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  1. The Generation Lock

    The Generation Lock can be considered the world's hardest puzzle as it requires over 300 million moves to unlock.
    nerdable.com/trivia/whats-the-worlds-hardest-puzzle/
    nerdable.com/trivia/whats-the-worlds-hardest-puzzle/
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    The Hardest Logic Puzzle Ever - Wikipedia

    The Hardest Logic Puzzle Ever is a logic puzzle so called by American philosopher and logician George Boolos and published in The Harvard Review of Philosophy in 1996. Boolos' article includes multiple ways of solving the problem. A translation in Italian was published earlier in the newspaper La Repubblica, under the … See more

    Boolos credits the logician Raymond Smullyan as the originator of the puzzle and John McCarthy with adding the difficulty of not knowing what da and ja mean. Related … See more

    Boolos provided his solution in the same article in which he introduced the puzzle. Boolos states that the "first move is to find a god that you can … See more

    In A simple solution to the hardest logic puzzle ever, B. Rabern and L. Rabern offer a variant of the puzzle: a god, confronted with a paradox, will say neither ja nor da and instead … See more

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  8. What's the world's hardest puzzle? - HowStuffWorks

    The Isis Adventure, often dubbed the world's hardest game, starts as players find a way to open a round puzzle they can hold in their hands. Once inside, a key leads them on a search for a real hidden prize.

  9. The 24 Hardest Puzzles To Try in 2022 - SPY

    Nov 7, 2022 · The world’s hardest puzzles include challenging gradient puzzles and other unique designs that make your work extra difficult. The hardest puzzles ever are challenging in a variety of ways. Some use color (or …

  10. The Longest and Hardest Online Puzzle in the World! - TIM TANG

  11. 10 of the World’s Toughest Puzzles Solved in Record …

    Jul 9, 2024 · From Max Park’s lightning-fast Rubiks Cube solves to Shiyao Wang’s Sudoku mastery, these puzzlers have achieved things most of us can only dream of. Their accomplishments are not only impressive but also …

  12. Blue Eyes - The Hardest Logic Puzzle in the World - Solution - xkcd

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