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Apr 7 VH

 
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Clement



Joined: 24 Apr 2006
Posts: 1110
Location: Dar es Salaam Tanzania

PostPosted: Sat Apr 06, 2013 10:08 pm    Post subject: Apr 7 VH Reply with quote

Code:

+------------+--------------+-------------+
| 5   248 *48 | 24   9  6    | 1    3  7   |
| 1   7   9  | 2345 25 235  | 6    8  24  |
| #24  6   3  | 7    8  1    | 29   5  249 |
+------------+--------------+-------------+
| 39  1   2  | 35   4  359  | 8    7  6   |
| 389 58  6  | 23   7  2389 | 4    19 159 |
| 489 458 7  | 1    6  89   | 3    2  59  |
+------------+--------------+-------------+
| 6   3   45 | 8    25 2457 | 2579 19 129 |
| *28  9   5-8 | 6    1  257  | 257  4  3   |
| 7   24  1  | 9    3  245  | 25   6  8   |
+------------+--------------+-------------+
XY-Wing 28-24-48 pivoted in r3c1; r8c3<>8 solves it.
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RobertRattley



Joined: 24 Jun 2007
Posts: 118
Location: Australia

PostPosted: Tue Apr 09, 2013 2:47 pm    Post subject: Reply with quote

Yes.

Those who like to work from the bottom up find another xy wing: 245 pinching box 9 cell 1 on 5. But unfortunately that doesn't seem to help.
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George Woods



Joined: 28 Mar 2006
Posts: 304
Location: Dorset UK

PostPosted: Fri Apr 12, 2013 9:57 am    Post subject: w wing solution Reply with quote

I know it is late for a comment. I have been away etc.. anyway another solution is a W wing 24s in Blocks 2 and 7 operating on 4s in col 3 knocks out the 2 in r1c2 and so gives a solution!
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