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 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 Apéry’s Constant Binary Lambda Calculus Connect Four Continued Fractions 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 Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Taxicab Numbers Turtle Tutorial All Languages ><> 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 ALGOL 68 APL ArkScript 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 ><> 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 ALGOL 68 APL ArkScript 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 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 Apéry’s Constant Binary Lambda Calculus Connect Four Continued Fractions 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 Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Taxicab Numbers Turtle Tutorial # Golfer Points Bytes Time Submitted 143rd Matter1024 🇮🇳 0 77 17ms 3 days ago 162nd jameswmccarty 0 78 20ms 29 Mar 2025 162nd DialFrost 🇸🇬 0 78 939ms 10 May 2025 162nd DialFrost 🇸🇬 0 78 3ms 10 May 2025 162nd solisolu 0 78 20ms 10 Nov 2025 166th KasperKivimaeki 🇫🇮 0 79 3ms 1 Nov 2025 167th Shanethegamer 🇺🇸 0 80 5ms 3 Jun 2025 167th error256 0 80 482ms 16 Jan 2026 169th Shanethegamer 🇺🇸 0 81 291ms 3 Jun 2025 169th albanian-laundromat 0 81 9ms 11 hours ago 171st bricknellj 0 82 17ms 30 Jan 2025 171st dokutan 0 82 17ms 15 Aug 2025 171st aksyristos 0 82 23ms 13 Jan 2026 174th GolfingSuccess 🇬🇷 0 83 111ms 12 Jan 2026 174th GolfingSuccess 🇬🇷 0 83 386ms 12 Jan 2026 174th error256 0 83 430ms 12 Jan 2026 174th albanian-laundromat 0 83 9ms 20 days ago 178th albanian-laundromat 0 84 135ms 10 hours ago 179th Shanethegamer 🇺🇸 0 85 11ms 13 Dec 2024 179th edsrzf 🇳🇿 0 85 973ms 25 May 2025 179th albanian-laundromat 0 85 92ms 6 Dec 2025 179th GolfingSuccess 🇬🇷 0 85 25ms 14 Jan 2026 183rd kg583 🇺🇸 0 86 22ms 2 Oct 2025 184th sean-niemann 🇺🇸 0 87 42ms 9 May 2025 185th edsrzf 🇳🇿 0 88 2,069ms 15 May 2025 185th muser-logiccpu 🇺🇦 0 88 72ms 2 Sep 2025 185th solisolu 0 88 3ms 11 Nov 2025 185th albanian-laundromat 0 88 1,544ms 5 Jan 2026 185th GolfingSuccess 🇬🇷 0 88 993ms 14 Jan 2026 185th error256 0 88 2,898ms 14 Jan 2026 185th IanUtley 0 88 2,887ms 16 Jan 2026 192nd Shanethegamer 🇺🇸 0 89 97ms 13 Dec 2024 192nd GolfingSuccess 🇬🇷 0 89 61ms 12 Jan 2026 194th sean-niemann 🇺🇸 0 90 6ms 10 May 2025 194th rucin93 🇵🇱 0 90 7ms 10 May 2025 194th dokutan 0 90 66ms 7 days ago 197th ovs-code 🇩🇪 0 91 261ms 13 Dec 2025 197th error256 0 91 62ms 12 Jan 2026 197th error256 0 91 293ms 14 Jan 2026 197th GolfingSuccess 🇬🇷 0 91 272ms 14 Jan 2026 201st Shanethegamer 🇺🇸 0 92 462ms 20 May 2025 202nd Shanethegamer 🇺🇸 0 94 414ms 13 Dec 2024 202nd edsrzf 🇳🇿 0 94 459ms 20 May 2025 204th albanian-laundromat 0 95 119ms 6 Jan 2026 205th Natanaelel 🇸🇪 0 96 266ms 8 May 2025 205th stefangimmillaro 0 96 20ms 10 May 2025 205th Shanethegamer 🇺🇸 0 96 373ms 3 Jun 2025 205th albanian-laundromat 0 96 5ms 6 Dec 2025 209th edsrzf 🇳🇿 0 97 512ms 24 Sep 2025 209th albanian-laundromat 0 97 44ms 6 Dec 2025 211th kumavale 0 98 155ms 26 Nov 2025 211th error256 0 98 158ms 16 Jan 2026 213th edsrzf 🇳🇿 0 99 481ms 9 May 2025 213th Shanethegamer 🇺🇸 0 99 352ms 24 Sep 2025 215th edsrzf 🇳🇿 0 100 145ms 9 May 2025 215th edsrzf 🇳🇿 0 100 307ms 9 May 2025 215th edsrzf 🇳🇿 0 100 16ms 9 May 2025 215th emgordon154 0 100 7ms 9 May 2025 215th JOrE20 0 100 42ms 15 Dec 2025 220th edsrzf 🇳🇿 0 102 416ms 16 Jun 2025 221st CLOStrophobic 🇮🇹 0 104 21ms 18 Jan 2025 222nd kg583 🇺🇸 0 106 38ms 9 May 2025 223rd Shanethegamer 🇺🇸 0 107 8ms 9 May 2025 223rd AlephSquirrel 0 107 20ms 14 May 2025 225th CLOStrophobic 🇮🇹 0 108 47ms 17 Feb 2025 225th edsrzf 🇳🇿 0 108 1,736ms 21 May 2025 225th albanian-laundromat 0 108 30ms 5 Jan 2026 228th GolfingSuccess 🇬🇷 0 112 44ms 23 days ago 229th Shanethegamer 🇺🇸 0 114 1,370ms 9 May 2025 229th edsrzf 🇳🇿 0 114 600ms 9 May 2025 229th error256 0 114 574ms 17 days ago 232nd GolfingSuccess 🇬🇷 0 117 298ms 12 Jan 2026 233rd edsrzf 🇳🇿 0 118 731ms 9 May 2025 234th Shanethegamer 🇺🇸 0 121 148ms 13 Dec 2024 234th albanian-laundromat 0 121 78ms 9 Dec 2025 234th elgan65536 🇺🇸 0 121 172ms 6 days ago 237th albanian-laundromat 0 122 309ms 5 Jan 2026 238th stefangimmillaro 0 124 292ms 10 May 2025 238th Shanethegamer 🇺🇸 0 124 160ms 3 Jun 2025 240th AstroOrbis 0 126 23ms 12 Aug 2025 First Prev 161–240 of 248 Next Last