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Oct 29 VH

 
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Clement



Joined: 24 Apr 2006
Posts: 686
Location: Dar es Salaam Tanzania

PostPosted: Mon Oct 28, 2013 10:34 pm    Post subject: Oct 29 VH Reply with quote

Code:

+-------------------+------------+-------------+
| 6    13789  139   | 38 2  3789 | 4    5  *37  |
| 789  3789   5     | 4  6  3789 | 7-3   2  1   |
| 4    37     2     | 5  1  37   | 9    6  8   |
+-------------------+------------+-------------+
| 1789 123789 1349  | 23 45 6    | 2357 18 379 |
| 5    237    36    | 9  8  1    | 2367 37 4   |
| 189  12389  13469 | 7  45 23   | 2356 18 369 |
+-------------------+------------+-------------+
| 3    6      7     | 28 9  28   | 1    4  5   |
| 2    4      19    | 16 3  5    | 8    79 #67  |
| 19   5      8     | 16 7  4    | *36   39 2   |
+-------------------+------------+-------------+
XY-Wing 36-67-37 pivoted in r8c9; r2c7<>3; stte.
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hughwill



Joined: 05 Apr 2010
Posts: 227
Location: Birmingham UK

PostPosted: Tue Oct 29, 2013 9:17 am    Post subject: Oct 29 VH Reply with quote

Two 37 Y-wing one-steppers in boxes 3, 6 and 9 have the same
outcome as the 'double' 367-XY wing.
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Dart45



Joined: 16 Apr 2008
Posts: 17
Location: Canada

PostPosted: Tue Oct 29, 2013 12:32 pm    Post subject: Reply with quote

Regardless of whether R5C8=3 or=7, R1C9=3 solves it!
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