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    UnderKoen (he/him) 🇳🇱

    87,593
    90,349
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    💎61
    🥇92
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    💎 SQL

    118 / 118 Holes

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    1 / 60 Langs

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    67 / 82 Cheevos

    📅

    12 Days of Christmas
    3rd
    24 Game
    2nd
    99 Bottles of Beer
    2nd
    Abundant Numbers
    3rd
    Abundant Numbers (Long)
    💎
    Arabic to Roman
    3rd
    Arithmetic Numbers
    3rd
    Arrows
    2nd
    Ascending Primes
    3rd
    ASCII Table
    💎
    Billiards
    💎
    brainfuck
    💎
    Card Number Validation
    💎
    Catalan Numbers
    2nd
    Catalan’s Constant
    💎
    Christmas Trees
    7th
    Collatz
    3rd
    CSS Colors
    2nd
    Cubes
    💎
    Day of Week
    1st
    DFA Simulator
    💎
    Diamonds
    4th
    Divisors
    1st
    Emirp Numbers
    1st
    Emirp Numbers (Long)
    3rd
    Emojify
    4th
    Evil Numbers
    2nd
    Evil Numbers (Long)
    4th
    Factorial Factorisation
    💎
    Farey Sequence
    💎
    Fibonacci
    5th
    Fizz Buzz
    1st
    Foo Fizz Buzz Bar
    4th
    Forsyth–Edwards Notation
    3rd
    Fractions
    2nd
    Game of Life
    2nd
    Gijswijt’s Sequence
    2nd
    Happy Numbers
    1st
    Happy Numbers (Long)
    3rd
    Hexdump
    💎
    Intersection
    1st
    Inventory Sequence
    2nd
    ISBN
    1st
    Jacobi Symbol
    2nd
    Kaprekar Numbers
    2nd
    Kolakoski Constant
    💎
    Kolakoski Sequence
    2nd
    Leap Years
    2nd
    Levenshtein Distance
    2nd
    Leyland Numbers
    3rd
    ln 2
    2nd
    Look and Say
    💎
    Lucky Numbers
    2nd
    Lucky Tickets
    💎
    Mahjong
    💎
    Mandelbrot
    5th
    Maze
    2nd
    Medal Tally
    💎
    Morse Decoder
    2nd
    Morse Encoder
    2nd
    Musical Chords
    💎
    N Queens
    2nd
    Niven Numbers
    2nd
    Niven Numbers (Long)
    1st
    Number Spiral
    2nd
    Odious Numbers
    1st
    Odious Numbers (Long)
    3rd
    Ordinal Numbers
    1st
    PalindromemordnilaP
    2nd
    Pangram Grep
    1st
    Partition Numbers
    💎
    Pascal’s Triangle
    6th
    Pernicious Numbers
    1st
    Pernicious Numbers (Long)
    4th
    Poker
    💎
    Polyominoes
    2nd
    Prime Numbers
    1st
    Prime Numbers (Long)
    9th
    Proximity Grid
    💎
    QR Decoder
    💎
    Quine
    1st
    Recamán
    2nd
    Repeating Decimals
    💎
    Reverse Polish Notation
    3rd
    Reversi
    💎
    Rijndael S-box
    💎
    Rock-paper-scissors-Spock-lizard
    2nd
    Roman to Arabic
    4th
    ROT13
    2nd
    Rule 110
    3rd
    Scrambled Sort
    🦄
    Set
    🦄
    Seven Segment
    4th
    SI Units
    2nd
    Sierpiński Triangle
    4th
    Smith Numbers
    4th
    Spelling Numbers
    💎
    Star Wars GPT
    💎
    Star Wars Opening Crawl
    2nd
    Sudoku
    2nd
    Sudoku (Fill-in)
    2nd
    Ten-pin Bowling
    2nd
    Tic-tac-toe
    💎
    Time Distance
    💎
    Tongue-twisters
    3rd
    Transpose Sentence
    2nd
    United States
    2nd
    Vampire Numbers
    2nd
    Van Eck Sequence
    3rd
    Zeckendorf Representation
    4th
    Zodiac Signs
    3rd
    γ
    💎
    λ
    💎
    π
    2nd
    τ
    2nd
    φ
    2nd
    √2
    2nd
    𝑒
    3rd