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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
    Gray Code Decoder edsrzf 53
    Gray Code Encoder edsrzf 60
    ROT13 JayXon 🥇 60
    Gray Code Encoder emgordon154 60
    ROT13 Steffan153 🥇 60
    DFA Simulator jkelly467 167
    Leap Years Steffan153 🥇 44
    Odd Polyomino Tiling madex 917
    Seven Segment pardouin 🥇 111
    Seven Segment Steffan153 🥇 111
    Gijswijt’s Sequence emgordon154 97
    QR Decoder madex 303
    Card Number Validation edsrzf 🥇 74
    ISBN madex 96
    Continued Fractions madex 159
    Gray Code Decoder madex 59
    Gray Code Encoder madex 61
    Tower of Hanoi kmathis22 101
    United States Chinay-Domitrix 481
    Inventory Sequence Chinay-Domitrix 92
    Prime Numbers tomh1012 73
    Pernicious Numbers fuzzylojik-golf 🥇 42
    Ascending Primes Chinay-Domitrix 155
    Abundant Numbers Steffan153 💎 54
    Prime Numbers (Long) albanian-laundromat 52
    Tower of Hanoi AidanWalter 185
    Zodiac Signs Chinay-Domitrix 242
    Transpose Sentence Chinay-Domitrix 129
    Transpose Sentence edsrzf 91
    Niven Numbers (Long) madex 🥇 54
    Pascal’s Triangle madex 83
    Look and Say madex 🥉 94
    Evil Numbers (Long) madex 50
    Pernicious Numbers (Long) madex 64
    Pernicious Numbers madex 58
    Odious Numbers madex 44
    Evil Numbers madex 43
    Emirp Numbers madex 117
    Catalan Numbers madex 110
    Partition Numbers madex 90
    Arithmetic Numbers madex 71
    Happy Numbers (Long) madex 85
    Van Eck Sequence madex 96
    Tower of Hanoi madex 70
    Foo Fizz Buzz Bar madex 126
    Collatz madex 81
    Happy Numbers madex 84
    Odious Numbers (Long) madex 50
    Divisors madex 63
    Prime Numbers (Long) madex 🥇 50
    Abundant Numbers (Long) Steffan153 🥇 60
    Abundant Numbers (Long) madex 🥇 60
    Fizz Buzz madex 82
    Calendar madex 361
    Abundant Numbers madex 60
    Prime Numbers madex 49
    Lucky Numbers madex 144
    Fibonacci madex 49
    Diamonds h3ra993huskp 151
    Medal Tally Chinay-Domitrix 212
    brainfuck Chinay-Domitrix 291
    Tutorial Chinay-Domitrix 50
    QR Decoder Chinay-Domitrix 271
    Niven Numbers madex 🥇 44
    Leap Years madex 49
    Pangram Grep madex 🥇 62
    Arabic to Roman pardouin 🥇 126
    Emojify Chinay-Domitrix 270
    Scrambled Sort Chinay-Domitrix 129
    Calendar Chinay-Domitrix 🥉 239
    Repeating Decimals Chinay-Domitrix 227
    τ Chinay-Domitrix 246
    Diamonds qpwoeirut 131
    Fractions madex 124
    Lucky Tickets Chinay-Domitrix 157
    Tutorial roelderickx 78
    Catalan’s Constant Chinay-Domitrix 🥈 162
    Zeckendorf Representation Chinay-Domitrix 130
    Tower of Hanoi Chinay-Domitrix 70
    γ Chinay-Domitrix 1,004