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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?

    Recent Solutions

    Hole Golfer Bytes Time Submitted
    Lucky Tickets Andrey2001 1,372
    Arabic to Roman mishak-sys 218
    φ aksyristos 55
    Gray Code Decoder sean-niemann 75
    Divisors Sandw1ch123 63
    Leyland Numbers Sandw1ch123 87
    Collatz Sandw1ch123 74
    Pangram Grep vishwathg 87
    brainfuck codingisgreatbutiamnot 267
    12 Days of Christmas Achouak-Daamache 449
    12 Days of Christmas OutWrest 473
    QR Decoder firegene 243
    Card Number Validation ComradeSquirrel 264
    Transpose Sentence Flekay 92
    Sierpiński Triangle LostSyntax21 128
    Musical Chords madex 298
    Morse Decoder madex 206
    Mahjong madex 449
    Repeating Decimals madex 191
    Ascending Primes Googolplexo 146
    Trinomial Triangle Googolplexo 76
    Ordinal Numbers Googolplexo 96
    Christmas Trees Googolplexo 82
    Prime Numbers Googolplexo 61
    Foo Fizz Buzz Bar Googolplexo 104
    Abundant Numbers (Long) mishak-sys 69
    Happy Numbers aksyristos 🥇 62
    Prime Numbers aksyristos 41
    Gray Code Encoder AstroOrbis 66
    Evil Numbers Googolplexo 44
    Inventory Sequence Googolplexo 60
    Emirp Numbers Googolplexo 108
    Abundant Numbers Googolplexo 66
    Emirp Numbers (Long) professor-l 159
    Recamán Googolplexo 71
    Prime Numbers professor-l 64
    99 Bottles of Beer professor-l 283
    Gray Code Decoder DialFrost 75
    Divisors professor-l 🥇 57
    Foo Fizz Buzz Bar professor-l 🥇 83
    Polyominoes plcc0 240
    Pernicious Numbers professor-l 61
    Tower of Hanoi professor-l 94
    Recamán Matter1024 73
    Abundant Numbers professor-l 87
    Recamán denkyuu1 91
    Reverse Polish Notation denkyuu1 144
    Gray Code Decoder LostSyntax21 77
    Gray Code Encoder LostSyntax21 62
    Medal Tally blaztoma 133
    SI Units aksyristos 457
    Pangram Grep Matter1024 77
    Niven Numbers Matter1024 48
    Pernicious Numbers madex 49
    Reversi plcc0 139
    12 Days of Christmas hellopir2 💎 190
    π MostParsingVex 124
    Abundant Numbers ComradeSquirrel 82
    Abundant Numbers (Long) ComradeSquirrel 83
    Levenshtein Distance Matter1024 195
    Leap Years Matter1024 57
    Kolakoski Sequence Matter1024 67
    Rule 110 GolfingSuccess 79
    Gray Code Decoder stefangimmillaro 77
    Billiards StefanHabel 349
    Zodiac Signs StefanHabel 161
    √2 ComradeSquirrel 69
    Cubes professor-l 257
    Divisors ComradeSquirrel 62
    Gray Code Encoder solisolu 62
    Zeckendorf Representation khvdm 🥇 112
    Rock-paper-scissors-Spock-lizard professor-l 283
    Pernicious Numbers aksyristos 49
    Day of Week aksyristos 🥇 85
    Pascal’s Triangle aksyristos 🥇 54
    ROT13 aksyristos 🥇 68
    Quine aksyristos 🥇 31
    Odious Numbers (Long) aksyristos 🥇 41
    Multitap Input aksyristos 122
    Zodiac Signs aksyristos 152