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arkietech
Joined: 31 Jul 2008
Posts: 1834
Location: Northwest Arkansas USA
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 Posted: Thu Feb 23, 2012 7:10 pm Post subject: au 2/23/12 tough |
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| Code: | *-----------*
|...|7.3|.1.|
|6.4|...|...|
|...|9..|..8|
|---+---+---|
|.29|..7|...|
|8..|...|..4|
|...|3..|17.|
|---+---+---|
|7..|..8|...|
|...|...|3.6|
|.3.|5.1|...|
*-----------* |
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arkietech
Joined: 31 Jul 2008
Posts: 1834
Location: Northwest Arkansas USA
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| Posted: Fri Feb 24, 2012 6:21 pm Post subject: |
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| Code: | *--------------------------------------------------------------------*
| 259 589 258 | 7 46 3 | 46 1 59 |
| 6 1579 4 | 8 125 25 | 2579 2359 23579 |
| 13 157 37 | 9 12456 2456 | 24567 2456 8 |
|----------------------+----------------------+----------------------|
| 13 2 9 | 146 456 7 | 568 3568 35 |
| 8 17 37 | 126 2569 2569 | 2569 23569 4 |
| 45 456 56 | 3 8 29 | 1 7 29 |
|----------------------+----------------------+----------------------|
| 7 4569 256 | 246 3 8 | 2459 2459 1 |
| 2459 4589 1 | 24 7 249 | 3 24589 6 |
| 249 3 268 | 5 2469 1 | 24789 2489 279 |
*--------------------------------------------------------------------*
(6)r7c4=(6-9)r9c5=(9-4)r8c6=(4-6)r3c6=(6)r5c6 => r45c4<>6 |
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Marty R.
Joined: 12 Feb 2006
Posts: 5770
Location: Rochester, NY, USA
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| Posted: Fri Feb 24, 2012 7:28 pm Post subject: |
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| arkietech wrote: | | Code: | *--------------------------------------------------------------------*
| 259 589 258 | 7 46 3 | 46 1 59 |
| 6 1579 4 | 8 125 25 | 2579 2359 23579 |
| 13 157 37 | 9 12456 2456 | 24567 2456 8 |
|----------------------+----------------------+----------------------|
| 13 2 9 | 146 456 7 | 568 3568 35 |
| 8 17 37 | 126 2569 2569 | 2569 23569 4 |
| 45 456 56 | 3 8 29 | 1 7 29 |
|----------------------+----------------------+----------------------|
| 7 4569 256 | 246 3 8 | 2459 2459 1 |
| 2459 4589 1 | 24 7 249 | 3 24589 6 |
| 249 3 268 | 5 2469 1 | 24789 2489 279 |
*--------------------------------------------------------------------*
(6)r7c4=(6-9)r9c5=(9-4)r8c6=(4-6)r3c6=(6)r5c6 => r45c4<>6 |
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Dan, I tried this puzzle and couldn't do a thing with it. As usual, I can't follow the notation and don't see where r9c5 enters into the equation. However, I can see if r7c4<>6, then r8c6=9 which forces r5c6=6, making the eliminations shown. |
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JC Van Hay
Joined: 13 Jun 2010
Posts: 494
Location: Charleroi, Belgium
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| Posted: Fri Feb 24, 2012 7:30 pm Post subject: |
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H2 Wing  ...
(6=4)r1c5-4r3c6=(4-9)r8c6=9r9c5 => -6r9c5; stte |
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arkietech
Joined: 31 Jul 2008
Posts: 1834
Location: Northwest Arkansas USA
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| Posted: Fri Feb 24, 2012 9:27 pm Post subject: |
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| Marty R. wrote: |
Dan, I tried this puzzle and couldn't do a thing with it. As usual, I can't follow the notation and don't see where r9c5 enters into the equation. However, I can see if r7c4<>6, then r8c6=9 which forces r5c6=6, making the eliminations shown. |
r9c5 has a strong link on 6 to r7c4 and a strong link on 4 to r8c6 and is a link in the chain making the 6 pinchers. |
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arkietech
Joined: 31 Jul 2008
Posts: 1834
Location: Northwest Arkansas USA
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| Posted: Fri Feb 24, 2012 9:33 pm Post subject: |
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| JC Van Hay wrote: | H2 Wing ...
(6=4)r1c5-4r3c6=(4-9)r8c6=9r9c5 => -6r9c5; stte |
Nice find!  |
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