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

    alasdair-greenland

    15,744
    15,350
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    20 / 123 Holes

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    1 / 62 Langs

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    12 / 98 Cheevos

    📅

    12 Days of Christmas
    247th
    Collatz
    276th
    Divisors
    1,927th
    Evil Numbers
    3,471st
    Fibonacci
    4,185th
    Fizz Buzz
    23rd
    Foo Fizz Buzz Bar
    552nd
    Happy Numbers
    1,089th
    Happy Numbers (Long)
    713th
    Kolakoski Sequence
    1,060th
    Leap Years
    284th
    Leyland Numbers
    758th
    Look and Say
    257th
    Niven Numbers
    654th
    Pascal’s Triangle
    1,142nd
    Pernicious Numbers
    2,382nd
    Prime Numbers
    720th
    Quine
    2,174th
    Recamán
    740th
    Tongue-twisters
    827th