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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
    727
    Fizz Buzz
    900
    Leap Years
    568
    Niven Numbers
    766
    Niven Numbers (Long)
    590
    Odious Numbers
    458
    Odious Numbers (Long)
    459
    Ordinal Numbers
    445
    Pangram Grep
    402
    Prime Numbers
    554
    Prime Numbers (Long)
    651