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au tough 4/11/12 vh

 
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arkietech



Joined: 31 Jul 2008
Posts: 1834
Location: Northwest Arkansas USA
PostPosted: Wed Apr 11, 2012 5:38 am    Post subject: au tough 4/11/12 vh Reply with quote
time for a vh
Code:
 *-----------*
 |...|..9|2..|
 |.3.|..2|.86|
 |...|1.4|...|
 |---+---+---|
 |.4.|...|..5|
 |..9|...|4..|
 |1..|...|.7.|
 |---+---+---|
 |...|4.6|...|
 |85.|2..|.3.|
 |..2|9..|...|
 *-----------*
Play/print online
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Clement



Joined: 24 Apr 2006
Posts: 1111
Location: Dar es Salaam Tanzania
PostPosted: Wed Apr 11, 2012 6:54 pm    Post subject: au tough 4/11/12 Reply with quote
After the Basics
Code:

+----------------+--------------+------------+
| 567  1678 1578 | 38   368 9   | 2   4   37 |
| 9    3    4    | 5    7   2   | 1   8   6  |
| 2    678  78   | 1    368 4   | 5   9   37 |
+----------------+--------------+------------+
| 367  4    378  | 3678 9   1   | 368 2   5  |
| 3567 678  9    | 3678 2   358 | 4   16  18 |
| 1    2    358  | 368  4   358 | 368 7   9  |
+----------------+--------------+------------+
| 37   9    137  | 4    58  6   | 78  15  2  |
| 8    5    6    | 2    1   7   | 9   3   4  |
| 4    17   2    | 9    358 38  | 678 156 18 |
+----------------+--------------+------------+
XY-Wing 158 pivoted in r7c8; r9c56<>8 solves it.
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Marty R.



Joined: 12 Feb 2006
Posts: 5770
Location: Rochester, NY, USA
PostPosted: Wed Apr 11, 2012 7:24 pm    Post subject: Reply with quote
Same, but it was a lot of work populating the grid and then dealing with an excessive number of polyvalue cells. Laughing
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