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

    alphafalfa

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    IT guy with exploratory nerding.

    67 / 123 Holes

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    14 / 62 Langs

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    31 / 98 Cheevos

    📅

    12 Days of Christmas
    295th
    99 Bottles of Beer
    635th
    Abundant Numbers
    871st 4,029th
    Abundant Numbers (Long)
    1,247th 2,124th
    Arabic to Roman
    809th
    Arithmetic Numbers
    1,209th
    Arrows
    415th
    Ascending Primes
    577th
    ASCII Table
    1,491st
    Billiards
    351st
    Card Number Validation
    685th
    Catalan Numbers
    1,554th 1,320th
    Catalan’s Constant
    1,201st
    Christmas Trees
    2,107th
    Collatz
    995th 1,722nd
    Cubes
    436th
    Day of Week
    957th
    Diamonds
    1,339th
    Divisors
    2,017th
    Emirp Numbers
    1,791st 1,027th
    Emirp Numbers (Long)
    803rd 807th
    Emojify
    452nd
    Evil Numbers
    4,000th 4,414th 3,505th
    Evil Numbers (Long)
    2,054th 2,201st 2,050th
    Factorial Factorisation
    1,168th
    Farey Sequence
    835th
    Fibonacci
    5,619th8,182nd 6,213th 8,673rd
    Fizz Buzz
    2,131st8,529th10,033rd10,542nd9,356th9,138th10,296th9,390th9,687th11,550th9,041st7,740th8,537th3,592nd
    Foo Fizz Buzz Bar
    746th 1,629th
    Fractions
    1,093rd
    Happy Numbers
    1,211th 2,044th
    Happy Numbers (Long)
    1,173rd 1,404th
    Intersection
    940th
    ISBN
    1,379th
    Jacobi Symbol
    462nd
    Kolakoski Constant
    1,226th
    Leap Years
    1,924th 4,039th
    Lucky Numbers
    909th
    Morse Decoder
    678th
    Morse Encoder
    703rd
    Niven Numbers
    3,170th 2,240th
    Niven Numbers (Long)
    1,754th 1,571st
    Number Spiral
    805th
    Odious Numbers
    3,245th 3,610th 3,173rd
    Odious Numbers (Long)
    1,877th 1,988th 1,872nd
    Ordinal Numbers
    1,425th
    PalindromemordnilaP
    639th
    Pangram Grep
    976th
    Pascal’s Triangle
    1,160th
    Pernicious Numbers
    2,518th 2,682nd
    Pernicious Numbers (Long)
    1,122nd 1,207th
    Prime Numbers
    2,288th 530th 3,284th
    Prime Numbers (Long)
    1,294th 431st 2,054th
    Quine
    4,604th
    Recamán
    1,134th
    Rijndael S-box
    611th
    Roman to Arabic
    919th
    Rule 110
    902nd
    Seven Segment
    489th
    Sierpiński Triangle
    829th
    Spelling Numbers
    380th
    Ten-pin Bowling
    339th
    Tongue-twisters
    312th
    Transpose Sentence
    767th
    United States
    Vampire Numbers
    957th
    π
    2,720th 818th
    τ
    669th