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Ema Nymton
Joined: 17 Apr 2009
Posts: 89
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 Posted: Mon Mar 14, 2011 3:33 pm Post subject: Pi Day Hard |
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| Code: |
+--------------+--------------+--------+
| 17 6 9 | 8 17 5 | 2 3 4 |
| 1478 137 2 | 13479 147 47 | 6 5 89 |
| 458 35 348 | 349 2 6 | 7 1 89 |
+--------------+--------------+--------+
| 2 13 34 | 14A 9 8 | 5 7 6 |
| 6 9 47 | 5 47 3 | 8 2 1 |
| 17 8 5 | 17B 6 2 | 4 9 3 |
+--------------+--------------+--------+
| 3 4 6 | 2 5 9 | 1 8 7 |
| 9 257 1 | 47C 8 47 | 3 6 25 |
| 578 257 78 | 6 3 1 | 9 4 25 |
+--------------+--------------+--------+
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In column 4, does the alignment of cells ABC remove the '1', '4', and '7' from r2c4?
Ema Nymton
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Marty R.
Joined: 12 Feb 2006
Posts: 5770
Location: Rochester, NY, USA
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| Posted: Mon Mar 14, 2011 3:35 pm Post subject: |
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| Yes. That is known as a naked triple and 147 is removed from all other cells in that column. |
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kragzy
Joined: 01 May 2007
Posts: 112
Location: Australia
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| Posted: Mon Mar 14, 2011 10:10 pm Post subject: |
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| The same naked triple occurs in Box 2 - with the same result. |
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