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

    lucipas

    3,523
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    3,514
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    ⛳

    6 / 123 Holes

    🔣

    2 / 62 Langs

    🏆

    9 / 99 Cheevos

    📅

    Collatz
    666
    Fibonacci
    491648
    Fizz Buzz
    589
    Leap Years
    618
    Niven Numbers
    459
    Niven Numbers (Long)
    534