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May 11 VH

 
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Clement



Joined: 24 Apr 2006
Posts: 663
Location: Dar es Salaam Tanzania

PostPosted: Thu May 10, 2012 10:46 pm    Post subject: May 11 VH Reply with quote

After the Basics
Code:

+------------+----------+------------+
| 24 28  248 | 7   5 1  | 39  6  39  |
| 6  9   3   | 2   8 4  | 1   5  7   |
| 1  7   5   | 9   6 3  | 8   2  4   |
+------------+----------+------------+
| 9  36  1   | 34  2 56 | 45  7  8   |
| 24 5   68  | 68  9 7  | 24  3  1   |
| 7  238 248 | 34  1 58 | 6   49 259 |
+------------+----------+------------+
| 3  126 7   | 168 4 68 | -259 8-9 259 |
| 8  4   9   | 5   3 2  | 7   1  6   |
| 5  126 26  | 168 7 9  | 234 48 23  |
+------------+----------+------------+
Two steps for me : XYZ-Wing 234 with its Apex in r9c7; r7c7<>2 opens
an XY-Wing 59 45 49 pivoted in r4c7; r7c8<>9 which solves it.
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Marty R.



Joined: 12 Feb 2006
Posts: 5152
Location: Rochester, NY, USA

PostPosted: Fri May 11, 2012 12:54 am    Post subject: Reply with quote

Same.
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tlanglet



Joined: 17 Oct 2007
Posts: 2461
Location: Northern California Foothills

PostPosted: Fri May 11, 2012 3:40 am    Post subject: Reply with quote

A short almost xy-wing does the deed.....

axy-wing(45-9)r4c7+r6c8/r7c7=(2)r7c7-r79c9=(2-9)r6c9=r6c8; r7c8<>9

Ted
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