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Clement
Joined: 24 Apr 2006
Posts: 1111
Location: Dar es Salaam Tanzania
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 Posted: Mon Aug 31, 2015 10:45 pm Post subject: Sep 1 VH |
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| Code: |
+-------------+----------+----------+
| 4 9 8 | 3 1 2 | 6 5 7 |
| 2 5 6 | 8 9 7 | 4 1 3 |
| 7 1 3 | 6 4 5 | 9 8 2 |
+-------------+----------+----------+
| 58 3478 457 | 2 6 34 | 35 9 1 |
| 9 34 245 | 1 37 8 | 235 47 6 |
| 1 6 24 | 47 5 9 | 23 47 8 |
+-------------+----------+----------+
| 6 47 1 | 9 37 34 | 8 2 5 |
| 58 478 457 | 47 2 6 | 1 3 9 |
| 3 2 9 | 5 8 1 | 7 6 4 |
+-------------+----------+----------+
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XY-Wing 34-7 pivoted in r5c2; r7c5<>7; stte |
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George Woods
Joined: 28 Mar 2006
Posts: 304
Location: Dorset UK
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| Posted: Tue Sep 01, 2015 10:07 am Post subject: did it need any v hard moves |
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I did it twice but both times no advanced moves clements grid gives a 3 in Box 6
I looked again and found that I had used a BUG +1 -such an obvious move that I forgot I had used it! |
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bat999
Joined: 09 Jul 2015
Posts: 55
Location: UK
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| Posted: Tue Sep 01, 2015 12:41 pm Post subject: |
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| Code: | .-------------.-------------.-----------.
| 4 9 8 | 3 1 2 | 6 5 7 |
| 2 5 6 | 8 9 7 | 4 1 3 |
| 7 1 3 | 6 4 5 | 9 8 2 |
:-------------+-------------+-----------:
| 8 347 47 | 2 6 34 | 5 9 1 |
| 9 3-4 5 | 1 c37 8 | 2 d47 6 |
| 1 6 2 | 47 5 9 | 3 47 8 |
:-------------+-------------+-----------:
| 6 a47 1 | 9 b37 34 | 8 2 5 |
| 5 8 47 | 47 2 6 | 1 3 9 |
| 3 2 9 | 5 8 1 | 7 6 4 |
'-------------'-------------'-----------' |
(4=7)r7c2 - r7c5 = r5c5 - (7=4)r5c8 => -4 r5c2; stte
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dongrave
Joined: 06 Mar 2014
Posts: 568
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| Posted: Tue Sep 01, 2015 10:30 pm Post subject: |
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| You can also move the pivot of Clement's XY-Wing to r7c2 and use the 47-3 XY-Wing so r5c5<>3. That was a very easy 'very hard', wasn't it? |
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