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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 Chars Time Submitted
    Gray Code Encoder MeWhenI 83
    Gray Code Decoder MeWhenI 49
    Gray Code Encoder GolfingSuccess 83
    Calendar MeWhenI 🦄 422
    Gray Code Encoder albanian-laundromat 87
    Tower of Hanoi kmathis22 152
    Leap Years albanian-laundromat 53
    Billiards albanian-laundromat 201
    Multitap Input albanian-laundromat 💎 117
    Factorial Factorisation albanian-laundromat 146
    Christmas Trees albanian-laundromat 71
    Fibonacci albanian-laundromat 35
    Pascal’s Triangle albanian-laundromat 103
    Niven Numbers (Long) albanian-laundromat 73
    Abundant Numbers (Long) albanian-laundromat 🥇 62
    Abundant Numbers albanian-laundromat 🥇 61
    Star Wars GPT albanian-laundromat 🥉 170
    Trinomial Triangle albanian-laundromat 137
    Look and Say gigaprofisi 1,284
    Pernicious Numbers (Long) GolfingSuccess 🥇 64
    Pernicious Numbers GolfingSuccess 🥇 54
    Transpose Sentence albanian-laundromat 85
    Gray Code Decoder albanian-laundromat 49
    Smith Numbers MeWhenI 🥈 141
    Topological Sort albanian-laundromat 🥈 121
    Minesweeper albanian-laundromat 🥈 129
    Reversi MeWhenI 💎 138
    N Queens albanian-laundromat 💎 149
    Reversi albanian-laundromat 🥈 148
    Musical Chords albanian-laundromat 💎 276
    Quine GolfingSuccess 63
    γ albanian-laundromat 🥈 260
    λ albanian-laundromat 🥈 260
    Divisors albanian-laundromat 67
    Pangram Grep albanian-laundromat 74
    Happy Numbers albanian-laundromat 🥇 58
    Prime Numbers albanian-laundromat 58
    Card Number Validation albanian-laundromat 108
    Alphabetic Numbers HumanoidCPU 3,900
    Alphabetic Numbers MeWhenI 285
    Maze MeWhenI 💎 152
    Maze albanian-laundromat 🥈 154
    Continued Fractions albanian-laundromat 🥈 157
    Continued Fractions MeWhenI 💎 150
    Tower of Hanoi plcc0 97
    ROT13 GolfingSuccess 💎 93
    Collatz albanian-laundromat 69
    Day of Week MeWhenI 💎 196
    Day of Week GolfingSuccess 🥈 201
    Mahjong MeWhenI 🦄 278
    Fibonacci plcc0 35
    Zeckendorf Representation albanian-laundromat 105
    Farey Sequence GolfingSuccess 💎 76
    ln 2 JOrE20 1,008
    Foo Fizz Buzz Bar albanian-laundromat 109
    Fizz Buzz albanian-laundromat 68
    Fibonacci Steffan153 35
    Tutorial kurkale6ka 79
    Multitap Input duckyluuk 🥈 125
    Fibonacci bpharaldsson 82
    Tower of Hanoi jameswmccarty 3,584
    Fibonacci Stockoh 319
    Tutorial FortuiteMan 129
    π JOrE20 1,008
    Multitap Input dokutan 🥉 905
    Arabic to Roman bpharaldsson 240
    Fibonacci Just4FunCoder 42
    π Andrey2001 1,008
    Fizz Buzz vhoulbreque 1,106
    Fibonacci FlyingPenguin223 35
    Niven Numbers pardouin 61
    Tutorial Mefred 129
    Gray Code Decoder GolfingSuccess 49
    Fibonacci Emutis 141
    Prime Numbers (Long) Florian-Mt 176
    Prime Numbers Florian-Mt 126
    Tower of Hanoi Jacob385 3,584
    τ JOrE20 1,008
    √2 JOrE20 1,008
    φ JOrE20 1,008