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

    fkantelberg

    57,681
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    77 / 123 Holes

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    13 / 62 Langs

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    28 / 98 Cheevos

    📅

    12 Days of Christmas
    1,309th
    99 Bottles of Beer
    751st
    Abundant Numbers
    1,060th
    Abundant Numbers (Long)
    284th
    Arabic to Roman
    664th
    Arithmetic Numbers
    250th
    Arrows
    334th
    Ascending Primes
    665th
    ASCII Table
    794th
    brainfuck
    457th
    Card Number Validation
    449th
    Catalan Numbers
    577th
    Catalan’s Constant
    390th
    Christmas Trees
    1,211th
    Collatz
    2,776th739th2,013th 971st
    CSS Colors
    600th
    Cubes
    651st
    Day of Week
    487th
    Diamonds
    686th
    Divisors
    28th
    Emirp Numbers
    1,234th
    Emirp Numbers (Long)
    570th
    Emojify
    507th
    Evil Numbers
    217th
    Evil Numbers (Long)
    112th
    Factorial Factorisation
    402nd
    Farey Sequence
    780th
    Fibonacci
    7,957th7,133rd4,079th4,812th5,784th3,780th7,537th5,694th 5,514th1,234th8,675th5,314th
    Fizz Buzz
    769th
    Foo Fizz Buzz Bar
    11th
    Forsyth–Edwards Notation
    490th
    Fractions
    736th
    Gijswijt’s Sequence
    608th
    Happy Numbers
    1,035th
    Happy Numbers (Long)
    651st
    Hexdump
    318th
    Intersection
    337th
    Inventory Sequence
    794th
    ISBN
    821st
    Jacobi Symbol
    361st
    Kaprekar Numbers
    531st
    Kolakoski Constant
    306th
    Kolakoski Sequence
    375th
    Leap Years
    1,553rd 3,479th
    Levenshtein Distance
    739th
    Leyland Numbers
    549th
    ln 2
    380th
    Lucky Numbers
    673rd
    Lucky Tickets
    397th
    Mandelbrot
    359th
    Medal Tally
    422nd
    Niven Numbers
    1,952nd
    Niven Numbers (Long)
    615th
    Odious Numbers
    186th
    Odious Numbers (Long)
    161st
    Ordinal Numbers
    1,582nd 258th 3rd
    Pangram Grep
    272nd
    Partition Numbers
    552nd
    Pascal’s Triangle
    49th
    Pernicious Numbers
    1,385th
    Pernicious Numbers (Long)
    547th
    Prime Numbers
    1,996th 950th
    Prime Numbers (Long)
    210th
    Proximity Grid
    430th
    Quine
    552nd
    Repeating Decimals
    364th
    Reverse Polish Notation
    489th
    Seven Segment
    743rd
    Time Distance
    322nd
    United States
    830th
    Van Eck Sequence
    620th
    Zodiac Signs
    440th
    π
    109th
    τ
    204th
    φ
    349th
    √2
    537th
    𝑒
    566th