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    duckyluuk (he/him) 🇳🇱

    115,473
    115,953
    💎70
    🥇191
    🥈46
    🥉59

    🪨⭐

    130 / 130 Holes

    🔣

    43 / 64 Langs

    🏆

    78 / 113 Cheevos

    📅

    2 Holes Authored

    3 Referrals

    12 Days of Christmas
    3rd 7th 5th 💎
    24 Game
    16th 37th 2nd
    99 Bottles of Beer
    6th 28th 6th
    Abundant Numbers
    19th 112th 1st
    Abundant Numbers (Long)
    26th 91st 1st
    Alphabetic Numbers
    5th 5th 9th 💎
    Arabic to Roman
    21st 24th 8th 98th 4th
    Arithmetic Numbers
    15th 24th 💎
    Arrows
    16th 43rd 3rd
    Ascending Primes
    10th 25th 2nd
    ASCII Table
    2nd 13th 22nd 💎
    Billiards
    14th 35th
    brainfuck
    9th 13th 28th 4th
    Calendar
    4th 1st
    Card Number Validation
    10th 1st 25th 3rd
    Catalan Numbers
    1st 1st 💎
    Catalan’s Constant
    18th 1st 66th 💎
    Christmas Trees
    12th 7th 23rd 46th 6th
    Collatz
    14th 77th 10th 8th 7th
    Continued Fractions
    7th 1st 3rd
    CSS Colors
    5th 1st 30th 3rd
    Cubes
    16th 44th
    Day of Week
    1st 1st 1st1st 3rd
    DFA Simulator
    7th 17th 3rd 8th 💎
    Diamonds
    6th 15th 33rd 💎
    Divisors
    1st 171st 1st 1st 1st
    Emirp Numbers
    22nd 8th 49th 3rd
    Emirp Numbers (Long)
    19th 59th
    Emojify
    11th 27th 2nd
    Evil Numbers
    5th 64th 16th 1st 4th 15th
    Evil Numbers (Long)
    21st 44th 13th 43rd 4th
    Factorial Factorisation
    8th 18th 21st 24th 5th
    Farey Sequence
    17th 19th 5th 30th 2nd
    Fibonacci
    13th9th20th9th44th20th5th 24th50th50th 32nd 1st 25th 29th1st 7th1st 32nd13th57th1st 35th7th8th 36th46th
    Fizz Buzz
    2nd 1st 31st1st 10th 1st 1st 4th1st
    Foo Fizz Buzz Bar
    1st 33rd 1st 6th
    Forsyth–Edwards Notation
    11th 5th 25th 3rd
    Fractions
    1st 1st 1st 2nd1st
    Game of Life
    7th 18th 11th 5th 13th 2nd
    Gijswijt’s Sequence
    2nd 10th 5th 17th 2nd
    Gray Code Decoder
    11th 39th 4th
    Gray Code Encoder
    17th 1st 💎
    Happy Numbers
    9th 9th 1st 7th
    Happy Numbers (Long)
    17th 52nd 3rd
    Hexdump
    27th 84th 3rd
    Hilbert Curve
    💎 2nd 💎
    Intersection
    18th 23rd 36th
    Inventory Sequence
    19th 11th 53rd 3rd
    ISBN
    9th 30th 23rd 3rd
    Jacobi Symbol
    21st 71st
    Kaprekar Numbers
    20th 36th 66th 💎
    Kolakoski Constant
    16th 5th 51st 💎
    Kolakoski Sequence
    10th 8th 40th 6th 21st 3rd
    Leap Years
    30th 190th 124th 5th
    Levenshtein Distance
    23rd 42nd 3rd
    Leyland Numbers
    24th 8th 4th
    ln 2
    1st 1st 2nd
    Look and Say
    3rd 13th 15th 3rd12th 25th 2nd
    Lucky Numbers
    22nd 35th 3rd
    Lucky Tickets
    18th 1st 1st 2nd
    Mahjong
    20th 39th
    Mandelbrot
    6th 9th 💎
    Maze
    18th 54th
    Medal Tally
    6th 12th 5th 1st 3rd
    Minesweeper
    8th 15th 💎
    Morse Decoder
    9th 14th
    Morse Encoder
    8th 22nd 1st
    Multitap Input
    12th 13th 25th 💎
    Musical Chords
    16th 45th
    N Queens
    5th 14th 19th 2nd
    Niven Numbers
    31st 1st 51st 4th
    Niven Numbers (Long)
    20th 17th 52nd 3rd
    Number Spiral
    9th 9th 3rd
    Odious Numbers
    4th 54th 16th 1st 4th
    Odious Numbers (Long)
    5th 39th 12th 1st 4th
    Ordinal Numbers
    18th 7th 💎
    PalindromemordnilaP
    11th 23rd 5th 30th 4th
    Pangram Grep
    7th 22nd 13th41st16th 8th 43rd18th 65th 4th 15th10th
    Partition Numbers
    18th 18th 43rd 💎
    Pascal’s Triangle
    33rd 42nd 49th 135th 7th
    Pernicious Numbers
    1st 1st 4th
    Pernicious Numbers (Long)
    13th 1st 4th
    Poker
    9th 20th
    Polyominoes
    12th 27th 💎
    Prime Numbers
    34th 87th 92nd 22nd 61st 1st
    Prime Numbers (Long)
    22nd 71st 45th 22nd 1st 5th
    Proximity Grid
    15th 33rd 💎
    QR Decoder
    13th 35th
    Quine
    1st 1st 25th 35th1st 185th 30th1st 1st 1st
    Recamán
    13th 35th 30th 4th
    Repeating Decimals
    24th 60th 2nd
    Reverse Polish Notation
    24th 56th 74th 2nd
    Reversi
    14th 29th 💎
    Rijndael S-box
    16th 42nd 3rd
    Rock-paper-scissors-Spock-lizard
    16th 59th 💎
    Roman to Arabic
    9th 25th 1st 1st
    ROT13
    2nd 8th 1st 4th
    Rule 110
    25th 86th 3rd
    Scrambled Sort
    13th 11th 💎
    Set
    10th 13th 3rd
    Seven Segment
    21st 55th 2nd
    SI Units
    15th 45th
    Sierpiński Triangle
    4th 13th 18th 56th 💎
    Smith Numbers
    16th 42nd 3rd
    Spelling Numbers
    16th86th 58th 💎
    Star Wars GPT
    12th 37th 2nd
    Star Wars Opening Crawl
    15th 33rd
    Sudoku
    12th 32nd
    Sudoku (Fill-in)
    14th 35th
    Taxicab Numbers
    12th 29th 1st
    Ten-pin Bowling
    17th 48th
    Tic-tac-toe
    11th 27th 32nd 💎
    Time Distance
    11th 18th 💎
    Tongue-twisters
    11th 19th 1st
    Topological Sort
    11th 11th 18th
    Tower of Hanoi
    7th 37th 14th 3rd
    Transpose Sentence
    3rd 14th 6th 22nd 💎
    Trinomial Triangle
    22nd 56th 3rd
    United States
    13th 5th 40th 💎
    Vampire Numbers
    12th 20th 💎
    Van Eck Sequence
    9th 25th 1st 2nd
    Zeckendorf Representation
    3rd 21st 1st 6th
    Zodiac Signs
    13th 25th 💎
    γ
    19th 1st3rd 46th 💎
    λ
    32nd 16th 3rd 74th 1st 9th
    π
    16th 5th 8th15th 1st5th 18th 💎
    τ
    4th 7th14th 65th4th 11th 2nd
    φ
    23rd 12th 46th 9th 60th 2nd
    √2
    1st 25th 16th6th 1st 💎
    𝑒
    1st 1st6th 1st42nd 💎