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Non-unique puzzle(s?) at about.com

 
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keith



Joined: 19 Sep 2005
Posts: 3165
Location: near Detroit, Michigan, USA

PostPosted: Sun Feb 19, 2006 3:23 am    Post subject: Non-unique puzzle(s?) at about.com Reply with quote

Tracy wrote:

Quote:


I know some people who do puzzles with multiple solutions because they get many puzzles for the price of one and for the challenge of finding ALL the possible solutions for a particular puzzle. Maybe those kinds of puzzles need to have a different name.



I think the name is "non-unique Sudokus".

Anyway, about.com is an old website that, a year ago, was bought by the New York Times. Some time ago I went looking for puzzles, and found their link to "extra-challenging" Sudoku puzzles:

http://puzzles.about.com/library/sudoku/blindexx.htm

I was surprised to discover that the first of their puzzles is not unique!

http://puzzles.about.com/library/sudoku/qprsudokux01.htm

(This site has annoying advertising and popups.)

They have posted solutions to their "extra-challenging" puzzles, except for the first twelve. Maybe these 12 are all not unique?

I kind of lost interest in this source of puzzles when I found the first was not unique, but maybe others will be interested.

Keith
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keith



Joined: 19 Sep 2005
Posts: 3165
Location: near Detroit, Michigan, USA

PostPosted: Sun Apr 09, 2006 5:10 pm    Post subject: Non-Unique Puzzles Fixed Reply with quote

I sent an e-mail to about.com. They have fixed the non-unique puzzles.

Keith

Quote:


> Dave,
>
> Did you fix the previous problem with the extra-challenging puzzles?
> On February 18, 2006, I noticed that the first puzzles had multiple
> solutions, and no solutions were posted for the first few puzzles on
> about.com.
>
> Now, I see the puzzles have unique solutions, and the solutions are
> posted. The link is
>
> http://puzzles.about.com/library/sudoku/qprsudokux01.htm
>
> If you tell me the previous problem is fixed, I will correct my post
> on a web discussion board.
>
> Keith
>
>
>
hi keith,
thanks for writing.
yes, i replaced all the faux-sudoku with single-solution puzzles.
all the best
dave
btw, where's the web discussion board?

-- ===========================
Dave Fisher
About Puzzles
puzzles.about.com

www.About.com
About.com is part of The New York Times Company

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Puzzles Guide at About.co
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PostPosted: Mon Apr 10, 2006 4:31 pm    Post subject: Sorry about the annoying ads Reply with quote

Yes, About.com has some annoying ads and popups but the content is free and I do my best to supply you with quality content. TPTB have to monetize that content and, unfortunately, the result is not always pretty.

Just so you know... all SuDoku puzzles are now single-solution puzzles. If you find one that isn't, please, let me know and I'll correct it.
Happy puzzling!
Dave Smile
http://puzzles.about.com
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