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 158th solisolu 0 78 20ms 10 Nov 2025 162nd KasperKivimaeki 🇫🇮 0 79 3ms 1 Nov 2025 163rd Shanethegamer 🇺🇸 0 80 5ms 3 Jun 2025 163rd error256 0 80 482ms 16 Jan 2026 165th Shanethegamer 🇺🇸 0 81 291ms 3 Jun 2025 166th bricknellj 0 82 17ms 30 Jan 2025 166th aksyristos 0 82 23ms 13 Jan 2026 168th GolfingSuccess 🇬🇷 0 83 111ms 12 Jan 2026 168th GolfingSuccess 🇬🇷 0 83 386ms 12 Jan 2026 168th error256 0 83 430ms 12 Jan 2026 168th albanian-laundromat 0 83 9ms 18 days ago 172nd Shanethegamer 🇺🇸 0 85 11ms 13 Dec 2024 172nd edsrzf 🇳🇿 0 85 973ms 25 May 2025 172nd albanian-laundromat 0 85 92ms 6 Dec 2025 172nd GolfingSuccess 🇬🇷 0 85 25ms 14 Jan 2026 176th kg583 🇺🇸 0 86 22ms 2 Oct 2025 177th sean-niemann 🇺🇸 0 87 42ms 9 May 2025 177th error256 0 87 2,932ms 14 Jan 2026 177th IanUtley 0 87 2,918ms 16 Jan 2026 180th edsrzf 🇳🇿 0 88 2,069ms 15 May 2025 180th muser-logiccpu 🇺🇦 0 88 72ms 2 Sep 2025 180th solisolu 0 88 3ms 11 Nov 2025 180th albanian-laundromat 0 88 1,544ms 5 Jan 2026 180th GolfingSuccess 🇬🇷 0 88 993ms 14 Jan 2026 185th Shanethegamer 🇺🇸 0 89 97ms 13 Dec 2024 185th GolfingSuccess 🇬🇷 0 89 61ms 12 Jan 2026 187th sean-niemann 🇺🇸 0 90 6ms 10 May 2025 187th rucin93 🇵🇱 0 90 7ms 10 May 2025 189th ovs-code 🇩🇪 0 91 261ms 13 Dec 2025 189th error256 0 91 62ms 12 Jan 2026 189th error256 0 91 293ms 14 Jan 2026 189th GolfingSuccess 🇬🇷 0 91 272ms 14 Jan 2026 193rd Shanethegamer 🇺🇸 0 92 462ms 20 May 2025 194th Shanethegamer 🇺🇸 0 94 414ms 13 Dec 2024 194th edsrzf 🇳🇿 0 94 459ms 20 May 2025 196th albanian-laundromat 0 95 119ms 6 Jan 2026 197th Natanaelel 🇸🇪 0 96 266ms 8 May 2025 197th stefangimmillaro 0 96 20ms 10 May 2025 197th Shanethegamer 🇺🇸 0 96 373ms 3 Jun 2025 197th albanian-laundromat 0 96 5ms 6 Dec 2025 201st edsrzf 🇳🇿 0 97 512ms 24 Sep 2025 201st albanian-laundromat 0 97 44ms 6 Dec 2025 203rd kumavale 0 98 155ms 26 Nov 2025 203rd error256 0 98 158ms 16 Jan 2026 205th edsrzf 🇳🇿 0 99 481ms 9 May 2025 205th Shanethegamer 🇺🇸 0 99 352ms 24 Sep 2025 207th edsrzf 🇳🇿 0 100 145ms 9 May 2025 207th edsrzf 🇳🇿 0 100 307ms 9 May 2025 207th edsrzf 🇳🇿 0 100 16ms 9 May 2025 207th emgordon154 0 100 7ms 9 May 2025 207th JOrE20 🇺🇸 0 100 42ms 15 Dec 2025 212th edsrzf 🇳🇿 0 102 416ms 16 Jun 2025 213th CLOStrophobic 🇮🇹 0 104 21ms 18 Jan 2025 214th kg583 🇺🇸 0 106 38ms 9 May 2025 215th Shanethegamer 🇺🇸 0 107 8ms 9 May 2025 215th AlephSquirrel 0 107 20ms 14 May 2025 217th CLOStrophobic 🇮🇹 0 108 47ms 17 Feb 2025 217th edsrzf 🇳🇿 0 108 1,736ms 21 May 2025 217th albanian-laundromat 0 108 30ms 5 Jan 2026 220th GolfingSuccess 🇬🇷 0 112 43ms 21 days ago 221st Shanethegamer 🇺🇸 0 114 1,370ms 9 May 2025 221st edsrzf 🇳🇿 0 114 600ms 9 May 2025 221st error256 0 114 574ms 15 days ago 224th GolfingSuccess 🇬🇷 0 117 298ms 12 Jan 2026 225th edsrzf 🇳🇿 0 118 731ms 9 May 2025 226th Shanethegamer 🇺🇸 0 121 148ms 13 Dec 2024 226th albanian-laundromat 0 121 78ms 9 Dec 2025 226th elgan65536 🇺🇸 0 121 172ms 4 days ago 229th albanian-laundromat 0 122 309ms 5 Jan 2026 230th stefangimmillaro 0 124 292ms 10 May 2025 230th Shanethegamer 🇺🇸 0 124 160ms 3 Jun 2025 232nd AstroOrbis 0 126 23ms 12 Aug 2025 233rd MeWhenI 🇻🇦 0 129 525ms 8 May 2025 233rd rucin93 🇵🇱 0 129 424ms 9 May 2025 235th albanian-laundromat 0 134 43ms 37 hours ago 236th edsrzf 🇳🇿 0 136 4,792ms 19 May 2025 237th Shanethegamer 🇺🇸 0 139 302ms 13 Dec 2024 238th Shanethegamer 🇺🇸 0 146 31ms 9 May 2025 239th albanian-laundromat 0 207 1,626ms 6 Jan 2026 240th albanian-laundromat 0 265 50ms 8 Dec 2025 First Prev 161–240 of 240