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Apr 15 VH

 
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Clement



Joined: 24 Apr 2006
Posts: 666
Location: Dar es Salaam Tanzania

PostPosted: Sat Apr 14, 2012 10:30 pm    Post subject: Apr 15 VH Reply with quote

XY-Wing 129 pivoted in r4c8; r1c2<>9 solves it.
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George Woods



Joined: 28 Mar 2006
Posts: 232
Location: Dorset UK

PostPosted: Sun Apr 15, 2012 8:52 am    Post subject: does the xy wing need to be set up? Reply with quote

I used the xy wing that Clement describes, but to set it up I had to eliminate the 3 in r4c8 and that was done with a Wwing 23 acting on 2s in row 5
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Clement



Joined: 24 Apr 2006
Posts: 666
Location: Dar es Salaam Tanzania

PostPosted: Sun Apr 15, 2012 10:55 am    Post subject: Apr 15 VH Reply with quote

George Woods wrote:
I used the xy wing that Clement describes, but to set it up I had to eliminate the 3 in r4c8 and that was done with a Wwing 23 acting on 2s in row 5
After the Basics the Grid was as follows:-
Code:

+----------+----------+----------+
| 3  89  4 | 128 7 28 | 5  19 6  |
| 7  1   5 | 3   6 9  | 4  8  2  |
| 69 689 2 | 18  4 5  | 19 37 37 |
+----------+----------+----------+
| 15 29  8 | 7   3 4  | 6  12 59 |
| 15 7   3 | 9   2 6  | 18 4  58 |
| 29 4   6 | 5   8 1  | 7  23 39 |
+----------+----------+----------+
| 26 26  9 | 48  1 7  | 3  5  48 |
| 8  5   1 | 46  9 3  | 2  67 47 |
| 4  3   7 | 268 5 28 | 89 69 1  |
+----------+----------+----------+
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