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Tough nut(real tough)

 
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martix

Joined: 13 Aug 2006
Posts: 1
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PostPosted: Sun Aug 13, 2006 10:54 pm    Post subject: Tough nut(real tough) Reply with quote

So here is one sudoku I found in some sheet of paper from a puzzle magazine just lying peacefully on my desk.
Click
Well, it um... kinda proved unsolvable.
Then I ran it on the solver above and Shocked Shocked This has been able to solve every single puzzle I put into it so far(even the unsolvables from sudoku.org) and this it couldn't solve! I'm kinda shocked.

P.S. I double/tripple checked if all the numbers are in the right place(and they are) and now tell me how to solve it without guessing(cuz I find that impossible at the moment).
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maria45

Joined: 16 Sep 2005
Posts: 2
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PostPosted: Mon Aug 14, 2006 11:49 am    Post subject: Reply with quote

Hello martix,

I fed this to a uniqueness-checker and it told me that there are multiple solutions.

Regards, Maria
_________________
meden agan.
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Jon

Joined: 20 Aug 2006
Posts: 7
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Location: Montreal

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PostPosted: Sun Aug 20, 2006 1:59 pm    Post subject: You are right! Reply with quote

My Sudoku Solver also reports that multiple solutions exist for that Sodoku. I Coded my sudoku in Java using a backtracking algorithm with sophisticated guessing. My solver is online and you'll need the Java plugin enabled if you want to use it, click here.
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