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 78th stefangimmillaro 871 53 2,741ms 8 days ago 78th emgordon154 871 53 2,796ms 4 days ago 83rd KasperKivimaeki 🇫🇮 871 72 4ms 16 days ago 83rd Steffan153 🇫🇮 871 72 3ms 15 days ago 85th lukegustafson 🇺🇸 870 74 194ms 9 Mar 2026 86th Steffan153 🇫🇮 868 37 315ms 9 days ago 87th sean-niemann 🇺🇸 868 63 7ms 9 May 2025 87th rucin93 🇵🇱 868 63 7ms 10 May 2025 87th edsrzf 🇳🇿 868 63 6ms 10 May 2025 87th targrik 868 63 7ms 8 Oct 2025 87th GolfingSuccess 🇬🇷 868 63 7ms 12 Jan 2026 87th Steffan153 🇫🇮 868 63 7ms 11 days ago 93rd Natanaelel 🇸🇪 867 29 35ms 11 May 2025 93rd ovs-code 🇩🇪 867 29 39ms 9 Oct 2025 95th pardouin 🇫🇷 866 45 1,189ms 15 Feb 2026 95th stefangimmillaro 866 45 1,255ms 16 days ago 95th Steffan153 🇫🇮 866 45 1,228ms 9 days ago 98th error256 865 49 312ms 14 Jan 2026 98th antimon2 🇯🇵 865 49 301ms 14 days ago 100th canissimia 🇦🇶 864 45 31ms 3 days ago 101st kumavale 863 96 149ms 15 days ago 102nd edsrzf 🇳🇿 861 69 394ms 16 days ago 102nd Steffan153 🇫🇮 861 69 393ms 9 days ago 104th GolfingSuccess 🇬🇷 859 56 8ms 14 Jan 2026 104th kg583 🇺🇸 859 56 8ms 14 Jan 2026 104th edsrzf 🇳🇿 859 56 9ms 16 days ago 104th Steffan153 🇫🇮 859 56 9ms 9 days ago 108th Steffan153 🇫🇮 858 38 260ms 9 days ago 109th kg583 🇺🇸 858 75 46ms 1 Dec 2024 109th hallvabo 🇳🇴 858 75 126ms 30 Dec 2024 109th Natanaelel 🇸🇪 858 75 20ms 11 May 2025 109th commandz0 🇺🇸 858 75 1,254ms 27 Aug 2025 109th GolfingSuccess 🇬🇷 858 75 18ms 11 Jan 2026 109th madex 🇩🇪 858 75 26ms 22 days ago 109th CaedenHarper 🇨🇦 858 75 158ms 19 days ago 109th fuzzylojik-golf 🇺🇸 858 75 124ms 17 days ago 109th edsrzf 🇳🇿 858 75 18ms 16 days ago 109th plcc0 858 75 23ms 16 days ago 109th zgialor-lab 858 75 28ms 15 days ago 109th ndren 858 75 21ms 14 days ago 109th CornerMercury 🇬🇧 858 75 19ms 14 days ago 109th DialFrost 🇸🇬 858 75 28ms 12 days ago 109th sean-niemann 🇺🇸 858 75 181ms 11 days ago 109th stefangimmillaro 858 75 26ms 6 days ago 109th FortuiteMan 🇫🇷 858 75 23ms 44 hours ago 126th GolfingSuccess 🇬🇷 857 59 193ms 12 Jan 2026 126th rucin93 🇵🇱 857 59 157ms 9 Mar 2026 126th Steffan153 🇫🇮 857 59 157ms 11 days ago 126th lukegustafson 🇺🇸 857 59 155ms 5 days ago 130th Steffan153 🇫🇮 857 78 454ms 11 days ago 130th sean-niemann 🇺🇸 857 78 413ms 11 days ago 132nd Steffan153 🇫🇮 856 60 108ms 12 days ago 133rd error256 856 70 18ms 13 Mar 2026 134th error256 856 114 551ms 29 Jan 2026 134th edsrzf 🇳🇿 856 114 558ms 15 days ago 136th albanian-laundromat 🇺🇸 854 54 2,287ms 18 Feb 2026 137th CornerMercury 🇬🇧 854 63 457ms 14 days ago 138th error256 854 64 4,375ms 15 Jan 2026 139th GolfingSuccess 🇬🇷 853 66 10ms 12 Jan 2026 139th edsrzf 🇳🇿 853 66 10ms 16 days ago 139th Steffan153 🇫🇮 853 66 10ms 15 days ago 142nd stefangimmillaro 852 78 129ms 10 days ago 142nd Steffan153 🇫🇮 852 78 129ms 9 days ago 144th Steffan153 🇫🇮 851 69 7ms 9 days ago 145th Steffan153 🇫🇮 851 70 132ms 9 days ago 145th edsrzf 🇳🇿 851 70 3,044ms 9 days ago 147th GolfingSuccess 🇬🇷 849 89 59ms 12 Jan 2026 148th ovs-code 🇩🇪 848 46 11ms 13 days ago 148th emgordon154 848 46 11ms 12 days ago 148th Steffan153 🇫🇮 848 46 11ms 11 days ago 151st ovs-code 🇩🇪 848 50 316ms 23 Feb 2025 151st Steffan153 🇫🇮 848 50 335ms 9 days ago 153rd saito-ta 🇯🇵 847 74 3ms 11 May 2025 153rd error256 847 74 3ms 12 Jan 2026 155th AlephSquirrel 847 76 38ms 3 Dec 2025 155th MeWhenI 🇻🇦 847 76 605ms 25 days ago 155th duckyluuk 🇳🇱 847 76 120ms 15 days ago 155th emgordon154 847 76 310ms 7 days ago 159th error256 846 98 155ms 16 Jan 2026 159th edsrzf 🇳🇿 846 98 157ms 15 days ago First Prev 81–160 of 520 Next Last