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kuskey
Joined: 10 Dec 2008
Posts: 141
Location: Pembroke, NH
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 Posted: Fri Mar 04, 2011 6:43 am Post subject: Mar 4 VH |
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| About all I could find was an X-Wing on 3 in c48 leading to r1c7 and r7c2<>3 and the solution. A type 4 UR on 67 took out the 6s in r6c14 but didn't lead anywhere although I have a feeling I'm missing something there. |
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Marty R.
Joined: 12 Feb 2006
Posts: 5770
Location: Rochester, NY, USA
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| Posted: Fri Mar 04, 2011 4:55 pm Post subject: |
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| This was a puzzle like years ago before the XY- and XYZ-Wings were introduced. Then an X-Wing was all that was needed to solve them. |
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Ema Nymton
Joined: 17 Apr 2009
Posts: 89
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| Posted: Sat Mar 05, 2011 11:02 am Post subject: Re: Mar 4 VH |
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| kuskey wrote: | | About all I could find was an X-Wing on 3 in c48 leading to r1c7 and r7c2<>3 and the solution. A type 4 UR on 67 took out the 6s in r6c14 but didn't lead anywhere although I have a feeling I'm missing something there. |
Can you put this into English for the rest of us?
| Code: |
+----------------+----------+--------------+
| 1 7 69 | 4 2 5 | 36 3689 368 |
| 3 4 8 | 9 7 6 | 5 12 12 |
| 2569 2569 569 | 8 1 3 | 4 69 7 |
+----------------+----------+--------------+
| 569 3569 2 | 56 8 19 | 136 7 4 |
| 67 8 4 | 67 3 12 | 9 5 12 |
| 5679 1 3569 | 567 4 29 | 8 236 36 |
+----------------+----------+--------------+
| 8 356 1356 | 2 9 4 | 7 136 356 |
| 26 236 7 | 1 5 8 | 236 4 9 |
| 4 259 159 | 3 6 7 | 12 18 58 |
+----------------+----------+--------------+
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FYI - Hint is r1c7 = '6'.
Ema Nymton
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keith
Joined: 19 Sep 2005
Posts: 3355
Location: near Detroit, Michigan, USA
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| Posted: Sat Mar 05, 2011 12:52 pm Post subject: |
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Squares R4C2 and R4C7 in row 4 and R8C2 and R8C7 in row 8 form a Simple X-Wing pattern on possibility <3>. All other instances of this possibility in columns 2 and 7 can be removed.
R1C7 - can remove <3> from <36> leaving <6>.
R7C2 - can remove <3> from <356> leaving <56>.
Keith |
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Ema Nymton
Joined: 17 Apr 2009
Posts: 89
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| Posted: Sat Mar 05, 2011 1:02 pm Post subject: |
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| keith wrote: | Squares R4C2 and R4C7 in row 4 and R8C2 and R8C7 in row 8 form a Simple X-Wing pattern on possibility <3>. All other instances of this possibility in columns 2 and 7 can be removed.
R1C7 - can remove <3> from <36> leaving <6>.
R7C2 - can remove <3> from <356> leaving <56>.
Keith |
Thank you very much. Brilliant when one sees it.
Again, thank you.
Ema Nymton
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