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norwag
Joined: 11 Jan 2011 Posts: 6
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Posted: Tue Jan 11, 2011 7:13 am Post subject: Jan 10 H |
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I am stuck!
Code: | +-----------------+----------+---------------+
| 168 178 3 | 68 4 5 | 1678 9 2 |
| 12568 1578 4 | 68 27 9 | 1678 678 3 |
| 2689 789 78 | 1 27 3 | 678 5 4 |
+-----------------+----------+---------------+
| 3589 2 58 | 7 35 4 | 568 1 689 |
| 59 579 6 | 2 1 8 | 3 4 79 |
| 1358 4 1578 | 9 35 6 | 578 2 78 |
+-----------------+----------+---------------+
| 7 6 9 | 5 8 2 | 4 3 1 |
| 4 158 2 | 3 6 17 | 9 78 578 |
| 158 3 158 | 4 9 17 | 2 678 5678 |
+-----------------+----------+---------------+ |
The hint is to put 8 in R4C3 and I don't see it and the Help can't explain why. Can someone out there explain please? Thanks! |
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Ema Nymton
Joined: 17 Apr 2009 Posts: 89
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Posted: Tue Jan 11, 2011 11:06 am Post subject: |
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In row 5, a '5' must be in column 1 or column 2 otherwise no '5' in row. Thus r4c3 cannot be '5'.
Ema Nymton
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norwag
Joined: 11 Jan 2011 Posts: 6
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Posted: Tue Jan 11, 2011 4:23 pm Post subject: |
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Oh so obvious now. Thanks for your help! |
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