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nataraj
Joined: 03 Aug 2007
Posts: 1048
Location: near Vienna, Austria
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 Posted: Wed Sep 05, 2007 6:15 am Post subject: Sept 5 nvh |
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almost thought this one could be solved with just basic moves.
Just before the end - therefore very easy actually - two ways to go:xy wing or UR.
Both sove the puzzle immediately.
Only few cells left - can't miss the UR, xy wing a little harder to see.
not very hard IMHO. |
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David
Joined: 02 Jun 2006
Posts: 58
Location: Bedford, UK
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| Posted: Wed Sep 05, 2007 8:01 am Post subject: |
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| Yes, fairly easy today. I didn't see any other options other than the Ur and xy wing either. |
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TKiel
Joined: 22 Feb 2006
Posts: 292
Location: Kalamazoo, MI
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| Posted: Wed Sep 05, 2007 10:55 am Post subject: |
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| There was a W-wing that solved it too. |
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Johan
Joined: 25 Jun 2007
Posts: 206
Location: Bornem Belgium
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| Posted: Wed Sep 05, 2007 11:19 am Post subject: |
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| Like nataraj mentioned, not so VH, the UR was very obvious to spot. |
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Captain Pete
Joined: 09 Jun 2007
Posts: 55
Location: Oley, PA
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| Posted: Wed Sep 05, 2007 1:24 pm Post subject: |
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| OK... for the UR-challenged, which cells contain the UR? |
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Johan
Joined: 25 Jun 2007
Posts: 206
Location: Bornem Belgium
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| Posted: Wed Sep 05, 2007 2:40 pm Post subject: |
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| Quote: | | OK... for the UR-challenged, which cells contain the UR? |
To avoid the deadly [45] pattern in R68C45, R6C5 must be <6>. |
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cgordon
Joined: 04 May 2007
Posts: 769
Location: ontario, canada
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| Posted: Wed Sep 05, 2007 6:42 pm Post subject: |
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| I did find a naked 4 in Box 9 - which I thought was kind of rare. Then it was just the UR on 45s already mentioned. Didn't see the need for the xy wing. |
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cgordon
Joined: 04 May 2007
Posts: 769
Location: ontario, canada
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| Posted: Wed Sep 05, 2007 6:46 pm Post subject: |
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| ....sorry - I see it was a UR or an XY wing - not both. |
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nataraj
Joined: 03 Aug 2007
Posts: 1048
Location: near Vienna, Austria
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| Posted: Wed Sep 05, 2007 8:17 pm Post subject: |
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Now, here's what I got:
| Code: |
+--------------------------+--------------------------+--------------------------+
| 2 56 4 | 9 7 56 | 13 8 13 |
| 57 9 8 | 1 3 4 | 2 57 6 |
| 1 3 67 | 8 2 56 | 9 57 4 |
+--------------------------+--------------------------+--------------------------+
| 57 4 2 | 3 56 17 | 8 16 9 |
| 8 #16 367 | 2 9 17 | 4 -1 36 5 |
| 9 -1 56 #36 | *45 *456 8 | 7 2 #13 |
+--------------------------+--------------------------+--------------------------+
| 3 2 5 | 7 1 9 | 6 4 8 |
| 6 8 9 | *45 *45 2 | 13 13 7 |
| 4 7 1 | 6 8 3 | 5 9 2 |
+--------------------------+--------------------------+--------------------------+
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with the UR marked *
and the xy-wing marked #
where is the W-wing? |
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Marty R.
Joined: 12 Feb 2006
Posts: 5770
Location: Rochester, NY, USA
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| Posted: Wed Sep 05, 2007 9:19 pm Post subject: |
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| Quote: | | where is the W-wing? |
In your posted grid, 1s in r6c2 and r6c9 connect the 16 pairs. |
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nataraj
Joined: 03 Aug 2007
Posts: 1048
Location: near Vienna, Austria
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| Posted: Thu Sep 06, 2007 6:06 am Post subject: |
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... and the '17's in c6 connect them, too.
seems all I was looking at were the '13' pairs
clearly I must have had a very bad day yesterday.
Thanks, Marty! |
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