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VH alternative

 
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Earl



Joined: 30 May 2007
Posts: 677
Location: Victoria, KS
PostPosted: Tue Oct 02, 2007 2:04 pm    Post subject: VH alternative Reply with quote
Since we have had a dirth of VH's recently, let me share a challenge which has some interesting moves.

Earl

Code:

+--------------+-------------+--------------+
| 1   8  2     | 37  47  9   | 6   3457 357 |
| 4   37 6     | 8   5   1   | 39  379  2   |
| 5   9  37    | 6   2   347 | 1   8    347 |
+--------------+-------------+--------------+
| 2   6  49    | 1   3   8   | 7   459  59  |
| 379 14 13479 | 2   479 5   | 349 6    8   |
| 379 5  8     | 79  6   47  | 2   1    349 |
+--------------+-------------+--------------+
| 379 14 14    | 379 8   6   | 5   2    379 |
| 8   37 379   | 5   1   2   | 349 3479 6   |
| 6   2  5     | 4   79  37  | 8   379  1   |
+--------------+-------------+--------------+

Play this puzzle online at the Daily Sudoku site
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nataraj



Joined: 03 Aug 2007
Posts: 1048
Location: near Vienna, Austria
PostPosted: Tue Oct 02, 2007 4:41 pm    Post subject: Reply with quote
wow, what a baby!

no singles, no hidden pairs, ...

I got some eliminations by color wings, but soon - stuck right here:
Code:

+--------------------------+--------------------------+--------------------------+
| 1       8       2        | 37      47      9        | 6       457     357      |
| 4       37      6        | 8       5       1        | 39      379     2        |
| 5       9       37       | 6       2       347      | 1       8       347      |
+--------------------------+--------------------------+--------------------------+
| 2       6       49       | 1       3       8        | 7       459     59       |
| 379     14      13479    | 2       479     5        | 349     6       8        |
| 379     5       8        | 79      6       47       | 2       1       349      |
+--------------------------+--------------------------+--------------------------+
| 379     14      14       | 379     8       6        | 5       2       379      |
| 8       37      379      | 5       1       2        | 349     3479    6        |
| 6       2       5        | 4       79      37       | 8       379     1        |
+--------------------------+--------------------------+--------------------------+


Seems I'm in for a long night ...

Thanks, Earl, great job!

edit: oops I just realized I posted almost the same grid (because I started without pencil marks ...) Embarassed The 3 in r1c8 goes away by this chain in "3"s: 18-14=36-96=98-18, thats a - ahem - skyscraper? no, turbot fish I guess.

Last edited by nataraj on Tue Oct 02, 2007 5:01 pm; edited 1 time in total
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nataraj



Joined: 03 Aug 2007
Posts: 1048
Location: near Vienna, Austria
PostPosted: Tue Oct 02, 2007 4:43 pm    Post subject: Reply with quote
wait, there's a swordfish ...
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nataraj



Joined: 03 Aug 2007
Posts: 1048
Location: near Vienna, Austria
PostPosted: Tue Oct 02, 2007 4:52 pm    Post subject: Reply with quote
right. r167 and c149 and 3 goes away in r5c1 and r3c9

some more color wings on 3 and 9 and finally done.
Three's the magic number in this one.

very tough puzzle! I loved it
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