Gray Code Decoder in all languages in chars. 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 Chars Time Submitted 160th error256 0 80 420ms 19 days ago 162nd Shanethegamer 🇺🇸 0 81 291ms 3 Jun 2025 163rd bricknellj 0 82 17ms 30 Jan 2025 163rd aksyristos 0 82 23ms 22 days ago 165th GolfingSuccess 🇬🇷 0 83 111ms 24 days ago 165th GolfingSuccess 🇬🇷 0 83 386ms 23 days ago 165th error256 0 83 430ms 23 days ago 165th albanian-laundromat 0 83 9ms 9 days ago 169th Shanethegamer 🇺🇸 0 85 11ms 13 Dec 2024 169th edsrzf 🇳🇿 0 85 973ms 25 May 2025 169th albanian-laundromat 0 85 92ms 6 Dec 2025 169th GolfingSuccess 🇬🇷 0 85 25ms 22 days ago 173rd kg583 🇺🇸 0 86 22ms 2 Oct 2025 174th sean-niemann 🇺🇸 0 87 42ms 9 May 2025 174th error256 0 87 2,932ms 21 days ago 174th IanUtley 0 87 2,918ms 19 days ago 177th edsrzf 🇳🇿 0 88 2,069ms 15 May 2025 177th muser-logiccpu 🇺🇦 0 88 72ms 2 Sep 2025 177th solisolu 0 88 3ms 11 Nov 2025 177th albanian-laundromat 0 88 1,544ms 5 Jan 2026 177th GolfingSuccess 🇬🇷 0 88 993ms 21 days ago 182nd Shanethegamer 🇺🇸 0 89 97ms 13 Dec 2024 182nd GolfingSuccess 🇬🇷 0 89 61ms 23 days ago 184th sean-niemann 🇺🇸 0 90 6ms 10 May 2025 184th rucin93 🇵🇱 0 90 7ms 10 May 2025 186th ovs-code 🇩🇪 0 91 261ms 13 Dec 2025 186th error256 0 91 62ms 23 days ago 186th error256 0 91 293ms 21 days ago 186th GolfingSuccess 🇬🇷 0 91 272ms 21 days ago 190th Shanethegamer 🇺🇸 0 92 442ms 20 May 2025 191st Shanethegamer 🇺🇸 0 94 414ms 13 Dec 2024 191st edsrzf 🇳🇿 0 94 458ms 20 May 2025 193rd albanian-laundromat 0 95 119ms 6 Jan 2026 194th Natanaelel 🇸🇪 0 96 266ms 8 May 2025 194th stefangimmillaro 0 96 20ms 10 May 2025 194th Shanethegamer 🇺🇸 0 96 373ms 3 Jun 2025 194th albanian-laundromat 0 96 5ms 6 Dec 2025 198th edsrzf 🇳🇿 0 97 512ms 24 Sep 2025 198th albanian-laundromat 0 97 44ms 6 Dec 2025 200th kumavale 0 98 154ms 26 Nov 2025 200th error256 0 98 147ms 19 days ago 202nd edsrzf 🇳🇿 0 99 472ms 9 May 2025 202nd Shanethegamer 🇺🇸 0 99 352ms 24 Sep 2025 204th edsrzf 🇳🇿 0 100 145ms 9 May 2025 204th edsrzf 🇳🇿 0 100 307ms 9 May 2025 204th edsrzf 🇳🇿 0 100 16ms 9 May 2025 204th emgordon154 0 100 7ms 9 May 2025 204th JOrE20 0 100 43ms 15 Dec 2025 209th edsrzf 🇳🇿 0 102 416ms 16 Jun 2025 210th CLOStrophobic 🇮🇹 0 104 21ms 18 Jan 2025 211th kg583 🇺🇸 0 106 38ms 9 May 2025 212th Shanethegamer 🇺🇸 0 107 8ms 9 May 2025 212th AlephSquirrel 0 107 20ms 14 May 2025 214th CLOStrophobic 🇮🇹 0 108 47ms 17 Feb 2025 214th edsrzf 🇳🇿 0 108 1,736ms 21 May 2025 214th albanian-laundromat 0 108 30ms 5 Jan 2026 217th GolfingSuccess 🇬🇷 0 112 43ms 12 days ago 218th Shanethegamer 🇺🇸 0 114 1,370ms 9 May 2025 218th edsrzf 🇳🇿 0 114 600ms 9 May 2025 218th error256 0 114 619ms 6 days ago 221st GolfingSuccess 🇬🇷 0 117 268ms 23 days ago 222nd edsrzf 🇳🇿 0 118 762ms 9 May 2025 223rd Shanethegamer 🇺🇸 0 121 148ms 13 Dec 2024 223rd albanian-laundromat 0 121 78ms 9 Dec 2025 225th albanian-laundromat 0 122 276ms 5 Jan 2026 226th stefangimmillaro 0 124 294ms 10 May 2025 226th Shanethegamer 🇺🇸 0 124 151ms 3 Jun 2025 228th AstroOrbis 0 126 23ms 12 Aug 2025 229th MeWhenI 🇻🇦 0 129 525ms 8 May 2025 229th rucin93 🇵🇱 0 129 424ms 9 May 2025 231st albanian-laundromat 0 135 44ms 21 days ago 232nd edsrzf 🇳🇿 0 136 4,929ms 19 May 2025 233rd Shanethegamer 🇺🇸 0 139 291ms 13 Dec 2024 234th Shanethegamer 🇺🇸 0 146 31ms 9 May 2025 235th albanian-laundromat 0 207 1,450ms 6 Jan 2026 236th albanian-laundromat 0 265 50ms 8 Dec 2025 First Prev 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