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Captain Pete
Joined: 09 Jun 2007
Posts: 55
Location: Oley, PA
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 Posted: Mon Aug 13, 2007 10:50 pm Post subject: 8/13 VH |
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| I thought I had this puzzle solved, but the door slammed as I thought I was closing it out. I think I finally solved it correctly using an XY chain beginning at C4R9 resulting in elimination of the 1 in C4R3. Is that how the gurus solved it? |
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TKiel
Joined: 22 Feb 2006
Posts: 292
Location: Kalamazoo, MI
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| Posted: Mon Aug 13, 2007 10:56 pm Post subject: |
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| Can't speak for the gurus, but what you describe would be called by most on this forum an XY-wing, which is the shortest form of XY-chain. |
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Marty R.
Joined: 12 Feb 2006
Posts: 5770
Location: Rochester, NY, USA
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| Posted: Tue Aug 14, 2007 12:11 am Post subject: |
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Not a guru...
I used a Type 2 Rectangle, which I don't know if it was necessary, and an XY-Wing on 37-31-71 finished it off. Many puzzles have multiple solution paths. |
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Johan
Joined: 25 Jun 2007
Posts: 206
Location: Bornem Belgium
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| Posted: Tue Aug 14, 2007 12:47 am Post subject: |
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Pete,
Like Marty said, some puzzles have diffirent solution paths.
There is a 4-cell xy-chain present in box 7 which ends in box 8 or vice versa.
Johan(none guru) |
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