The Gray Code Decoder and Gray Code Encoder holes will go live in approximately 6 days. Why not try and solve them ahead of time?
Gray Code Encoder in all languages in bytes. Achievements Cheevos Holes Languages Medals Miscellaneous All Holes 12 Days of Christmas 24 Game 99 Bottles of Beer Abundant Numbers Abundant Numbers (Long) Arabic to Roman Arithmetic Numbers Arrows Ascending Primes ASCII Table Billiards brainfuck Calendar Card Number Validation Catalan Numbers Catalan’s Constant Christmas Trees Collatz Continued Fractions CSS Colors Cubes Day of Week DFA Simulator Diamonds Divisors Emirp Numbers Emirp Numbers (Long) Emojify Evil Numbers Evil Numbers (Long) Factorial Factorisation Farey Sequence Fibonacci Fizz Buzz Foo Fizz Buzz Bar Forsyth–Edwards Notation Fractions Game of Life Gijswijt’s Sequence Happy Numbers Happy Numbers (Long) Hexdump Hilbert Curve Intersection Inventory Sequence ISBN Jacobi Symbol Kaprekar Numbers Kolakoski Constant Kolakoski Sequence Leap Years Levenshtein Distance Leyland Numbers ln 2 Look and Say Lucky Numbers Lucky Tickets Mahjong Mandelbrot Maze Medal Tally Minesweeper Morse Decoder Morse Encoder Multitap Input Musical Chords N Queens Niven Numbers Niven Numbers (Long) Number Spiral Odious Numbers Odious Numbers (Long) Ordinal Numbers PalindromemordnilaP Pangram Grep Partition Numbers Pascal’s Triangle Pernicious Numbers Pernicious Numbers (Long) Poker Polyominoes Prime Numbers Prime Numbers (Long) Proximity Grid QR Decoder Quine Recamán Repeating Decimals Reverse Polish Notation Reversi Rijndael S-box Rock-paper-scissors-Spock-lizard Roman to Arabic ROT13 Rule 110 Scrambled Sort Set Seven Segment SI Units Sierpiński Triangle Smith Numbers Spelling Numbers Star Wars GPT Star Wars Opening Crawl Sudoku Sudoku (Fill-in) Ten-pin Bowling Tic-tac-toe Time Distance Tongue-twisters Topological Sort Tower of Hanoi Transpose Sentence Trinomial Triangle United States Vampire Numbers Van Eck Sequence Zeckendorf Representation Zodiac Signs γ λ π τ φ √2 𝑒 Alphabetic Numbers Apéry’s Constant Binary Lambda Calculus Connect Four Crossword CSS Colors (Inverse) CSS Grid Ellipse Perimeters Flags Floyd-Steinberg Dithering Gray Code Decoder Gray Code Encoder Hexagonal Spiral Highly Composite Numbers NFA Simulator Numbrix Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Rectangle Fill Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Taxicab Numbers Turtle Tutorial All Languages ><> ALGOL 68 ArkScript Assembly AWK Bash BASIC Berry brainfuck C C# C++ Civet Clojure COBOL Coconut Common Lisp Crystal D Dart Elixir Erlang F# Factor Forth Fortran Gleam Go GolfScript Groovy Haskell Hexagony J Janet Java JavaScript jq Julia K Kotlin Lua Nim OCaml Pascal Perl PHP PowerShell Prolog Python R Raku Rockstar Ruby Rust Scheme sed SQL Swift Tcl TeX V VimL Wren Zig 05AB1E APL Arturo Befunge BQN CJam CoffeeScript Egel Fennel Harbour Hare Haxe Hush Hy iogii Knight Lily Luau Odin Picat Qore Racket Rebol Rexx Scala Squirrel Stax Uiua Umka Vala Vyxal Bytes Chars Scoring Bytes Chars Language All ><> ALGOL 68 ArkScript Assembly AWK Bash BASIC Berry brainfuck C C# C++ Civet Clojure COBOL Coconut Common Lisp Crystal D Dart Elixir Erlang F# Factor Forth Fortran Gleam Go GolfScript Groovy Haskell Hexagony J Janet Java JavaScript jq Julia K Kotlin Lua Nim OCaml Pascal Perl PHP PowerShell Prolog Python R Raku Rockstar Ruby Rust Scheme sed SQL Swift Tcl TeX V VimL Wren Zig Experimental Language 05AB1E APL Arturo Befunge BQN CJam CoffeeScript Egel Fennel Harbour Hare Haxe Hush Hy iogii Knight Lily Luau Odin Picat Qore Racket Rebol Rexx Scala Squirrel Stax Uiua Umka Vala Vyxal Hole All 12 Days of Christmas 24 Game 99 Bottles of Beer Abundant Numbers Abundant Numbers (Long) Arabic to Roman Arithmetic Numbers Arrows Ascending Primes ASCII Table Billiards brainfuck Calendar Card Number Validation Catalan Numbers Catalan’s Constant Christmas Trees Collatz Continued Fractions CSS Colors Cubes Day of Week DFA Simulator Diamonds Divisors Emirp Numbers Emirp Numbers (Long) Emojify Evil Numbers Evil Numbers (Long) Factorial Factorisation Farey Sequence Fibonacci Fizz Buzz Foo Fizz Buzz Bar Forsyth–Edwards Notation Fractions Game of Life Gijswijt’s Sequence Happy Numbers Happy Numbers (Long) Hexdump Hilbert Curve Intersection Inventory Sequence ISBN Jacobi Symbol Kaprekar Numbers Kolakoski Constant Kolakoski Sequence Leap Years Levenshtein Distance Leyland Numbers ln 2 Look and Say Lucky Numbers Lucky Tickets Mahjong Mandelbrot Maze Medal Tally Minesweeper Morse Decoder Morse Encoder Multitap Input Musical Chords N Queens Niven Numbers Niven Numbers (Long) Number Spiral Odious Numbers Odious Numbers (Long) Ordinal Numbers PalindromemordnilaP Pangram Grep Partition Numbers Pascal’s Triangle Pernicious Numbers Pernicious Numbers (Long) Poker Polyominoes Prime Numbers Prime Numbers (Long) Proximity Grid QR Decoder Quine Recamán Repeating Decimals Reverse Polish Notation Reversi Rijndael S-box Rock-paper-scissors-Spock-lizard Roman to Arabic ROT13 Rule 110 Scrambled Sort Set Seven Segment SI Units Sierpiński Triangle Smith Numbers Spelling Numbers Star Wars GPT Star Wars Opening Crawl Sudoku Sudoku (Fill-in) Ten-pin Bowling Tic-tac-toe Time Distance Tongue-twisters Topological Sort Tower of Hanoi Transpose Sentence Trinomial Triangle United States Vampire Numbers Van Eck Sequence Zeckendorf Representation Zodiac Signs γ λ π τ φ √2 𝑒 Experimental Hole Alphabetic Numbers Apéry’s Constant Binary Lambda Calculus Connect Four Crossword CSS Colors (Inverse) CSS Grid Ellipse Perimeters Flags Floyd-Steinberg Dithering Gray Code Decoder Gray Code Encoder Hexagonal Spiral Highly Composite Numbers NFA Simulator Numbrix Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Rectangle Fill Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Taxicab Numbers Turtle Tutorial # Golfer Points Bytes Time Submitted 321st GolfingSuccess 🇬🇷 0 96 182ms 7 May 2025 321st HumanoidCPU 0 96 160ms 10 hours ago 323rd Shanethegamer 🇺🇸 0 98 7ms 6 May 2025 324th snydej 0 99 43ms 22 Nov 2024 324th albanian-laundromat 0 99 343ms 3 days ago 326th dokutan 0 100 370ms 16 hours ago 327th sean-niemann 🇺🇸 0 102 286ms 8 May 2025 327th Shanethegamer 🇺🇸 0 102 307ms 8 May 2025 327th edsrzf 🇳🇿 0 102 295ms 9 May 2025 327th GolfingSuccess 🇬🇷 0 102 306ms 9 May 2025 327th ovs-code 🇩🇪 0 102 311ms 13 Dec 2025 327th CaedenHarper 🇨🇦 0 102 301ms 3 days ago 327th fuzzylojik-golf 🇺🇸 0 102 292ms 33 hours ago 327th emgordon154 0 102 274ms 4 hours ago 335th lukechampine 0 103 301ms 7 Jun 2025 335th chris124567 0 103 294ms 8 Jun 2025 335th albanian-laundromat 0 103 270ms 16 Dec 2025 335th GolfingSuccess 🇬🇷 0 103 336ms 14 Jan 2026 339th edsrzf 🇳🇿 0 104 17ms 16 hours ago 340th kg583 🇺🇸 0 110 14ms 12 Jan 2026 341st retrohun 0 112 16ms 20 hours ago 342nd prestosilver 🇺🇸 0 115 418ms 19 hours ago 343rd GolfingSuccess 🇬🇷 0 117 34ms 25 Dec 2025 344th GolfingSuccess 🇬🇷 0 118 94ms 4 hours ago 345th emgordon154 0 119 56ms 5 hours ago 346th edsrzf 🇳🇿 0 123 30ms 10 hours ago 347th edsrzf 🇳🇿 0 127 58ms 18 mins ago 348th saito-ta 🇯🇵 0 128 1,990ms 8 May 2025 349th CaedenHarper 🇨🇦 0 129 446ms 3 days ago 350th Natanaelel 🇸🇪 0 130 360ms 2 May 2025 351st Shanethegamer 🇺🇸 0 136 315ms 26 Nov 2024 352nd albanian-laundromat 0 137 27ms 3 days ago 353rd GolfingSuccess 🇬🇷 0 138 336ms 8 May 2025 354th canissimia 🇦🇶 0 143 15ms 4 hours ago 355th emgordon154 0 150 15ms 9 May 2025 355th albanian-laundromat 0 150 28ms 3 days ago 357th GolfingSuccess 🇬🇷 0 152 84ms 4 days ago 358th JOrE20 0 159 69ms 14 Feb 2026 359th RYSF13 🇨🇳 0 168 13ms 25 Jun 2025 360th Shanethegamer 🇺🇸 0 197 1,442ms 1 Feb 2025 361st voytxt 🇨🇿 0 200 1,425ms 6 Feb 2026 361st GolfingSuccess 🇬🇷 0 200 1,407ms 7 hours ago 363rd emgordon154 0 202 1,464ms 5 hours ago 364th albanian-laundromat 0 243 15ms 3 days ago 365th albanian-laundromat 0 256 115ms 45 hours ago 366th JOrE20 0 381 2,653ms 29 Dec 2025 367th CaedenHarper 🇨🇦 0 853 550ms 2 days ago First Prev 321–367 of 367