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Apr 27 VH

 
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RobertRattley



Joined: 24 Jun 2007
Posts: 118
Location: Australia

PostPosted: Tue Apr 26, 2016 8:32 pm    Post subject: Apr 27 VH Reply with quote

xyz wing pivot row 3 column 1,
xy wing pivot row 3 column 9
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Clement



Joined: 24 Apr 2006
Posts: 1111
Location: Dar es Salaam Tanzania

PostPosted: Tue Apr 26, 2016 11:08 pm    Post subject: April 27 VH Reply with quote

Code:

+------------+--------+-----------+
| 13  9  23  | 5  7 8 | 4  123 6  |
| 157 46 456 | 14 2 3 | 9  17  8  |
| 137 8  234 | 14 6 9 | 37 5   12 |
+------------+--------+-----------+
| 4   36 36  | 9  1 7 | 2  8   5  |
| 2   5  8   | 6  3 4 | 1  9   7  |
| 9   1  7   | 2  8 5 | 6  4   3  |
+------------+--------+-----------+
| 35  2  345 | 7  9 6 | 8  13  14 |
| 6   34 9   | 8  5 1 | 37 237 24 |
| 8   7  1   | 3  4 2 | 5  6   9  |
+------------+--------+-----------+

Alternatively
XY-Wing 17-3 pivoted in r2c8; r8c7<>3 opens
XY-wing 12-4 pivoted in r3c9; r7c3<>4; stte
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Marty R.



Joined: 12 Feb 2006
Posts: 5770
Location: Rochester, NY, USA

PostPosted: Wed Apr 27, 2016 1:32 pm    Post subject: Reply with quote

I also started with the aforementioned XYZ-Wing.
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dongrave



Joined: 06 Mar 2014
Posts: 568

PostPosted: Wed Apr 27, 2016 5:18 pm    Post subject: Reply with quote

I used the 123 XYZ Wing with pivot at r1c8 (the one with pincers at r3c9 and r7c8). I thought at first that it solved it - but I don't see it now. Looks like I need another VH move?
Update: Looks like my XYZ Wing is the worst. It didn't solve it even after my next VH move.
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