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Dual (2)answers to sudoku ??? Is it possible???

 
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SOMAMASTER



Joined: 29 Apr 2011
Posts: 1

PostPosted: Fri Apr 29, 2011 3:10 pm    Post subject: Dual (2)answers to sudoku ??? Is it possible??? Reply with quote

I was doing a Sudoku from a book and my answere was correct and the published answer was correct. This is the first time this happened. Is it possible to have two correct answers to a puzzle. Very Happy Very Happy
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Marty R.



Joined: 12 Feb 2006
Posts: 5152
Location: Rochester, NY, USA

PostPosted: Fri Apr 29, 2011 3:57 pm    Post subject: Re: Dual (2)answers to sudoku ??? Is it possible??? Reply with quote

SOMAMASTER wrote:
I was doing a Sudoku from a book and my answere was correct and the published answer was correct. This is the first time this happened. Is it possible to have two correct answers to a puzzle. Very Happy Very Happy

There are people here who know a lot more about this than I do, but yes, it's possible to have two answers. However, most published puzzles have one unique solution, so it's possible that even though you had a correct solution per Sudoku rules, you didn't have the answer the puzzle constructor had in mind.
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Pat



Joined: 23 Feb 2010
Posts: 165

PostPosted: Sun May 01, 2011 8:18 am    Post subject: Reply with quote

SOMAMASTER wrote:

I was doing a Sudoku from a book
and my answere was correct
and the published answer was correct.

Is it possible to have two correct answers to a puzzle?
    two answers,
    or more,
    surely possible
    but hardly desirable.

      could you please tell us which book this is?
      and post the puzzle as printed?

        thanks!
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lundbf



Joined: 06 May 2012
Posts: 3

PostPosted: Sun May 06, 2012 10:56 pm    Post subject: Two answers to my sudoku puzzle Reply with quote

I, too, had an answer that was different than the published solution with a sudoku puzzle from"Super Sudoku Puzzles" Vol 10 published by Kappa. Since I have never heard of this happening before, I was wondering if I can post the unsolved puzzle, my solution and the published solution. If this is permissible, what is the best way to do this? Is it possible to post images?[/img]
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Marty R.



Joined: 12 Feb 2006
Posts: 5152
Location: Rochester, NY, USA

PostPosted: Mon May 07, 2012 12:08 am    Post subject: Reply with quote

Yes, you can post images. You can also post a grid. I wrote an article on how to post a properly aligned grid, here:

http://www.dailysudoku.co.uk/sudoku/forums/viewtopic.php?t=1905

P.S. Does the introduction to your book say anything about unique solutions?
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lundbf



Joined: 06 May 2012
Posts: 3

PostPosted: Mon May 07, 2012 12:21 am    Post subject: Never Mind Reply with quote

I found the reason why they were different. I had written out a duplicate of the puzzle after the first was wrong. One the duplicate, I forgot to include one of the printed numbers. It is very interesting how the absence of one number can allow for a totally different working answer... essentially one number juxtaposed between two boxes.
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lundbf



Joined: 06 May 2012
Posts: 3

PostPosted: Mon May 07, 2012 12:24 am    Post subject: Thank you Reply with quote

Thanks for your response! I see how to place a grid in a non HTML format, thanks to your posting.
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