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    The Gray Code Decoder and Gray Code Encoder holes will go live in approximately . Why not try and solve them ahead of time?

    Yewzir (he/him) 🇧🇪

    87,506
    88,444
    💎14
    🥇337
    🥈73
    🥉143

    Aan allen die gekomen zijn, proficiat! Aan allen die niét gekomen zijn, óók proficiat!

    118 / 126 Holes

    🔣

    63 / 64 Langs

    🏆

    91 / 109 Cheevos

    📅

    18 Holes Authored

    12 Days of Christmas
    💎 6th 42nd79th22nd 8th 34th 9th 43rd 7th34th200th 379th 4th 8th 10th3rd
    24 Game
    3rd
    99 Bottles of Beer
    4th 50th44th20th 6th 33rd 33rd 9th13th105th 420th 4th 6th2nd
    Abundant Numbers
    2nd 13th14th14th8th 44th37th22nd 5th6th27th17th25th13th7th13th 13th12th 18th20th 10th 18th 9th59th 43rd 9th163rd 7th89th 8th10th8th15th5th
    Abundant Numbers (Long)
    1st 12th12th16th7th 36th28th21st 1st 32nd 20th13th6th 12th 12th19th 11th 12th 5th44th 32nd 139th 7th55th 5th5th11th4th
    Arabic to Roman
    6th 10th12th5th 16th 28th49th 1st 5th 8th 85th 11th 105th 3rd 8th6th 2nd
    Arithmetic Numbers
    1st 11th 7th5th 22nd16th17th 11th 19th 7th7th8th11th 9th 9th5th 10th 14th24th 21st 19th21st9th 11th 15th 25th17th 5th34th7th 9th 6th 9th4th
    Arrows
    7th 17th 10th 26th 7th 15th 21st88th 97th 4th 19th 13th4th
    Ascending Primes
    4th 7th 34th21st22nd 7th4th21st 9th9th 1st 11th 42nd 2nd 11th4th 67th 10th3rd35th 5th 5th3rd5th4th
    ASCII Table
    4th 12th 11th 79th28th25th 8th 18th 8th 18th 8th 10th16th91st 43rd 4th 4th 3rd
    brainfuck
    59th 22nd 19th 5th 4th
    Calendar
    6th
    Card Number Validation
    6th
    Catalan Numbers
    8th 18th 16th4th38th16th19th14th14th 15th 10th 13th 17th 21st42nd 11th 21st 19th 136th 5th45th 12th 5th 8th
    Catalan’s Constant
    10th7th9th3rd5th32nd12th20th10th 5th 29th9th10th11th9th5th 7th8th3rd 8th8th 12th 5th15th42nd 1st 10th6th6th3rd12th15th13th8th146th14th13th2nd24th13th 7th6th7th9th6th6th4th7th4th
    Christmas Trees
    3rd 7th 6th 26th34th17th 7th 28th 6th3rd 16th 7th 11th8th90th 17th 34th 130th 2nd 16th 12th 12th5th
    Collatz
    9th 15th12th 56th3rd19th 38th 11th12th 12th 20th 11th 3rd93rd 30th20th 147th 4th 26th 4th5th18th4th
    Continued Fractions
    18th 84th
    CSS Colors
    5th 12th 12th 5th 26th 10th 9th 30th 6th 1st 43rd 92nd 4th 5th 2nd
    Cubes
    4th 25th 8th 18th 21st 2nd 2nd
    Day of Week
    4th6th 1st10th10th7th 24th 14th10th14th1st 5th1st 1st 1st102nd 9th 16th 25th65th 1st17th 4th26th 8th 9th 3rd
    DFA Simulator
    116th
    Diamonds
    4th 7th 35th 22nd 6th 27th 30th 8th 18th 9th23rd87th 96th 4th73rd 4th
    Divisors
    1st 14th34th14th7th 52nd26th33rd 18th 33rd 4th14th17th 24th11th 9th 12th 11th32nd 29th 10th63rd 19th 54th16th 1st 2nd 1st 33rd10th 3rd 20th4th
    Emirp Numbers
    12th 10th 7th7th 24th18th4th 8th4th18th10th14th12th8th7th 13th 16th 10th 25th 11th45th 20th26th 31st 10th47th 2nd60th39th 5th7th 6th4th
    Emirp Numbers (Long)
    5th 5th 8th5th 25th14th17th 14th 28th 8th6th 10th 9th 46th 23rd 14th 52nd 5th 17th 4th 7th5th
    Emojify
    6th 20th 13th 29th 11th 140th 6th 7th4th
    Evil Numbers
    12th 9th13th9th10th 25th10th16th17th10th4th5th35th13th9th1st1st 10th1st 21st11th35th11th 13th39th1st18th15th 15th50th27th17th15th12th23rd 20th26th14th1st17th 4th35th43rd41st 12th10th6th8th7th13th5th
    Evil Numbers (Long)
    9th9th4th6th 31st9th17th15th10th 1st 12th7th1st 8th14th 14th7th32nd10th 28th 9th13th 5th45th21st16th7th 18th 15th16th16th1st13th 5th24th19th15th 7th1st 6th3rd6th5th
    Factorial Factorisation
    12th8th8th8th10th37th24th21st 7th 31st 12th11th9th6th 12th4th 15th8th 12th 8th26th 12th 10th11th 7th8th15th14th6th185th 9th8th41st18th 14th6th8th5th 7th4th7th6th
    Farey Sequence
    10th 6th10th 22nd13th17th 24th 11th14th 15th 9th 15th51st 13th 13th13th 29th10th 5th 20th 10th 6th 6th4th
    Fibonacci
    12th10th 3rd38th3rd1st77th14th43rd1st19th24th15th4th35th26th1st1st25th 29th5th 29th1st71st1st 23rd31st26th1st 59th50th7th1st4th18th1st 13th1st31st1st19th20th1st64th65th15th 5th22nd1st 1st15th12th5th
    Fizz Buzz
    1st117th15th1st 31st110th19th 6th31st1st 15th24th4th7th 16th 33rd 1st 4th 19th1st1st 36th12th27th 52nd 9th87th76th 60th 62nd3rd137th80th 51st27th 11th22nd32nd4th
    Foo Fizz Buzz Bar
    1st 11th5th 57th53rd28th 9th 1st 7th11th9th6th 9th 1st 13th18th50th 29th13th6th 40th 1st 21st3rd23rd23rd 8th10th 4th 13th2nd
    Forsyth–Edwards Notation
    4th 19th23rd11th 7th 32nd 13th 56th 11th 130th 4th 8th2nd
    Fractions
    5th 7th 56th 26th 16th 31st 11th 10th 22nd 35th 30th 91st 6th 5th 4th
    Game of Life
    40th 23rd 29th
    Gijswijt’s Sequence
    4th3rd 6th 10th10th 8th 23rd 9th7th 8th 8th 7th 76th 5th 8th 7th4th7th2nd
    Happy Numbers
    16th11th10th8th 38th18th6th 1st4th26th8th23rd14th11th7th 1st12th 8th 1st 16th46th 24th37th 14th 10th 22nd 1st67th11th 1st60th28th 11th 9th6th21st11th2nd
    Happy Numbers (Long)
    14th9th7th10th 27th16th8th 13th 28th 21st12th6th9th 6th10th 1st 10th 8th61st 20th 12th 10th 14th 98th10th 6th 9th 3rd 5th4th12th4th
    Hexdump
    3rd 7th 19th27th6th 7th 20th 14th 13th 49th 4th 💎
    Intersection
    9th 43rd 24th 9th 33rd 67th 4th 7th 2nd
    Inventory Sequence
    17th 11th 41st28th33rd 10th 39th 10th10th 26th 187th 6th 9th 9th7th
    ISBN
    8th6th 17th31st11th 7th 18th11th 11th 16th9th 11th 9th46th 17th 11th 17th 41st 5th 6th 4th
    Jacobi Symbol
    7th 25th20th14th 28th 33rd 86th 3rd 4th
    Kaprekar Numbers
    17th 7th 5th
    Kolakoski Constant
    2nd9th6th8th5th5th30th21st16th14th 5th 29th10th10th10th9th5th 6th8th4th 11th11th 14th 6th19th39th 15th 12th7th6th4th14th16th14th6th140th12th14th2nd34th13th 7th8th7th8th8th6th4th8th4th
    Kolakoski Sequence
    11th 5th9th 27th19th16th 6th 10th 8th8th 1st 9th 7th32nd 12th 15th15th 20th 3rd 6th 12th3rd
    Leap Years
    19th37th9th12th 75th48th36th 9th10th32nd 24th13th16th12th 17th14th 19th24th 7th56th 22nd105th 31st19th21st78th19th18th26th23rd26th27th 176th23rd44th6th51st82nd 10th27th6th 16th5th15th9th
    Levenshtein Distance
    8th 13th 9th 35th 1st 44th 11th 16th 17th5th
    Leyland Numbers
    9th 6th 24th11th 14th 4th 7th 17th88th 16th 8th 5th 8th 3rd
    ln 2
    7th6th8th4th6th19th16th20th15th 8th 33rd10th13th13th11th7th 10th10th4th 9th14th 16th 4th24th48th 33rd 10th7th4th4th31st11th16th9th100th15th11th4th28th11th 4th6th7th7th5th8th4th7th6th
    Look and Say
    5th 7th 15th13th 12th 29th 5th 9th 12th 15th 172nd 5th 17th 6th2nd
    Lucky Numbers
    8th 18th 34th 35th 49th 5th
    Lucky Tickets
    167th 4th 4th
    Mahjong
    11th7th 11th 23rd 5th
    Maze
    22nd
    Medal Tally
    9th 7th 33rd 119th 4th 4th 💎
    Minesweeper
    6th 3rd
    Morse Decoder
    4th 11th 30th 212th 3rd 4th
    Morse Encoder
    7th 26th 219th 3rd 4th
    Musical Chords
    29th10th 11th 12th 3rd
    N Queens
    25th 122nd 2nd
    Niven Numbers
    7th 13th12th1st1st 43rd1st29th13th1st4th1st19th1st1st1st1st 21st1st16th19th1st 13th1st 24th1st4th1st 1st31st21st33rd1st1st16th16th7th8th1st47th14th15th4th31st1st 10th1st1st7th1st8th1st5th
    Niven Numbers (Long)
    13th8th1st7th 24th33rd15th16th11th 28th11th25th13th3rd11th 13th15th12th11th1st 12th31st 17th15th9th79th 1st28th16th19th8th7th12th23rd29th17th4th47th14th12th4th63rd10th 8th8th12th 8th4th4th5th
    Number Spiral
    3rd 5th 7th 23rd13th13th 5th 23rd4th 7th6th 11th 7th 8th10th28th 77th 2nd 5th 5th 2nd 2nd
    Odious Numbers
    10th 12th14th8th11th 25th10th12th16th1st4th4th36th13th10th1st1st 8th1st 18th8th31st11th 12th38th1st12th11th 15th48th25th17th15th12th26th 18th24th15th1st18th 4th31st41st23rd 13th8th7th9th8th12th5th
    Odious Numbers (Long)
    11th8th4th6th 21st9th11th14th1st 5th 13th7th1st 7th14th 14th8th30th11th 26th 9th11th 5th44th22nd4th7th 19th 11th17th16th1st16th 5th21st17th14th 7th4th 6th3rd7th5th
    Ordinal Numbers
    7th 59th27th21st 10th 2nd 71st 5th 5th 6th 5th
    PalindromemordnilaP
    30th 192nd
    Pangram Grep
    5th 6th 26th34th14th 9th 18th13th 24th11th50th 13th 11th 11th 11th17th66th 8th20th 13th 33rd 62nd 6th93rd 43rd21st 5th10th13th3rd
    Partition Numbers
    27th 119th
    Pascal’s Triangle
    10th 12th 52nd18th25th 11th 40th 9th 19th 6th 11th 31st 36th 232nd 4th 8th 14th4th
    Pernicious Numbers
    4th18th1st8th1st1st22nd1st1st1st1st6th4th1st8th1st1st1st1st 18th14th9th15th1st26th1st28th9th27th6th1st1st 11th31st12th23rd1st1st1st1st1st1st1st1st13th1st5th1st1st 21st13th1st1st6th1st6th1st5th
    Pernicious Numbers (Long)
    9th 7th10th 28th16th24th 5th 30th11th17th12th6th 14th 11th13th15th11th 25th10th22nd33rd 12th27th 9th 12th9th12th15th 71st 10th5th42nd 14th 4th 7th
    Poker
    3rd 132nd 2nd
    Prime Numbers
    1st 11th32nd9th1st 59th26th29th17th1st4th1st16th24th11th9th1st 3rd1st 1st21st1st1st11th1st1st17th44th 14th1st 27th1st7th 17th30th15th1st1st9th61st1st1st20th 25th5th7th1st9th20th3rd
    Prime Numbers (Long)
    1st 11th8th8th1st 42nd13th29th 12th 1st 16th6th 25th 1st 13th4th13th 1st 9th1st 23rd1st 12th 23rd14th 1st20th30th1st63rd50th 19th 1st4th20th4th
    Proximity Grid
    14th
    QR Decoder
    4th
    Quine
    1st 7th1st 17th25th10th68th34th 32nd1st 1st4th1st 2nd 6th1st 20th33rd15th5th26th35th32nd1st1st 11th1st 1st1st1st5th 76th 77th5th1st21st 1st47th 13th 2nd
    Recamán
    3rd 9th 58th34th33rd 40th 22nd100th 275th 5th 8th 12th4th
    Repeating Decimals
    30th
    Reverse Polish Notation
    5th 22nd 53rd 2nd
    Reversi
    4th 11th 6th 4th 73rd 3rd 3rd2nd4th2nd
    Rijndael S-box
    4th 28th20th 5th 4th 7th
    Rock-paper-scissors-Spock-lizard
    2nd 18th8th 31st 12th 8th 294th 3rd💎
    Roman to Arabic
    3rd 8th 16th18th11th 14th 10th11th 1st 5th 6th 9th29th 34th 7th 9th4th
    ROT13
    44th 20th 20th 13th 65th 4th
    Rule 110
    22nd 7th 288th 4th 8th
    Scrambled Sort
    11th 13th 107th11th
    Set
    120th
    Seven Segment
    5th 47th30th19th 6th 25th 12th 133rd 5th 7th3rd
    SI Units
    23rd 82nd 3rd
    Sierpiński Triangle
    7th 8th7th 45th24th24th 5th 26th 10th6th 14th 7th 13th 76th 11th 7th 8th4th
    Smith Numbers
    28th 9th 4th 6th
    Spelling Numbers
    12th 13th 52nd 8th 2nd
    Star Wars Opening Crawl
    6th 23rd 88th 💎
    Sudoku
    27th 120th 2nd
    Sudoku (Fill-in)
    25th 110th
    Ten-pin Bowling
    8th 8th
    Tic-tac-toe
    29th 156th
    Time Distance
    3rd 22nd13th 24th 73rd 3rd 2nd
    Tongue-twisters
    5th 7th 19th28th13th 10th 30th 9th8th 10th 13th 10th 20th106th 143rd 3rd 8th 9th4th
    Tower of Hanoi
    13th 27th17th 19th 22nd 16th 28th13th 79th 7th
    Transpose Sentence
    37th 177th
    Trinomial Triangle
    107th
    United States
    19th 31st 244th 4th
    Vampire Numbers
    6th 11th 4th31st8th12th 3rd 8th 17th 7th218th 3rd40th 5th 5th2nd
    Van Eck Sequence
    12th 7th 33rd19th22nd 40th 10th 9th 310th 4th 5th 13th3rd
    Zodiac Signs
    32nd 142nd
    γ
    3rd10th3rd7th5th5th34th26th16th12th 4th 26th8th11th9th7th5th 5th5th4th 7th7th 6th 7th12th21st 1st 7th8th7th4th7th13th10th5th85th14th10th3rd18th11th 5th5th5th6th7th5th5th6th3rd
    λ
    3rd12th3rd12th6th5th53rd28th21st12th 7th 31st13th10th10th8th5th 8th6th4th 11th12th 16th 9th18th67th 21st 16th12th7th6th12th20th14th7th124th15th16th3rd33rd17th 11th12th8th7th6th7th6th9th5th
    π
    2nd15th5th11th8th9th75th62nd48th17th 8th 35th20th13th17th11th7th 11th8th5th 24th21st 33rd 5th46th154th7th1st 20th12th6th5th34th26th33rd9th187th19th37th3rd28th21st 9th9th14th9th7th8th6th7th7th
    τ
    12th6th10th6th5th49th29th28th14th 7th 31st18th11th15th10th7th 8th8th5th 17th17th 19th 5th35th93rd 40th 14th9th6th5th33rd19th17th8th152nd15th22nd3rd25th14th 9th9th8th9th6th8th6th7th6th
    φ
    10th7th9th6th7th46th27th14th10th 10th 1st27th10th10th10th7th 10th10th5th6th27th23rd12th30th 5th19th56th 1st 16th8th6th5th31st22nd10th12th1st14th26th4th26th17th 10th9th10th8th6th10th5th8th5th
    √2
    10th6th10th6th6th46th30th29th9th 12th 36th17th11th11th13th7th 12th11th5th 1st18th 31st 5th18th89th 43rd 13th8th6th5th31st17th19th12th155th14th20th4th43rd15th 10th10th9th10th6th12th6th7th6th
    𝑒
    14th12th14th7th9th60th50th34th27th 11th 35th17th14th17th12th9th 10th10th5th 26th17th 33rd 13th7th35th88th 1st 17th12th5th7th32nd25th20th10th108th40th32nd5th39th26th 8th8th12th10th6th10th7th10th9th