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 161st saito-ta 🇯🇵 853 74 3ms 11 May 2025 161st error256 853 74 3ms 12 Jan 2026 163rd Steffan153 🇫🇮 852 68 487ms 20 days ago 163rd edsrzf 🇳🇿 852 68 495ms 19 days ago 163rd emgordon154 852 68 540ms 10 days ago 166th edsrzf 🇳🇿 852 71 17ms 27 days ago 166th kg583 🇺🇸 852 71 18ms 27 days ago 166th Steffan153 🇫🇮 852 71 17ms 22 days ago 166th GolfingSuccess 🇬🇷 852 71 19ms 20 days ago 170th Steffan153 🇫🇮 851 69 7ms 20 days ago 171st edsrzf 🇳🇿 851 83 1,450ms 27 days ago 171st Steffan153 🇫🇮 851 83 1,390ms 20 days ago 173rd GolfingSuccess 🇬🇷 850 85 28ms 14 Jan 2026 173rd edsrzf 🇳🇿 850 85 28ms 27 days ago 175th Steffan153 🇫🇮 849 62 56ms 20 days ago 176th madex 🇩🇪 849 67 9ms 25 days ago 177th GolfingSuccess 🇬🇷 849 69 455ms 14 Jan 2026 177th error256 849 69 446ms 22 Mar 2026 177th Steffan153 🇫🇮 849 69 453ms 21 days ago 177th stefangimmillaro 849 69 437ms 20 days ago 181st AlephSquirrel 849 76 38ms 3 Dec 2025 181st MeWhenI 🇻🇦 849 76 605ms 16 Mar 2026 181st duckyluuk 🇳🇱 849 76 117ms 26 days ago 181st emgordon154 849 76 310ms 18 days ago 185th error256 849 98 166ms 16 Jan 2026 185th edsrzf 🇳🇿 849 98 165ms 26 days ago 187th Natanaelel 🇸🇪 848 38 39ms 8 May 2025 187th ovs-code 🇩🇪 848 38 41ms 13 Jan 2026 187th pardouin 🇫🇷 848 38 42ms 19 Feb 2026 187th stefangimmillaro 848 38 44ms 17 days ago 187th blaztoma 🇱🇹 848 38 82ms 8 days ago 192nd ovs-code 🇩🇪 848 91 261ms 13 Dec 2025 192nd error256 848 91 293ms 14 Jan 2026 192nd GolfingSuccess 🇬🇷 848 91 272ms 14 Jan 2026 192nd Natanaelel 🇸🇪 848 91 311ms 24 Mar 2026 192nd edsrzf 🇳🇿 848 91 292ms 20 days ago 192nd Steffan153 🇫🇮 848 91 285ms 20 days ago 198th edsrzf 🇳🇿 847 78 110ms 20 days ago 198th Steffan153 🇫🇮 847 78 102ms 20 days ago 198th snoozingnewt 🇨🇦 847 78 105ms 8 days ago 201st edsrzf 🇳🇿 847 94 6ms 26 days ago 201st albanian-laundromat 🇺🇸 847 94 6ms 26 days ago 201st sean-niemann 🇺🇸 847 94 6ms 22 days ago 201st Steffan153 🇫🇮 847 94 6ms 20 days ago 205th GolfingSuccess 🇬🇷 846 51 36ms 12 Jan 2026 205th sean-niemann 🇺🇸 846 51 34ms 15 Jan 2026 205th Steffan153 🇫🇮 846 51 34ms 19 Feb 2026 205th Natanaelel 🇸🇪 846 51 33ms 24 Mar 2026 205th voytxt 🇨🇿 846 51 37ms 20 days ago 205th weliveinhell 🇭🇹 846 51 33ms 9 days ago 211th edsrzf 🇳🇿 844 48 818ms 27 days ago 212th DialFrost 🇸🇬 844 70 116ms 26 days ago 212th Steffan153 🇫🇮 844 70 2,152ms 20 days ago 214th error256 843 80 466ms 16 Jan 2026 215th error256 842 55 2,436ms 15 Feb 2026 216th Yax42 🇫🇷 842 75 4ms 24 Mar 2026 217th edsrzf 🇳🇿 841 96 32ms 24 Mar 2026 217th Steffan153 🇫🇮 841 96 30ms 22 days ago 219th GolfingSuccess 🇬🇷 841 117 330ms 12 Jan 2026 219th Steffan153 🇫🇮 841 117 329ms 21 days ago 221st kg583 🇺🇸 840 86 23ms 2 Oct 2025 222nd stefangimmillaro 840 99 161ms 21 days ago 222nd Steffan153 🇫🇮 840 99 183ms 20 days ago 224th albanian-laundromat 🇺🇸 839 69 514ms 6 Dec 2025 225th GolfingSuccess 🇬🇷 839 70 15ms 20 days ago 225th rucin93 🇵🇱 839 70 15ms 16 days ago 227th error256 839 91 64ms 12 Jan 2026 227th Steffan153 🇫🇮 839 91 60ms 26 days ago 229th bitsandbeyond 🇳🇱 838 43 1,233ms 19 Mar 2026 230th lifthrasiir 🇰🇷 838 77 186ms 11 Dec 2024 230th Shanethegamer 🇺🇸 838 77 18ms 13 Dec 2024 230th addmai 838 77 20ms 24 Jul 2025 230th hiichbindermax 838 77 18ms 17 Aug 2025 230th 5cw 🇺🇸 838 77 20ms 22 Aug 2025 230th davecame 838 77 142ms 25 Sep 2025 230th SirBogman 🇺🇸 838 77 244ms 13 Oct 2025 230th jtaxen 838 77 27ms 16 Oct 2025 230th albanian-laundromat 🇺🇸 838 77 23ms 25 Nov 2025 230th anter69 🇭🇺 838 77 147ms 4 Feb 2026 230th Matter1024 🇮🇳 838 77 19ms 12 Feb 2026 First Prev 161–240 of 628 Next Last