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July27 VH
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Deb



Joined: 30 Jun 2008
Posts: 8

PostPosted: Sun Aug 03, 2008 9:48 pm    Post subject: Well, NOW I Get It Reply with quote

I hadn't realized that about the computer hint, but it makes sense, of course -- you can hardly "see" removing a candidate from a multi-candidate cell. Thanks very much for taking the time to educate me.
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keith



Joined: 19 Sep 2005
Posts: 3355
Location: near Detroit, Michigan, USA

PostPosted: Sun Aug 03, 2008 10:14 pm    Post subject: Reply with quote

Quote:
nataraj



Joined: 03 Aug 2007
Posts: 641
Location: Vienna, Austria

Nataraj,

Happy anniversary!

Keith
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keith



Joined: 19 Sep 2005
Posts: 3355
Location: near Detroit, Michigan, USA

PostPosted: Sun Aug 03, 2008 10:32 pm    Post subject: Reply with quote

Marty R. wrote:
I have no idea of what logic the hint used.


In Deb's grid there is an XY-wing 69 59 56 in C13. There is another 69 56 59 in C23. Then, look where 9 must be in C2. Making a hidden pair 69 in C1. Solving R5C2 as 4.

Deb, get yourself a copy of Sudoku Susser. A great learning tool.

Best wishes,

Keith
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nataraj



Joined: 03 Aug 2007
Posts: 1048
Location: near Vienna, Austria

PostPosted: Sun Aug 03, 2008 10:49 pm    Post subject: Reply with quote

I had not realized ... it's been a full year now. And I had such a great time.

Thanks, keith and thanks to all the nice people on this site!

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Deb



Joined: 30 Jun 2008
Posts: 8

PostPosted: Mon Aug 04, 2008 1:00 pm    Post subject: Thanks, Keith Reply with quote

Sudoku Susser it is. And thanks for saving my hair. Deb
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