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    UnderKoen (he/him) 🇳🇱

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    📅

    12 Days of Christmas
    650th
    24 Game
    136th
    99 Bottles of Beer
    391st
    Abundant Numbers
    430th
    Abundant Numbers (Long)
    632nd
    Arabic to Roman
    442nd
    Arithmetic Numbers
    1,430th
    Arrows
    305th
    Ascending Primes
    432nd
    ASCII Table
    164th
    Billiards
    160th
    brainfuck
    294th
    Card Number Validation
    133rd
    Catalan Numbers
    720th
    Catalan’s Constant
    141st
    Christmas Trees
    2,230th
    Collatz
    1,996th
    CSS Colors
    441st
    Cubes
    66th
    Day of Week
    513th
    DFA Simulator
    208th
    Diamonds
    1,091st
    Divisors
    1,229th
    Emirp Numbers
    365th
    Emirp Numbers (Long)
    438th
    Emojify
    528th
    Evil Numbers
    853rd
    Evil Numbers (Long)
    1,076th
    Factorial Factorisation
    110th
    Farey Sequence
    298th
    Fibonacci
    2,430th
    Fizz Buzz
    2,009th
    Foo Fizz Buzz Bar
    1,029th
    Forsyth–Edwards Notation
    446th
    Fractions
    536th
    Game of Life
    160th
    Gijswijt’s Sequence
    148th
    Happy Numbers
    495th
    Happy Numbers (Long)
    854th
    Hexdump
    185th
    Hilbert Curve
    128th
    Intersection
    187th
    Inventory Sequence
    442nd
    ISBN
    234th
    Jacobi Symbol
    288th
    Kaprekar Numbers
    373rd
    Kolakoski Constant
    121st
    Kolakoski Sequence
    829th
    Leap Years
    587th
    Levenshtein Distance
    530th
    Leyland Numbers
    456th
    ln 2
    746th
    Look and Say
    281st
    Lucky Numbers
    424th
    Lucky Tickets
    247th
    Mahjong
    78th
    Mandelbrot
    484th
    Maze
    141st
    Medal Tally
    127th
    Minesweeper
    131st
    Morse Decoder
    208th
    Morse Encoder
    212th
    Musical Chords
    109th
    N Queens
    Niven Numbers
    1,319th
    Niven Numbers (Long)
    726th
    Number Spiral
    243rd
    Odious Numbers
    648th
    Odious Numbers (Long)
    1,075th
    Ordinal Numbers
    3rd
    PalindromemordnilaP
    411th
    Pangram Grep
    214th
    Partition Numbers
    199th
    Pascal’s Triangle
    1,230th
    Pernicious Numbers
    861st
    Pernicious Numbers (Long)
    967th
    Poker
    114th
    Polyominoes
    135th
    Prime Numbers
    744th
    Prime Numbers (Long)
    2,139th
    Proximity Grid
    159th
    QR Decoder
    108th
    Quine
    1,789th
    Recamán
    777th
    Repeating Decimals
    159th
    Reverse Polish Notation
    789th
    Reversi
    209th
    Rijndael S-box
    88th
    Rock-paper-scissors-Spock-lizard
    288th
    Roman to Arabic
    944th
    ROT13
    530th
    Rule 110
    597th
    Scrambled Sort
    314th
    Set
    235th
    Seven Segment
    375th
    SI Units
    108th
    Sierpiński Triangle
    848th
    Smith Numbers
    926th
    Spelling Numbers
    245th
    Star Wars GPT
    153rd
    Star Wars Opening Crawl
    425th
    Sudoku
    478th
    Sudoku (Fill-in)
    450th
    Ten-pin Bowling
    149th
    Tic-tac-toe
    220th
    Time Distance
    300th
    Tongue-twisters
    208th
    Topological Sort
    101st
    Tower of Hanoi
    814th
    Transpose Sentence
    544th
    Trinomial Triangle
    237th
    United States
    496th
    Vampire Numbers
    641st
    Van Eck Sequence
    543rd
    Zeckendorf Representation
    506th
    Zodiac Signs
    486th
    γ
    135th
    λ
    84th
    π
    1,194th
    τ
    917th
    φ
    1,134th
    √2
    1,300th
    𝑒
    1,308th