech



Joined: 31 Jul 2008
Posts: 1725
Location: Northwest Arkansas USA

PostPosted: Sun Oct 27, 2013 11:05 am    Post subject: Reply with quote

Code:
 *-----------------------------------------------------------------------------*
 | 17      17      8       | 4       5       2       | 6       39      39      |
 | 3       9       2       | 7       16      16      | 5       48      48      |
 | 5       6       4       | 3       8       9       | 2       1       7       |
 |-------------------------+-------------------------+-------------------------|
 | 167     8       57      | 9       1367   *1367    | 4       5-3     2       |
 | 1467    1457    3       | 58      2       167     | 9       58      1568    |
 | 2       15      9       | 58      136     4       |*38      7       13568   |
 |-------------------------+-------------------------+-------------------------|
 | 79      3       57      | 2       4       8       | 1       6       59      |
 | 489     24      1       | 6       39      5       | 7       23489   3489    |
 | 4789    2457    6       | 1       379    *37      |*38      234589  34589   |
 *-----------------------------------------------------------------------------*
Skyscraper 3r469cc67 => -3r4c8; ste
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Marty R.



Joined: 12 Feb 2006
Posts: 5162
Location: Rochester, NY, USA

PostPosted: Sun Oct 27, 2013 12:41 pm    Post subject: Re: Oct 27 VH Reply with quote

kuskey wrote:
Marty, using your code its solved using just the xy-wings sans x-wing.


Thanks. Like a dope, I missed the Locked Candidates after the 1st XY-Wing. Embarassed
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