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

    bricknellj

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    12 Days of Christmas
    7th 32nd
    24 Game
    22nd
    99 Bottles of Beer
    6th 48th
    Abundant Numbers
    34th 27th
    Abundant Numbers (Long)
    16th 32nd
    Arabic to Roman
    24th
    Arithmetic Numbers
    24th
    Arrows
    52nd
    Ascending Primes
    26th
    ASCII Table
    7th 15th
    Billiards
    38th
    brainfuck
    20th
    Card Number Validation
    40th
    Catalan Numbers
    1st
    Catalan’s Constant
    28th 29th
    Christmas Trees
    4th 18th
    Collatz
    7th
    CSS Colors
    13th
    Cubes
    18th
    Day of Week
    1st
    DFA Simulator
    36th
    Diamonds
    8th 7th
    Divisors
    1st
    Emirp Numbers
    31st 46th
    Emirp Numbers (Long)
    36th
    Emojify
    47th
    Evil Numbers
    8th 1st
    Evil Numbers (Long)
    1st
    Factorial Factorisation
    28th
    Farey Sequence
    58th
    Fibonacci
    6th47th1st
    Fizz Buzz
    58th
    Foo Fizz Buzz Bar
    1st
    Forsyth–Edwards Notation
    30th
    Fractions
    50th
    Game of Life
    8th
    Gijswijt’s Sequence
    45th
    Happy Numbers
    30th 1st
    Happy Numbers (Long)
    23rd
    Hexdump
    56th
    Hilbert Curve
    26th
    Intersection
    35th
    Inventory Sequence
    47th
    ISBN
    32nd
    Jacobi Symbol
    31st
    Kaprekar Numbers
    41st
    Kolakoski Constant
    27th 27th
    Kolakoski Sequence
    7th 19th
    Leap Years
    10th 14th
    Levenshtein Distance
    76th
    Leyland Numbers
    25th 8th
    ln 2
    81st
    Look and Say
    20th 22nd
    Lucky Numbers
    23rd
    Lucky Tickets
    47th
    Mahjong
    12th
    Mandelbrot
    9th
    Maze
    21st
    Medal Tally
    12th
    Minesweeper
    11th
    Morse Decoder
    17th
    Morse Encoder
    3rd 26th
    Musical Chords
    14th
    N Queens
    14th
    Niven Numbers
    29th 39th
    Niven Numbers (Long)
    42nd
    Number Spiral
    9th
    Odious Numbers
    10th 1st
    Odious Numbers (Long)
    1st
    Ordinal Numbers
    69th
    PalindromemordnilaP
    10th
    Pangram Grep
    60th
    Partition Numbers
    36th
    Pascal’s Triangle
    1st
    Pernicious Numbers
    4th 94th
    Pernicious Numbers (Long)
    65th
    Poker
    7th
    Polyominoes
    26th
    Prime Numbers
    27th39th82nd
    Prime Numbers (Long)
    51st
    Proximity Grid
    15th
    QR Decoder
    13th
    Quine
    1st
    Recamán
    25th 60th
    Repeating Decimals
    24th
    Reverse Polish Notation
    52nd42nd
    Reversi
    20th
    Rijndael S-box
    23rd
    Rock-paper-scissors-Spock-lizard
    23rd
    Roman to Arabic
    33rd
    ROT13
    85th
    Rule 110
    33rd
    Scrambled Sort
    7th
    Set
    45th
    Seven Segment
    37th
    SI Units
    12th
    Sierpiński Triangle
    4th 17th
    Smith Numbers
    19th 6th
    Spelling Numbers
    29th
    Star Wars GPT
    22nd
    Star Wars Opening Crawl
    16th
    Sudoku
    2nd
    Sudoku (Fill-in)
    9th
    Ten-pin Bowling
    17th
    Tic-tac-toe
    5th
    Time Distance
    32nd
    Tongue-twisters
    36th
    Topological Sort
    27th
    Tower of Hanoi
    10th
    Transpose Sentence
    19th
    Trinomial Triangle
    50th
    United States
    77th
    Vampire Numbers
    20th 55th
    Van Eck Sequence
    23rd
    Zeckendorf Representation
    25th
    Zodiac Signs
    19th
    γ
    48th
    λ
    42nd 28th
    π
    54th 40th
    τ
    41st 51st
    φ
    37th 48th
    √2
    40th 1st
    𝑒
    48th 1st