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Dec 18 VH

 
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Clement



Joined: 24 Apr 2006
Posts: 668
Location: Dar es Salaam Tanzania

PostPosted: Sat Dec 17, 2011 11:08 pm    Post subject: Dec 18 VH Reply with quote

XYZ-Wing 256 with apex in r1c1 solves it by setting r1c2<>5.
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arkietech



Joined: 31 Jul 2008
Posts: 1719
Location: Northwest Arkansas USA

PostPosted: Sun Dec 18, 2011 8:20 am    Post subject: Reply with quote

Code:
 *--------------------------------------------------------------------*
 | 256    45     9      | 8      3      245    | 56     1      7      |
 | 3      1      468    | 7      45     245    | 9      258    4568   |
 | 25     4578   478    | 19     19     6      | 35     258    3458   |
 |----------------------+----------------------+----------------------|
 | 8      37-9   5      | 1349   1479  *349    | 237    6      23     |
 | 19     2      137    | 39     6      8      | 357    4      35     |
 | 4      6      37     | 2      57     35     | 8      9      1      |
 |----------------------+----------------------+----------------------|
 | 159    34589  1348   | 6      489   *349    | 125    7      258    |
 | 16     458    2      | 45     48     7      | 16     3      9      |
 | 7     *3589   368    |*359    2      1      | 4      58     568    |
 *--------------------------------------------------------------------*
 kite 9
 (9)r9c2=(9)r9c4-(9)r7c6=(9)r4c6 => r4c2<>9
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George Woods



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

PostPosted: Thu Dec 22, 2011 10:06 pm    Post subject: er Reply with quote

Presumably related to the Kite we have an ER in 9 in box 7 so the SL in 9 in col6 denies a 9 in r4c2 ( otherwise there would be nowhere for a 9 i bocx 7)
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