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Another "technique" added to V Hard?

 
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George Woods



Joined: 28 Mar 2006
Posts: 235
Location: Dorset UK

PostPosted: Fri Oct 13, 2006 9:19 am    Post subject: Another "technique" added to V Hard? Reply with quote

Up to now I have assumed a V Hard at the crunch point would probably be sorted by an X wing. Today 13th Oct I used a DR?(deadly rectangle- answer must be unique). So maybe it can be solved by an X wing that I didn't see, or DR are now part of the repetoire!
Any comments?
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David Bryant



Joined: 29 Jul 2005
Posts: 559
Location: Denver, Colorado

PostPosted: Fri Oct 13, 2006 11:04 am    Post subject: I found an X-Wing Reply with quote

Hi, George!

We'll have to ask SamGJ to weigh in here about adding new techniques. I don't think you need to use anything beyond X-Wings to solve his puzzles, yet, but I'm not certain.

On the puzzle for 13 October, basic techniques brought me here.
Code:
*--------------------------------------------------------------------*
| 48     7      3      | 5      12468  246    | 124    9      1246   |
| 9      1      5      | 46     246    7      | 3      8      246    |
| 48     6      2      | 1348   9      34     | 14     457    1457   |
|----------------------+----------------------+----------------------|
| 2      9      1      | 7      3456   3456   | 8      345    345    |
| 7      4      8      | 9      235    235    | 12     6      1235   |
| 35     35     6      | 48     248    1      | 7      24     9      |
|----------------------+----------------------+----------------------|
| 356    2      4      | 36     7      356    | 9      1      8      |
| 16     8      7      | 2      16     9      | 5      34     34     |
| 135    35     9      | 134    1345   8      | 6      27     27     |
*--------------------------------------------------------------------*

I guess the "UR" you were talking about is in r69c12, where you must have a "1" at r9c1 to avoid the "deadly pattern".

There's an X-Wing (on "4") in r13c47 that will also crack this puzzle open. dcb
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