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Clement
Joined: 24 Apr 2006
Posts: 1111
Location: Dar es Salaam Tanzania
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 Posted: Sat Sep 24, 2011 11:13 pm Post subject: Sep 25 VH |
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| W-Wing 69 with strong link 6 in col 9 setting r9c3<>9 solves it. |
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Marty R.
Joined: 12 Feb 2006
Posts: 5770
Location: Rochester, NY, USA
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| Posted: Sun Sep 25, 2011 1:05 am Post subject: |
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| I tried to use just the standard VH moves and it took me an X-Wing on 6 and XY-Wing on 698. |
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George Woods
Joined: 28 Mar 2006
Posts: 304
Location: Dorset UK
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| Posted: Sun Sep 25, 2011 10:45 am Post subject: w wing |
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| I found it curious that the W-Wing in 69 could either use the 6s in col 2 or col 9! though of course the conclusion is the same |
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keith
Joined: 19 Sep 2005
Posts: 3355
Location: near Detroit, Michigan, USA
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| Posted: Sun Sep 25, 2011 12:13 pm Post subject: |
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After basics: | Code: | +----------------+----------------+----------------+
| 48 9 2 | 7 5 48 | 1 6 3 |
| 3 5 1 | 9 6 2 | 7 8 4 |
| 468 7 68 | 18 3 148 | 59 2 59 |
+----------------+----------------+----------------+
| 1 4 69 | 3 2 7 | 8 59 56 |
| 5 2 3 | 6 8 9 | 4 7 1 |
| 689 68 7 | 4 1 5 | 36 39 2 |
+----------------+----------------+----------------+
| 689 3 5689 | 158 7 18 | 2 4 69 |
| 7 1 4 | 2 9 6 | 35 35 8 |
| 2 68 5689 | 58 4 3 | 69 1 7 |
+----------------+----------------+----------------+ |
This grid has a UR 48 and patterns on 6: An X-wing and its Swordfish complement, and an XYZ-wing -689.
After the X-wing, there is a 6-89 XY-wing, bringing us to here: | Code: | +-------------+-------------+-------------+
| 4 9 2 | 7 5 8 | 1 6 3 |
| 3 5 1 | 9 6 2 | 7 8 4 |
| 6 7 8 | 1 3 4 | 59 2 59 |
+-------------+-------------+-------------+
| 1 4 69 | 3 2 7 | 8 59 56 |
| 5 2 3 | 6 8 9 | 4 7 1 |
| 89 68 7 | 4 1 5 | 36 39 2 |
+-------------+-------------+-------------+
| 89 3 569 | 58 7 1 | 2 4 69 |
| 7 1 4 | 2 9 6 | 35 35 8 |
| 2 68 59 | 58 4 3 | 69 1 7 |
+-------------+-------------+-------------+ |
Marty, I do not think your two moves solve it. There is a BUG+1, or the wings: XY-wing -589, or -689, or XYZ 56-9.
Keith |
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Clement
Joined: 24 Apr 2006
Posts: 1111
Location: Dar es Salaam Tanzania
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| Posted: Sun Sep 25, 2011 3:20 pm Post subject: Re: w wing |
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| George Woods wrote: | | I found it curious that the W-Wing in 69 could either use the 6s in col 2 or col 9! though of course the conclusion is the same |
It is because the 69 is strongly linked in 6 on either end in the BOXES and the Columns. It is normal. |
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Marty R.
Joined: 12 Feb 2006
Posts: 5770
Location: Rochester, NY, USA
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| Posted: Sun Sep 25, 2011 4:58 pm Post subject: |
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| Quote: | | Marty, I do not think your two moves solve it. |
Yep, I don't know what I did wrong but I see it needs another move. |
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