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

    mauro-1 🇮🇹

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    20 / 123 Holes

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    1 / 62 Langs

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    14 / 99 Cheevos

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    Abundant Numbers
    621st
    Arabic to Roman
    52nd
    Divisors
    760th
    Evil Numbers
    732nd
    Fibonacci
    939th
    Fizz Buzz
    1,391st
    Happy Numbers
    340th
    Kolakoski Sequence
    198th
    Leap Years
    425th
    Niven Numbers
    477th
    Odious Numbers
    509th
    Ordinal Numbers
    183rd
    Pangram Grep
    249th
    Pernicious Numbers
    324th
    Prime Numbers
    583rd
    Quine
    72nd
    Recamán
    179th
    Seven Segment
    37th
    United States
    Van Eck Sequence
    125th
    π
    315th