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Is there a solution...

 
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Marty R.



Joined: 12 Feb 2006
Posts: 5160
Location: Rochester, NY, USA

PostPosted: Mon Jul 02, 2007 4:44 pm    Post subject: Is there a solution... Reply with quote

...other than a chain, which easily solves it?

Code:

+-----------+-----------+------------+
| 8  69 69  | 2   1  7  | 5   4  3   |
| 3  24 1   | 48  49 5  | 289 7  6   |
| 5  24 7   | 348 6  39 | 129 89 128 |
+-----------+-----------+------------+
| 1  79 349 | 5   2  48 | 6   39 78  |
| 46 67 5   | 9   3  48 | 28  1  278 |
| 2  8  39  | 1   7  6  | 39  5  4   |
+-----------+-----------+------------+
| 9  3  46  | 46  8  1  | 7   2  5   |
| 46 1  8   | 7   5  2  | 34  36 9   |
| 7  5  2   | 346 49 39 | 148 68 18  |
+-----------+-----------+------------+

Play this puzzle online at the Daily Sudoku site
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keith



Joined: 19 Sep 2005
Posts: 3173
Location: near Detroit, Michigan, USA

PostPosted: Mon Jul 02, 2007 6:56 pm    Post subject: Reply with quote

Marty,

There is a loop which takes out <9> in R4C3, but that does not solve it.

Keith
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Mogulmeister



Joined: 03 May 2007
Posts: 695

PostPosted: Mon Jul 02, 2007 7:23 pm    Post subject: Reply with quote

How about an X-Y chain pincers at r4c9 and r9c8 which takes care of r9c9 ?
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Marty R.



Joined: 12 Feb 2006
Posts: 5160
Location: Rochester, NY, USA

PostPosted: Mon Jul 02, 2007 9:15 pm    Post subject: Reply with quote

Thanks for the responses. Very Happy
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