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Korky
Joined: 29 Mar 2006
Posts: 13
Location: Sheffield, UK
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 Posted: Wed Apr 05, 2006 9:29 am Post subject: Daily Telegraph Toughie 5/4/06 |
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Can anyone help with this? Draw/Play grades it as "too difficult".
[list=]
71x 62x x38
xxx x73 61x
3x6 xx1 972
6x7 2xx 153
125 367 849
43x x1x 726
861 452 397
x73 196 x8x
9xx 738 x61
[/list]
Difficult puzzles in the DT often require trial and error. Is this one of them? |
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keith
Joined: 19 Sep 2005
Posts: 3355
Location: near Detroit, Michigan, USA
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| Posted: Wed Apr 05, 2006 11:00 am Post subject: T&E Not Required |
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Look at the placement of the <4>'s in R8 and R9. Then, there are a couple of XY-wings (rooted in the same rows) that solve the puzzle.
Keith |
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Korky
Joined: 29 Mar 2006
Posts: 13
Location: Sheffield, UK
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| Posted: Wed Apr 05, 2006 2:12 pm Post subject: DT Toughie |
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| Thanks for your response, Keith. I'll have to work on this as I've never used xy-wings. |
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Korky
Joined: 29 Mar 2006
Posts: 13
Location: Sheffield, UK
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| Posted: Wed Apr 05, 2006 2:42 pm Post subject: DT Toughie |
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Done it! The 2/4/5 xy-wing eliminates 4 in r1c3, which makes it a 9. The rest is straightforward.
Thanks again Keith. |
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alanr555
Joined: 01 Aug 2005
Posts: 198
Location: Bideford Devon EX39
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| Posted: Fri Apr 07, 2006 10:57 pm Post subject: Re: Daily Telegraph Toughie 5/4/06 |
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> Difficult puzzles in the DT often require trial and error.
> Is this one of them?
They are also noted for having multiple solutions!!!
Thus, they are best avoided - unless one likes such things.
Alan Rayner BS23 2QT
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