Ctrl+P again to print, arrows/tab to navigate results, enter to confirm

    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 Chars Time Submitted
    Reverse Polish Notation denkyuu1 64
    Prime Numbers Matter1024 32
    Forsyth–Edwards Notation aksyristos 185
    Set aksyristos 101
    Pernicious Numbers madex 38
    Fibonacci darrenks 26
    Tic-tac-toe denkyuu1 121
    Zodiac Signs denkyuu1 377
    Quine edsrzf 🥇 25
    Time Distance denkyuu1 250
    Lucky Numbers denkyuu1 83
    √2 denkyuu1 111
    Number Spiral Steffan153 💎 57
    Happy Numbers (Long) Steffan153 🥈 49
    Reverse Polish Notation Steffan153 🥈 47
    Roman to Arabic Steffan153 🥇 50
    Foo Fizz Buzz Bar Steffan153 🥇 64
    Collatz Steffan153 💎 46
    Polyominoes Steffan153 💎 78
    ASCII Table denkyuu1 91
    Card Number Validation denkyuu1 88
    Cubes denkyuu1 176
    Gray Code Encoder aksyristos 38
    Gray Code Encoder madex 34
    Gray Code Decoder madex 42
    Arabic to Roman denkyuu1 110
    Gray Code Decoder Lv0Sys 43
    Spelling Numbers denkyuu1 574
    Gray Code Encoder edsrzf 34
    Christmas Trees Just4FunCoder 89
    Abundant Numbers (Long) Just4FunCoder 47
    Morse Encoder Steffan153 🥇 83
    √2 aksyristos 79
    Gray Code Decoder MeWhenI 41
    Musical Chords blaztoma 94
    Gray Code Encoder fuzzylojik-golf 33
    Gray Code Encoder HumanoidCPU 38
    Calendar denkyuu1 180
    Continued Fractions denkyuu1 82
    Gray Code Decoder Andriamanitra 45
    Gray Code Encoder Andriamanitra 33
    Gray Code Encoder anter69 34
    Gray Code Encoder BREMAUCY 35
    Gray Code Encoder Matter1024 34
    Gray Code Decoder Matter1024 46
    Set denkyuu1 85
    Gray Code Decoder emgordon154 44
    λ JayXon 105
    Sphenic Numbers denkyuu1 80
    United States denkyuu1 240
    Gray Code Encoder emgordon154 33
    Diamonds fuzzylojik-golf 77
    Arithmetic Numbers Matter1024 61
    Leap Years Steffan153 🥉 35
    Gray Code Encoder CaedenHarper 33
    Lucky Tickets fuzzylojik-golf 70
    Gijswijt’s Sequence aksyristos 127
    Odd Polyomino Tiling madex 669
    Christmas Trees denkyuu1 58
    Game of Life sean-niemann 68
    Day of Week Natanaelel 🥇 40
    Kaprekar Numbers GrayJoKing 68
    Niven Numbers (Long) blaztoma 🥇 38
    Polyominoes madex 235
    Billiards pardouin 💎 68
    Time Distance Steffan153 💎 101
    Time Distance Natanaelel 208
    Arithmetic Numbers Steffan153 💎 47
    Arithmetic Numbers pardouin 🥈 48
    Abundant Numbers pardouin 🥇 32
    24 Game pardouin 💎 84
    Farey Sequence Steffan153 🥇 44
    Maze Steffan153 🥇 66
    Star Wars GPT Steffan153 💎 60
    Set Steffan153 💎 52
    Morse Decoder Steffan153 💎 67
    Seven Segment Steffan153 🥈 62
    Continued Fractions MeWhenI 🥉 61
    N Queens anter69 81
    Zeckendorf Representation pardouin 🥇 56