The world’s most challenging Sudoku puzzle

Evening brainteaser: Have a shot at the world’s hardest sudoku puzzle
Finnish mathematician Arto Inkala challenges you to a game of sudoku, the hardest one ever constructed. 
Give up? Here’s the answer.
Via
Finnish mathematician Arto Inkala challenges you to a game of sudoku, the hardest one ever constructed.
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One thought on “The world’s most challenging Sudoku puzzle

  1. Miroslav Balac says:

    Logic won supercomputer
    Using my Method I solved: “The world hardest Sudoku puzzle” in 58 minutes without guesswork. Before, I also solved AI Escargot in the same way and wrote about it to his publisher. The result is they offered that Dr. Inkala construct several most difficult puzzle for my book ( I have emails). I agree that the hardest one is not yet discovered.
    Miroslav Balac, author books: “Sudoku Don’t Do That” published
    “Mystery of Sudoku” not yet published

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