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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 162nd
    24 Game
    40th
    99 Bottles of Beer
    6th 142nd
    Abundant Numbers
    34th 112th
    Abundant Numbers (Long)
    16th 94th
    Arabic to Roman
    79th
    Arithmetic Numbers
    71st
    Arrows
    60th
    Ascending Primes
    29th
    ASCII Table
    7th 64th
    Billiards
    49th
    brainfuck
    77th
    Card Number Validation
    61st
    Catalan Numbers
    1st
    Catalan’s Constant
    28th 46th
    Christmas Trees
    4th 90th
    Collatz
    106th
    CSS Colors
    20th
    Cubes
    70th
    Day of Week
    73rd
    DFA Simulator
    59th
    Diamonds
    8th 13th
    Divisors
    118th
    Emirp Numbers
    31st 15th
    Emirp Numbers (Long)
    71st
    Emojify
    46th
    Evil Numbers
    8th 1st
    Evil Numbers (Long)
    1st
    Factorial Factorisation
    47th
    Farey Sequence
    68th
    Fibonacci
    6th47th1st
    Fizz Buzz
    209th
    Foo Fizz Buzz Bar
    19th
    Forsyth–Edwards Notation
    59th
    Fractions
    92nd
    Game of Life
    35th
    Gijswijt’s Sequence
    68th
    Happy Numbers
    30th 49th
    Happy Numbers (Long)
    72nd
    Hexdump
    76th
    Hilbert Curve
    33rd
    Intersection
    102nd
    Inventory Sequence
    65th
    ISBN
    90th
    Jacobi Symbol
    68th
    Kaprekar Numbers
    45th
    Kolakoski Constant
    27th 49th
    Kolakoski Sequence
    7th 64th
    Leap Years
    10th 14th
    Levenshtein Distance
    99th
    Leyland Numbers
    25th 86th
    ln 2
    91st
    Look and Say
    20th 81st
    Lucky Numbers
    40th
    Lucky Tickets
    66th
    Mahjong
    21st
    Mandelbrot
    30th
    Maze
    39th
    Medal Tally
    37th
    Minesweeper
    23rd
    Morse Decoder
    45th
    Morse Encoder
    3rd 54th
    Musical Chords
    33rd
    N Queens
    41st
    Niven Numbers
    29th 39th
    Niven Numbers (Long)
    60th
    Number Spiral
    5th
    Odious Numbers
    10th 1st
    Odious Numbers (Long)
    1st
    Ordinal Numbers
    114th
    PalindromemordnilaP
    45th
    Pangram Grep
    116th
    Partition Numbers
    43rd
    Pascal’s Triangle
    22nd
    Pernicious Numbers
    4th 94th
    Pernicious Numbers (Long)
    78th
    Poker
    42nd
    Polyominoes
    36th
    Prime Numbers
    27th39th82nd
    Prime Numbers (Long)
    51st
    Proximity Grid
    29th
    QR Decoder
    42nd
    Quine
    1st
    Recamán
    25th 106th
    Repeating Decimals
    31st
    Reverse Polish Notation
    52nd77th
    Reversi
    30th
    Rijndael S-box
    45th
    Rock-paper-scissors-Spock-lizard
    55th
    Roman to Arabic
    64th
    ROT13
    103rd
    Rule 110
    40th
    Scrambled Sort
    37th
    Set
    55th
    Seven Segment
    84th
    SI Units
    33rd
    Sierpiński Triangle
    4th 30th
    Smith Numbers
    19th 51st
    Spelling Numbers
    72nd
    Star Wars GPT
    40th
    Star Wars Opening Crawl
    55th
    Sudoku
    25th
    Sudoku (Fill-in)
    32nd
    Ten-pin Bowling
    43rd
    Tic-tac-toe
    28th
    Time Distance
    66th
    Tongue-twisters
    108th
    Topological Sort
    38th
    Tower of Hanoi
    16th
    Transpose Sentence
    48th
    Trinomial Triangle
    59th
    United States
    90th
    Vampire Numbers
    20th 83rd
    Van Eck Sequence
    45th
    Zeckendorf Representation
    50th
    Zodiac Signs
    44th
    γ
    53rd
    λ
    42nd 56th
    π
    54th 61st
    τ
    41st 63rd
    φ
    37th 58th
    √2
    40th 1st
    𝑒
    48th 1st