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Apr 25 VH

 
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Clement



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

PostPosted: Fri Apr 24, 2015 10:02 pm    Post subject: Apr 25 VH Reply with quote

Code:

+---------------+---------+---------------+
| 8    137  4   | 6  27 9 | 1237 5   1237 |
| 1279 1279 169 | 5  27 3 | 8    4   1267 |
| 27   5    36  | 1  8  4 | 9    36  27   |
+---------------+---------+---------------+
| 7-9   6    2   | 8  5  1 | 37   *39  4    |
| 5    1479 19  | 47 3  2 | 167  169 8    |
| 3    147  8   | 47 9  6 | 5    2   17   |
+---------------+---------+---------------+
| 4    23   5   | 9  1  8 | 236  7   236  |
| 6    12   7   | 3  4  5 | 12   8   9    |
| *19   8    139 | 2  6  7 | 4    #13  5    |
+---------------+---------+---------------+
XY-Wing 13-9 pivoted in r9c8; r4c1<>9; stte
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hughwill



Joined: 05 Apr 2010
Posts: 422
Location: Birmingham UK

PostPosted: Sat Apr 25, 2015 11:59 am    Post subject: Apr 25 VH Reply with quote

Clement said:
Quote:
XY-Wing 13-9 pivoted in r9c8; r4c1<>9; stte


The same elimination can be made with a 19 W-wing.....
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rmireland



Joined: 21 Sep 2013
Posts: 33
Location: New Orleans

PostPosted: Sat Apr 25, 2015 1:02 pm    Post subject: Reply with quote

. . . or an X Wing in r39 eliminates the 3 in r4c8.
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Clement



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

PostPosted: Sat Apr 25, 2015 1:49 pm    Post subject: Apr 25 VH Reply with quote

The UR 47 in r56c24; r56c2<>7; also does it.
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