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    UnderKoen (he/him) 🇳🇱

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    12 Days of Christmas
    282nd
    24 Game
    113th
    99 Bottles of Beer
    242nd
    Abundant Numbers
    687th
    Abundant Numbers (Long)
    507th
    Arabic to Roman
    428th
    Arithmetic Numbers
    1,374th
    Arrows
    280th
    Ascending Primes
    301st
    ASCII Table
    135th
    Billiards
    124th
    brainfuck
    213th
    Card Number Validation
    120th
    Catalan Numbers
    697th
    Catalan’s Constant
    124th
    Christmas Trees
    1,928th
    Collatz
    1,816th
    CSS Colors
    506th
    Cubes
    54th
    Day of Week
    449th
    DFA Simulator
    168th
    Diamonds
    962nd
    Divisors
    1,050th
    Emirp Numbers
    441st
    Emirp Numbers (Long)
    411th
    Emojify
    545th
    Evil Numbers
    745th
    Evil Numbers (Long)
    1,055th
    Factorial Factorisation
    99th
    Farey Sequence
    262nd
    Fibonacci
    2,437th
    Fizz Buzz
    1,216th
    Foo Fizz Buzz Bar
    631st
    Forsyth–Edwards Notation
    386th
    Fractions
    592nd
    Game of Life
    160th
    Gijswijt’s Sequence
    121st
    Happy Numbers
    451st
    Happy Numbers (Long)
    682nd
    Hexdump
    131st
    Hilbert Curve
    61st
    Intersection
    163rd
    Inventory Sequence
    405th
    ISBN
    224th
    Jacobi Symbol
    270th
    Kaprekar Numbers
    139th
    Kolakoski Constant
    88th
    Kolakoski Sequence
    813th
    Leap Years
    538th
    Levenshtein Distance
    496th
    Leyland Numbers
    336th
    ln 2
    498th
    Look and Say
    255th
    Lucky Numbers
    436th
    Lucky Tickets
    194th
    Mahjong
    85th
    Mandelbrot
    448th
    Maze
    125th
    Medal Tally
    110th
    Minesweeper
    100th
    Morse Decoder
    168th
    Morse Encoder
    188th
    Musical Chords
    92nd
    N Queens
    Niven Numbers
    1,102nd
    Niven Numbers (Long)
    646th
    Number Spiral
    289th
    Odious Numbers
    531st
    Odious Numbers (Long)
    1,053rd
    Ordinal Numbers
    2nd
    PalindromemordnilaP
    322nd
    Pangram Grep
    168th
    Partition Numbers
    190th
    Pascal’s Triangle
    1,184th
    Pernicious Numbers
    797th
    Pernicious Numbers (Long)
    950th
    Poker
    87th
    Polyominoes
    130th
    Prime Numbers
    618th
    Prime Numbers (Long)
    2,117th
    Proximity Grid
    118th
    QR Decoder
    100th
    Quine
    1,691st
    Recamán
    659th
    Repeating Decimals
    153rd
    Reverse Polish Notation
    625th
    Reversi
    159th
    Rijndael S-box
    90th
    Rock-paper-scissors-Spock-lizard
    226th
    Roman to Arabic
    824th
    ROT13
    509th
    Rule 110
    591st
    Scrambled Sort
    226th
    Set
    171st
    Seven Segment
    339th
    SI Units
    98th
    Sierpiński Triangle
    796th
    Smith Numbers
    619th
    Spelling Numbers
    210th
    Star Wars GPT
    111th
    Star Wars Opening Crawl
    400th
    Sudoku
    407th
    Sudoku (Fill-in)
    442nd
    Ten-pin Bowling
    121st
    Tic-tac-toe
    188th
    Time Distance
    196th
    Tongue-twisters
    303rd
    Topological Sort
    89th
    Tower of Hanoi
    721st
    Transpose Sentence
    459th
    Trinomial Triangle
    134th
    United States
    445th
    Vampire Numbers
    109th
    Van Eck Sequence
    537th
    Zeckendorf Representation
    410th
    Zodiac Signs
    411th
    γ
    124th
    λ
    80th
    π
    475th
    τ
    452nd
    φ
    883rd
    √2
    660th
    𝑒
    978th