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ravel
Joined: 21 Apr 2006
Posts: 536
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 Posted: Wed Dec 19, 2007 1:33 pm Post subject: Five techniques |
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By gsf
| Code: | +-------------------+
| . . . . 2 9 1 . . |
| . . . 6 . . . . . |
| 1 . 6 . . 5 8 . . |
| 4 . 1 . . . . 9 . |
| 5 . . . 8 . . . 7 |
| . 6 . . . . 5 . 3 |
| . . 8 4 . . 6 . 9 |
| . . . . . 7 . . . |
| . . 4 8 6 . . . . |
+-------------------+
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Without harder techniques i think, that (beside of basics) x/xy/xyz-wing, UR and a unique loop (type 3) are needed. |
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Earl
Joined: 30 May 2007
Posts: 677
Location: Victoria, KS
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| Posted: Wed Dec 19, 2007 9:33 pm Post subject: Five techniques |
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An xy-wing in boxes 8-9, and two serpentine xy-chains in boxes 4-9 will solve it. Not pretty, but it works.
Earl |
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keith
Joined: 19 Sep 2005
Posts: 3355
Location: near Detroit, Michigan, USA
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| Posted: Wed Dec 19, 2007 11:50 pm Post subject: |
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Ravel,
I was looking at the unique loops in R123 and hoping I could avoid the XYZ-wing at the end.
Will look again after dinner. Seems like a Medusa candidate to me!
Keith |
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