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    The Chess Move Validation hole will go live in approximately . Why not try and solve it ahead of time?

    xDragoxboi

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    6 / 133 Holes

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    1 / 65 Langs

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    6 / 116 Cheevos

    📅

    Leap Years
    782
    Look and Say
    841
    Lucky Numbers
    600
    Niven Numbers (Long)
    877
    Rule 110
    933
    Van Eck Sequence
    949