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Unlucky 13th

 
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Earl



Joined: 30 May 2007
Posts: 677
Location: Victoria, KS
PostPosted: Fri Jul 13, 2007 10:39 pm    Post subject: Unlucky 13th Reply with quote
I got luck on the Friday 13th VH, but then I came across this one and my luck ran out. "Hint" says that R7C1 is <1> Why?

Thanks,

Earl

Code:

+-------------+------------+------------+
| 3   479 679 | 1   2  47  | 5   67 8   |
| 2   479 1   | 469 8  5   | 3   67 49  |
| 689 5   789 | 349 69 347 | 149 2  149 |
+-------------+------------+------------+
| 89  6   489 | 5   3  2   | 478 1  47  |
| 5   1   28  | 7   4  6   | 28  9  3   |
| 7   3   24  | 8   1  9   | 24  5  6   |
+-------------+------------+------------+
| 169 2   5   | 34  69 34  | 179 8  179 |
| 19  89  3   | 2   7  18  | 6   4  5   |
| 4   789 679 | 69  5  18  | 19  3  2   |
+-------------+------------+------------+

Play this puzzle online at the Daily Sudoku site
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Marty R.



Joined: 12 Feb 2006
Posts: 5770
Location: Rochester, NY, USA
PostPosted: Fri Jul 13, 2007 11:57 pm    Post subject: Re: Unlucky 13th Reply with quote
Earl wrote:
I got luck on the Friday 13th VH, but then I came across this one and my luck ran out. "Hint" says that R7C1 is <1> Why?

Thanks,

Earl

Code:

+-------------+------------+------------+
| 3   479 679 | 1   2  47  | 5   67 8   |
| 2   479 1   | 469 8  5   | 3   67 49  |
| 689 5   789 | 349 69 347 | 149 2  149 |
+-------------+------------+------------+
| 89  6   489 | 5   3  2   | 478 1  47  |
| 5   1   28  | 7   4  6   | 28  9  3   |
| 7   3   24  | 8   1  9   | 24  5  6   |
+-------------+------------+------------+
| 169 2   5   | 34  69 34  | 179 8  179 |
| 19  89  3   | 2   7  18  | 6   4  5   |
| 4   789 679 | 69  5  18  | 19  3  2   |
+-------------+------------+------------+

Play this puzzle online at the Daily Sudoku site


You've got locked candidates on 9 in boxes 1 and 7. After doing the eliminations therefrom, you get here, where there is a typical move for these puzzles:

Code:
+-------------+------------+------------+
| 3   479 679 | 1   2  47  | 5   67 8   |
| 2   47  1   | 469 8  5   | 3   67 49  |
| 68  5   78  | 349 69 347 | 149 2  149 |
+-------------+------------+------------+
| 89  6   489 | 5   3  2   | 478 1  47  |
| 5   1   28  | 7   4  6   | 28  9  3   |
| 7   3   24  | 8   1  9   | 24  5  6   |
+-------------+------------+------------+
| 16  2   5   | 34  69 34  | 179 8  179 |
| 19  89  3   | 2   7  18  | 6   4  5   |
| 4   78  67  | 69  5  18  | 19  3  2   |
+-------------+------------+------------+
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Earl



Joined: 30 May 2007
Posts: 677
Location: Victoria, KS
PostPosted: Sat Jul 14, 2007 12:26 am    Post subject: unlucky 13 Reply with quote
Maryt,

Thanks.
So elementary!
How could I not see it?
Must be the 13th.

Earl
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