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danw
Joined: 31 Jul 2012
Posts: 16
Location: Phoenixville, PA USA
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 Posted: Sat Feb 14, 2015 11:17 am Post subject: Feb 14 VH |
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I found the following one step solution:
| Quote: | | XY-wing 45-6 pivoted in r6c9; r4c1<>6, maybe stte but not sure yet |
DanW |
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hughwill
Joined: 05 Apr 2010
Posts: 424
Location: Birmingham UK
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| Posted: Sat Feb 14, 2015 2:07 pm Post subject: Re: Feb 14 VH |
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| danw wrote: | I found the following one step solution:
| Quote: | | XY-wing 45-6 pivoted in r6c9; r4c1<>6, |
maybe stte but not sure yet
DanW |
It is indeed, Dan. I think you can always check by pressing the Grade button
after putting the move in. If it doesn't say Very Hard you're done.
After Basics
| Code: |
+---------+---------+------------+
| 24 3 7 | 8 25 1 | 45 9 6 |
| 8 5 6 | 7 9 4 | 1 2 3 |
| 24 1 9 | 3 25 6 | 457 457 8 |
+---------+---------+------------+
| 16 2 14 | 9 3 5 | 8 46 7 |
| 56 7 8 | 46 1 2 | 9 3 45 |
| 3 9 45 | 46 8 7 | 456 1 2 |
+---------+---------+------------+
| 15 8 15 | 2 47 3 | 467 467 9 |
| 7 4 3 | 5 6 9 | 2 8 1 |
| 9 6 2 | 1 47 8 | 3 457 45 |
+---------+---------+------------+
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Play this puzzle online at the Daily Sudoku site |
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dongrave
Joined: 06 Mar 2014
Posts: 572
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| Posted: Sat Feb 14, 2015 2:17 pm Post subject: |
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| I'm sure Dan meant that the pivot was at r5c9 (instead of r6c9). There's also a 56-4 XY wing with pivot at r5c1 so r6c4<>4 which also solves it. |
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danw
Joined: 31 Jul 2012
Posts: 16
Location: Phoenixville, PA USA
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| Posted: Sat Feb 14, 2015 4:54 pm Post subject: |
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| Thanks Don for correcting my typo on pivot. |
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Marty R.
Joined: 12 Feb 2006
Posts: 5770
Location: Rochester, NY, USA
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| Posted: Sat Feb 14, 2015 8:27 pm Post subject: |
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| Also one (45-6) pivoted in r6c3=> r5c4<>6 |
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