Hardest Sudoku?

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5 Replies - 16932 Views - Last Post: 12 September 2012 - 08:59 AM

#1 Celerian

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Hardest Sudoku?

Posted 02 July 2012 - 08:00 AM

This Sudoku puzzle was created by a Finnish Mathematician named Arto Inkala. It has only one solution. I'm currently working on it myself. Enjoy.

Replies To: Hardest Sudoku?

#2 totgeburt

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Re: Hardest Sudoku?

Posted 05 July 2012 - 11:16 PM

i'm going to aswell

#3 Celerian

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Re: Hardest Sudoku?

Posted 10 July 2012 - 01:56 PM

Any luck so far? I've whittled down all my possibilities, but I'm left with only one box that has two possibilities. Each one after that has 3 or more and no easy deductions as to how to work it out.

When I have some time, I think I'm just going to break out the pencil, choose a path and follow it until one becomes incorrect.

#4 totgeburt

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Re: Hardest Sudoku?

Posted 10 July 2012 - 02:22 PM

that's what i did hahah. i havent completed it so far, i have a few boxes left it is hard.

#5 Roonil Wazlib

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Re: Hardest Sudoku?

Posted 04 August 2012 - 03:45 AM

It's bloody hard. I'm in half a mind to bring out my sudoku solver.

#6 alzy101

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Re: Hardest Sudoku?

Posted 12 September 2012 - 08:59 AM

I tried Sodoku once....
ONCE...

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