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

    mamalakic

    6,443
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    6,246
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    ⛳

    11 / 123 Holes

    🔣

    1 / 62 Langs

    🏆

    10 / 99 Cheevos

    📅

    Collatz
    715
    Fizz Buzz
    885
    Leap Years
    551
    Niven Numbers
    739
    Niven Numbers (Long)
    560
    Odious Numbers
    438
    Odious Numbers (Long)
    442
    Ordinal Numbers
    465
    Pangram Grep
    476
    Prime Numbers
    543
    Prime Numbers (Long)
    629