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

    MichalMarsalek (he/him) 🇨🇿

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    104 / 123 Holes

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    11 Holes Authored

    12 Days of Christmas
    24th 68th 3rd 35th2nd 984th 14th
    24 Game
    6th 3rd 9th
    99 Bottles of Beer
    23rd 11th 4th
    Abundant Numbers
    11th 5th 49th4th
    Abundant Numbers (Long)
    5th 5th 3rd
    Arabic to Roman
    38th 6th
    Arithmetic Numbers
    4th 26th 3rd 5th 24th
    Arrows
    Ascending Primes
    3rd 3rd 6th
    ASCII Table
    4th 34th 4th 4th 227th
    brainfuck
    3rd
    Catalan Numbers
    3rd 5th 2nd 241st
    Catalan’s Constant
    3rd 3rd 2nd
    Christmas Trees
    3rd 68th 33rd 8th 15th2nd 189th
    Collatz
    5th 49th 23rd 4th 1st 37th
    CSS Colors
    27th 1st 95th
    Cubes
    4th 10th 2nd 2nd 24th
    Day of Week
    44th 3rd 10th 103rd202nd
    DFA Simulator
    15th 18th 4th 24th
    Diamonds
    3rd 29th 5th 3rd 118th
    Divisors
    22nd 37th 14th 2nd 1st
    Emirp Numbers
    10th 35th 2nd 7th 213th
    Emirp Numbers (Long)
    3rd 25th 2nd 6th 132nd
    Emojify
    5th
    Evil Numbers
    19th 4th 12th 397th
    Evil Numbers (Long)
    5th 5th 12th 176th
    Factorial Factorisation
    5th 3rd 5th 181st
    Farey Sequence
    9th 84th
    Fibonacci
    19th311th179th 141st9th195th571st46th1st22nd60th126th 186th 199th
    Fizz Buzz
    105th 80th 43rd 1,540th
    Foo Fizz Buzz Bar
    9th 7th 11th
    Forsyth–Edwards Notation
    3rd 43rd
    Fractions
    36th 3rd 162nd
    Game of Life
    5th
    Gijswijt’s Sequence
    3rd 2nd 13th
    Happy Numbers
    11th 3rd 10th
    Happy Numbers (Long)
    4th 4th 7th 292nd
    Hexdump
    4th
    Intersection
    4th
    Inventory Sequence
    7th 2nd 7th 131st
    ISBN
    3rd 5th 134th
    Jacobi Symbol
    5th 101st
    Kolakoski Constant
    3rd 2nd 2nd
    Kolakoski Sequence
    12th 3rd 8th 256th
    Leap Years
    12th 21st 3rd 44th14th 54th
    Levenshtein Distance
    11th
    Leyland Numbers
    2nd 2nd
    ln 2
    3rd 3rd 3rd
    Look and Say
    5th 5th 9th
    Lucky Numbers
    3rd 2nd 4th 135th
    Lucky Tickets
    5th
    Mandelbrot
    105th
    Maze
    4th
    Medal Tally
    26th 4th 55th
    Morse Decoder
    Morse Encoder
    4th
    Musical Chords
    2nd 55th
    N Queens
    5th 38th
    Niven Numbers
    23rd 37th 3rd 31st1st 76th
    Niven Numbers (Long)
    4th 3rd 15th 286th
    Number Spiral
    10th 4th 5th
    Odious Numbers
    15th 4th 30th15th 300th
    Odious Numbers (Long)
    5th 5th 12th 109th
    Ordinal Numbers
    7th 6th 3rd 258th
    Pangram Grep
    4th
    Pascal’s Triangle
    12th 8th 1st 294th
    Pernicious Numbers
    16th 3rd 29th 324th
    Pernicious Numbers (Long)
    5th 3rd 12th
    Poker
    3rd
    Polyominoes
    6th 2nd 8th
    Prime Numbers
    20th 6th 1st 134th
    Prime Numbers (Long)
    5th 8th 11th 447th
    Proximity Grid
    5th
    QR Decoder
    3rd
    Quine
    3rd 11th 72nd
    Recamán
    3rd 3rd 4th 124th
    Repeating Decimals
    3rd
    Reverse Polish Notation
    3rd 142nd
    Reversi
    5th
    Rijndael S-box
    15th 2nd 5th
    Rock-paper-scissors-Spock-lizard
    4th
    Roman to Arabic
    10th 78th
    Rule 110
    21st 3rd 8th
    Seven Segment
    4th
    SI Units
    10th 2nd 2nd 20th
    Sierpiński Triangle
    17th 3rd 4th 136th
    Smith Numbers
    3rd 3rd 4th 82nd
    Spelling Numbers
    90th 2nd 60th
    Star Wars Opening Crawl
    2nd
    Sudoku
    💎
    Sudoku (Fill-in)
    3rd
    Ten-pin Bowling
    5th
    Time Distance
    18th 💎 28th
    Tongue-twisters
    13th 2nd 5th 78th
    Transpose Sentence
    25th 5th 19th
    United States
    Vampire Numbers
    2nd 2nd 2nd 141st
    Van Eck Sequence
    10th 3rd 3rd 209th
    Zodiac Signs
    2nd 52nd
    γ
    3rd 3rd 3rd
    λ
    7th 3rd 2nd 52nd
    π
    13th8th134th48th59th 4th 210th104th44th7th 18th 467th 37th44th
    τ
    7th 4th 5th
    φ
    8th 4th 3rd 96th
    √2
    8th 4th 3rd 101st
    𝑒
    9th 5th 7th 36th