The most difficult known Soduku

Discussion in 'After Hours Lounge (Off Topic)' started by Sam Posten, Jul 5, 2012.

  1. Sam Posten

    Sam Posten Moderator
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    Get crackin....
    http://www.telegraph.co.uk/science/science-news/9359579/Worlds-hardest-sudoku-can-you-crack-it.html
     

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