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    UnderKoen (he/him) 🇳🇱

    90,637
    93,436
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    💎66
    🥇97
    🥈82
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    📅

    12 Days of Christmas
    838
    24 Game
    790
    99 Bottles of Beer
    844
    Abundant Numbers
    811
    Abundant Numbers (Long)
    886
    Arabic to Roman
    772
    Arithmetic Numbers
    566
    Arrows
    788
    Ascending Primes
    773
    ASCII Table
    897
    Billiards
    802
    brainfuck
    793
    Card Number Validation
    865
    Catalan Numbers
    839
    Catalan’s Constant
    886
    Christmas Trees
    518
    Collatz
    742
    CSS Colors
    383
    Cubes
    891
    Day of Week
    887
    DFA Simulator
    808
    Diamonds
    514
    Divisors
    901
    Emirp Numbers
    838
    Emirp Numbers (Long)
    746
    Emojify
    483
    Evil Numbers
    894
    Evil Numbers (Long)
    805
    Factorial Factorisation
    889
    Farey Sequence
    887
    Fibonacci
    905
    Fizz Buzz
    947
    Foo Fizz Buzz Bar
    868
    Forsyth–Edwards Notation
    701
    Fractions
    797
    Game of Life
    820
    Gijswijt’s Sequence
    863
    Happy Numbers
    836
    Happy Numbers (Long)
    761
    Hexdump
    858
    Hilbert Curve
    859
    Intersection
    852
    Inventory Sequence
    843
    ISBN
    875
    Jacobi Symbol
    716
    Kaprekar Numbers
    866
    Kolakoski Constant
    891
    Kolakoski Sequence
    700
    Leap Years
    909
    Levenshtein Distance
    726
    Leyland Numbers
    850
    ln 2
    757
    Look and Say
    878
    Lucky Numbers
    733
    Lucky Tickets
    821
    Mahjong
    794
    Mandelbrot
    436
    Maze
    839
    Medal Tally
    850
    Minesweeper
    808
    Morse Decoder
    749
    Morse Encoder
    777
    Musical Chords
    817
    N Queens
    Niven Numbers
    902
    Niven Numbers (Long)
    895
    Number Spiral
    752
    Odious Numbers
    907
    Odious Numbers (Long)
    785
    Ordinal Numbers
    978
    PalindromemordnilaP
    750
    Pangram Grep
    921
    Partition Numbers
    857
    Pascal’s Triangle
    723
    Pernicious Numbers
    915
    Pernicious Numbers (Long)
    633
    Poker
    828
    Polyominoes
    647
    Prime Numbers
    913
    Prime Numbers (Long)
    530
    Proximity Grid
    827
    QR Decoder
    806
    Quine
    915
    Recamán
    770
    Repeating Decimals
    815
    Reverse Polish Notation
    652
    Reversi
    799
    Rijndael S-box
    881
    Rock-paper-scissors-Spock-lizard
    743
    Roman to Arabic
    542
    ROT13
    753
    Rule 110
    582
    Scrambled Sort
    782
    Set
    775
    Seven Segment
    721
    SI Units
    788
    Sierpiński Triangle
    582
    Smith Numbers
    543
    Spelling Numbers
    831
    Star Wars GPT
    801
    Star Wars Opening Crawl
    263
    Sudoku
    280
    Sudoku (Fill-in)
    102
    Ten-pin Bowling
    822
    Tic-tac-toe
    826
    Time Distance
    764
    Tongue-twisters
    745
    Topological Sort
    804
    Tower of Hanoi
    413
    Transpose Sentence
    714
    Trinomial Triangle
    851
    United States
    623
    Vampire Numbers
    884
    Van Eck Sequence
    762
    Zeckendorf Representation
    682
    Zodiac Signs
    551
    γ
    892
    λ
    916
    π
    804
    τ
    780
    φ
    658
    √2
    794
    𝑒
    624