Gray Code Decoder 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 Gray Code Decoder Gray Code Encoder 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 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 Gray Code Decoder Gray Code Encoder 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 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 81st error256 865 49 312ms 14 Jan 2026 81st antimon2 🇯🇵 865 49 301ms 5 days ago 83rd kumavale 863 96 149ms 7 days ago 84th Natanaelel 🇸🇪 862 29 35ms 11 May 2025 84th ovs-code 🇩🇪 862 29 40ms 9 Oct 2025 86th pardouin 🇫🇷 862 53 2,617ms 19 Feb 2026 86th edsrzf 🇳🇿 862 53 2,583ms 8 days ago 86th Steffan153 🇫🇮 862 53 2,512ms 3 days ago 89th GolfingSuccess 🇬🇷 861 27 27ms 26 Jan 2026 90th GolfingSuccess 🇬🇷 859 56 9ms 14 Jan 2026 90th kg583 🇺🇸 859 56 9ms 14 Jan 2026 90th edsrzf 🇳🇿 859 56 9ms 8 days ago 90th Steffan153 🇫🇮 859 56 9ms 29 hours ago 94th Steffan153 🇫🇮 857 78 454ms 3 days ago 94th sean-niemann 🇺🇸 857 78 413ms 2 days ago 96th Steffan153 🇫🇮 856 60 107ms 4 days ago 97th edsrzf 🇳🇿 856 69 394ms 7 days ago 97th Steffan153 🇫🇮 856 69 393ms 26 hours ago 99th error256 856 70 18ms 19 days ago 100th error256 856 114 513ms 29 Jan 2026 100th edsrzf 🇳🇿 856 114 489ms 7 days ago 102nd Steffan153 🇫🇮 855 47 6ms 9 hours ago 103rd kg583 🇺🇸 855 75 38ms 1 Dec 2024 103rd hallvabo 🇳🇴 855 75 131ms 30 Dec 2024 103rd Natanaelel 🇸🇪 855 75 19ms 11 May 2025 103rd commandz0 🇺🇸 855 75 1,210ms 27 Aug 2025 103rd GolfingSuccess 🇬🇷 855 75 19ms 11 Jan 2026 103rd madex 🇩🇪 855 75 26ms 14 days ago 103rd CaedenHarper 🇨🇦 855 75 149ms 11 days ago 103rd fuzzylojik-golf 🇺🇸 855 75 123ms 9 days ago 103rd edsrzf 🇳🇿 855 75 17ms 7 days ago 103rd plcc0 855 75 21ms 7 days ago 103rd zgialor-lab 855 75 25ms 7 days ago 103rd ndren 855 75 19ms 6 days ago 103rd CornerMercury 🇬🇧 855 75 19ms 5 days ago 103rd DialFrost 🇸🇬 855 75 25ms 3 days ago 103rd sean-niemann 🇺🇸 855 75 178ms 2 days ago 118th error256 854 64 4,375ms 15 Jan 2026 119th Steffan153 🇫🇮 853 38 260ms 31 hours ago 120th CornerMercury 🇬🇧 853 63 420ms 5 days ago 121st GolfingSuccess 🇬🇷 853 66 10ms 12 Jan 2026 121st edsrzf 🇳🇿 853 66 10ms 8 days ago 121st Steffan153 🇫🇮 853 66 10ms 7 days ago 124th GolfingSuccess 🇬🇷 851 59 224ms 12 Jan 2026 124th rucin93 🇵🇱 851 59 200ms 23 days ago 124th Steffan153 🇫🇮 851 59 163ms 3 days ago 127th Steffan153 🇫🇮 851 69 7ms 24 hours ago 128th ovs-code 🇩🇪 848 46 11ms 5 days ago 128th emgordon154 848 46 11ms 4 days ago 128th Steffan153 🇫🇮 848 46 11ms 3 days ago 131st ovs-code 🇩🇪 848 50 316ms 23 Feb 2025 131st Steffan153 🇫🇮 848 50 347ms 29 hours ago 133rd stefangimmillaro 847 78 129ms 47 hours ago 133rd Steffan153 🇫🇮 847 78 129ms 26 hours ago 135th albanian-laundromat 846 54 2,566ms 18 Feb 2026 136th error256 846 98 155ms 16 Jan 2026 136th edsrzf 🇳🇿 846 98 157ms 7 days ago 138th lyphyser 845 41 53ms 7 days ago 139th GolfingSuccess 🇬🇷 845 49 38ms 12 Jan 2026 139th albanian-laundromat 845 49 33ms 24 days ago 139th MeWhenI 🇻🇦 845 49 33ms 7 days ago 142nd saito-ta 🇯🇵 845 74 3ms 11 May 2025 142nd error256 845 74 3ms 12 Jan 2026 144th edsrzf 🇳🇿 845 83 1,251ms 7 days ago 144th Steffan153 🇫🇮 845 83 1,350ms 26 hours ago 146th GolfingSuccess 🇬🇷 845 85 25ms 14 Jan 2026 146th edsrzf 🇳🇿 845 85 28ms 7 days ago 148th Natanaelel 🇸🇪 844 38 41ms 8 May 2025 148th ovs-code 🇩🇪 844 38 38ms 13 Jan 2026 148th pardouin 🇫🇷 844 38 37ms 19 Feb 2026 151st Steffan153 🇫🇮 844 70 132ms 28 hours ago 151st edsrzf 🇳🇿 844 70 3,044ms 21 hours ago 153rd edsrzf 🇳🇿 844 71 18ms 8 days ago 153rd kg583 🇺🇸 844 71 18ms 8 days ago 153rd Steffan153 🇫🇮 844 71 17ms 3 days ago 153rd GolfingSuccess 🇬🇷 844 71 18ms 25 hours ago 157th AlephSquirrel 844 76 39ms 3 Dec 2025 157th MeWhenI 🇻🇦 844 76 586ms 17 days ago 157th duckyluuk 🇳🇱 844 76 200ms 6 days ago 160th GolfingSuccess 🇬🇷 843 69 447ms 14 Jan 2026 First Prev 81–160 of 481 Next Last