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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 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 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 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 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 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 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 Rectangle Fill Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Taxicab Numbers Turtle Tutorial # Golfer Points Chars Time Submitted 1st darrenks 🇺🇸 0 6 50ms 6 days ago 1st 2bular 0 6 45ms 6 days ago 1st Natanaelel 🇸🇪 0 6 48ms 6 days ago 1st plcc0 0 6 48ms 5 days ago 5th kg583 🇺🇸 0 9 921ms 14 May 2025 6th 2bular 0 13 4ms 9 Dec 2024 6th ovs-code 🇩🇪 0 13 4ms 5 Jan 2025 6th Natanaelel 🇸🇪 0 13 4ms 8 May 2025 6th SirBogman 🇺🇸 0 13 4ms 12 Oct 2025 6th namelessiw 0 13 335ms 25 Oct 2025 6th GolfingSuccess 🇬🇷 0 13 4ms 12 Jan 2026 6th zacjl 0 13 4ms 5 days ago 6th Steffan153 🇫🇮 0 13 4ms 4 days ago 6th emgordon154 0 13 4ms 2 days ago 6th bstrat 0 13 5ms 23 hours ago 16th saito-ta 🇯🇵 0 18 78ms 11 May 2025 16th GolfingSuccess 🇬🇷 0 18 85ms 12 Jan 2026 16th pardouin 🇫🇷 0 18 80ms 18 Feb 2026 16th MeWhenI 🇻🇦 0 18 79ms 5 days ago 16th emgordon154 0 18 75ms 4 days ago 16th plcc0 0 18 9ms 47 hours ago 22nd albanian-laundromat 0 19 4ms 13 Feb 2026 22nd plcc0 0 19 86ms 5 days ago 24th AlephSquirrel 0 20 8ms 3 Dec 2025 24th ovs-code 🇩🇪 0 20 9ms 3 Dec 2025 26th CaedenHarper 🇨🇦 0 22 94ms 4 days ago 27th albanian-laundromat 0 26 26ms 12 Feb 2026 28th AlephSquirrel 0 27 5ms 3 Dec 2025 28th ovs-code 🇩🇪 0 27 6ms 7 Dec 2025 28th GolfingSuccess 🇬🇷 0 27 27ms 26 Jan 2026 31st 2bular 0 28 36ms 9 Oct 2025 31st SirBogman 🇺🇸 0 28 37ms 9 Oct 2025 33rd Natanaelel 🇸🇪 0 29 35ms 11 May 2025 33rd ovs-code 🇩🇪 0 29 35ms 9 Oct 2025 33rd ovs-code 🇩🇪 0 29 125ms 3 Dec 2025 33rd Natanaelel 🇸🇪 0 29 149ms 6 days ago 33rd Steffan153 🇫🇮 0 29 188ms 4 days ago 38th error256 0 30 26ms 12 Jan 2026 38th saito-ta 🇯🇵 0 30 25ms 74 mins ago 40th Shanethegamer 🇺🇸 0 32 35ms 19 May 2025 41st MeWhenI 🇻🇦 0 33 28ms 5 days ago 42nd 4atj 0 35 375ms 21 May 2025 42nd error256 0 35 60ms 12 Jan 2026 44th 4atj 0 36 230ms 21 May 2025 45th Natanaelel 🇸🇪 0 37 10ms 11 May 2025 45th saito-ta 🇯🇵 0 37 551ms 89 mins ago 47th Natanaelel 🇸🇪 0 38 41ms 8 May 2025 47th ovs-code 🇩🇪 0 38 38ms 13 Jan 2026 47th Steffan153 🇫🇮 0 38 339ms 19 Feb 2026 47th pardouin 🇫🇷 0 38 37ms 19 Feb 2026 51st Steffan153 🇫🇮 0 39 513ms 6 days ago 51st madex 🇩🇪 0 39 16ms 2 days ago 53rd sean-niemann 🇺🇸 0 40 39ms 20 hours ago 54th stefangimmillaro 0 41 73ms 9 May 2025 54th aksyristos 0 41 104ms 12 days ago 54th MeWhenI 🇻🇦 0 41 42ms 5 days ago 57th Shanethegamer 🇺🇸 0 42 41ms 13 Dec 2024 57th anter69 🇭🇺 0 42 193ms 4 Feb 2026 57th madex 🇩🇪 0 42 41ms 4 days ago 60th bitsandbeyond 🇳🇱 0 43 3,231ms 11 days ago 60th Lv0Sys 🇵🇱 0 43 38ms 4 days ago 60th KatieLG 🇬🇧 0 43 61ms 41 hours ago 63rd error256 0 44 1,261ms 15 Jan 2026 63rd emgordon154 0 44 41ms 6 days ago 65th pardouin 🇫🇷 0 45 1,189ms 15 Feb 2026 65th Andriamanitra 🇫🇮 0 45 37ms 6 days ago 65th stefangimmillaro 0 45 1,255ms 6 days ago 68th Steffan153 🇫🇮 0 46 4,354ms 19 Feb 2026 68th Matter1024 🇮🇳 0 46 38ms 6 days ago 68th Solathian 0 46 98ms 4 days ago 68th ovs-code 🇩🇪 0 46 11ms 3 days ago 68th emgordon154 0 46 11ms 2 days ago 68th sean-niemann 🇺🇸 0 46 4,239ms 27 hours ago 68th Steffan153 🇫🇮 0 46 11ms 25 hours ago 75th albanian-laundromat 0 47 1,193ms 5 Jan 2026 75th anter69 🇭🇺 0 47 1,210ms 4 Feb 2026 77th ovs-code 🇩🇪 0 48 316ms 23 Feb 2025 77th DialFrost 🇸🇬 0 48 54ms 16 Dec 2025 77th antimon2 🇯🇵 0 48 264ms 6 days ago 77th edsrzf 🇳🇿 0 48 1,062ms 6 days ago 1–80 of 425 Next Last