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

    jmerle 🇳🇱

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    92 / 123 Holes

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    49 / 62 Langs

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    54 / 99 Cheevos

    📅

    12 Days of Christmas
    14th 17th 22nd 34th 11th
    24 Game
    16th 5th
    99 Bottles of Beer
    29th 105th 8th
    Abundant Numbers
    19th 78th 6th
    Abundant Numbers (Long)
    10th 57th 6th
    Arabic to Roman
    36th 12th
    Arrows
    80th
    Ascending Primes
    91st
    ASCII Table
    18th 48th 8th
    brainfuck
    46th5th
    Card Number Validation
    144th
    Catalan Numbers
    16th 96th 306th 4th
    Catalan’s Constant
    18th 50th 138th 5th
    Christmas Trees
    24th 33rd 3rd
    Collatz
    18th 194th 10th
    CSS Colors
    41st 68th 5th
    Cubes
    11th 97th 5th
    Day of Week
    1st 61st 55th 7th
    Diamonds
    21st 44th 89th 4th
    Divisors
    33rd 1st 8th
    Emirp Numbers
    17th 117th 176th 4th
    Emirp Numbers (Long)
    10th 51st 3rd
    Emojify
    108th
    Evil Numbers
    23rd 23rd 135th 6th
    Evil Numbers (Long)
    11th 14th 38th 4th
    Factorial Factorisation
    176th
    Fibonacci
    26th 186th 27th
    Fizz Buzz
    173rd 97th 56th 57th 276th 42nd 11th 18th
    Foo Fizz Buzz Bar
    8th 52nd 19th 8th
    Forsyth–Edwards Notation
    36th
    Fractions
    46th 1st
    Game of Life
    63rd
    Gijswijt’s Sequence
    8th 10th 5th 7th 10th 39th 11th8th 129th 7th 4th 11th
    Happy Numbers
    13th 54th 150th 7th
    Happy Numbers (Long)
    11th 47th 3rd
    Hexdump
    78th
    Intersection
    25th
    Inventory Sequence
    15th 141st 4th
    ISBN
    46th
    Jacobi Symbol
    49th
    Kolakoski Constant
    20th17th27th19th17th42nd24th20th18th23rd12th16th16th9th6th14th17th20th21st14th 16th8th31st46th15th7th25th6th6th7th14th17th33rd8th135th12th14th34th12th7th7th7th9th6th8th4th10th
    Kolakoski Sequence
    22nd 109th 13th 6th
    Leap Years
    18th 377th 10th
    Levenshtein Distance
    16th
    Leyland Numbers
    18th 62nd 4th
    ln 2
    118th
    Look and Say
    9th 55th 4th
    Lucky Numbers
    13th 13th 58th 82nd 4th
    Lucky Tickets
    133rd
    Morse Decoder
    149th
    Morse Encoder
    139th
    N Queens
    39th
    Niven Numbers
    24th 289th 7th
    Niven Numbers (Long)
    16th 227th 6th
    Number Spiral
    17th 5th
    Odious Numbers
    23rd 25th 153rd 7th
    Odious Numbers (Long)
    12th 14th 154th 4th
    Ordinal Numbers
    47th 1st 7th
    Pangram Grep
    59th
    Pascal’s Triangle
    19th 95th 44th 8th
    Pernicious Numbers
    20th 145th 6th
    Pernicious Numbers (Long)
    15th 125th 6th
    Prime Numbers
    21st 266th 78th 405th 27th 7th
    Prime Numbers (Long)
    15th 573rd 32nd 6th
    Quine
    1st 1st 72nd
    Recamán
    18th 21st 5th
    Repeating Decimals
    11th 46th
    Reverse Polish Notation
    65th
    Rijndael S-box
    14th 3rd
    Rock-paper-scissors-Spock-lizard
    10th 105th
    Roman to Arabic
    49th
    ROT13
    105th 27th
    Rule 110
    17th 104th 286th 4th
    Seven Segment
    63rd
    SI Units
    22nd 3rd
    Sierpiński Triangle
    15th 4th
    Smith Numbers
    15th 67th 11th 4th
    Spelling Numbers
    84th
    Time Distance
    30th
    Tongue-twisters
    17th10th 71st 14th
    Transpose Sentence
    152nd
    United States
    133rd
    Vampire Numbers
    17th 49th 4th
    Van Eck Sequence
    15th 152nd 3rd
    Zeckendorf Representation
    26th
    γ
    17th 31st 76th 6th 5th
    λ
    27th 57th 119th 4th
    π
    25th 185th 215th 16th 5th
    τ
    24th 121st 18th 4th
    φ
    29th 124th 4th
    √2
    26th 109th 5th
    𝑒
    25th 94th15th 5th