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 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 Dragon Curve 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 Dragon Curve 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 Chars Time Submitted 392nd StefanHabel 🇨🇦 731 77 606ms 24 Mar 2026 392nd ahmetdemirag 🇨🇾 731 77 18ms 24 Mar 2026 392nd tomh1012 731 77 19ms 24 Mar 2026 392nd qpwoeirut 731 77 19ms 25 Mar 2026 392nd btjones0 731 77 18ms 25 Mar 2026 392nd ComradeSquirrel 731 77 18ms 25 Mar 2026 392nd bzijlema 🇳🇱 731 77 19ms 25 Mar 2026 392nd Lv0Sys 🇵🇱 731 77 20ms 26 Mar 2026 392nd LostSyntax21 🇬🇧 731 77 18ms 27 days ago 392nd scpchicken 🇵🇼 731 77 18ms 24 days ago 392nd Andrey2001 731 77 19ms 24 days ago 392nd guilhem-roy 🇫🇷 731 77 17ms 24 days ago 392nd jameswmccarty 731 77 19ms 23 days ago 392nd mantaslu 🇱🇹 731 77 18ms 22 days ago 392nd firegene 🇮🇪 731 77 18ms 22 days ago 392nd Pyroan 731 77 19ms 19 days ago 392nd retrohun 731 77 183ms 19 days ago 392nd klixel 🇨🇦 731 77 19ms 17 days ago 392nd FoxInTheClouds 731 77 19ms 11 days ago 420th dokutan 728 101 531ms 15 days ago 421st MeWhenI 🇻🇦 727 87 4ms 24 days ago 422nd MeWhenI 🇻🇦 723 81 463ms 25 days ago 423rd plcc0 722 18 9ms 27 days ago 424th Matter1024 🇮🇳 722 83 163ms 20 days ago 425th madex 🇩🇪 721 50 1,078ms 27 Mar 2026 426th solisolu 721 78 41ms 10 Nov 2025 426th Alex-x90 🇺🇸 721 78 21ms 13 days ago 428th emgordon154 719 231 1,313ms 28 Mar 2026 429th edsrzf 🇳🇿 718 94 459ms 20 May 2025 430th Andriamanitra 🇫🇮 716 45 42ms 24 Mar 2026 431st BREMAUCY 🇫🇷 712 79 19ms 24 Mar 2026 431st mishak-sys 712 79 418ms 26 Mar 2026 431st KatieLG 🇬🇧 712 79 18ms 24 days ago 431st ZakkkkAttackkkk 🇵🇭 712 79 45ms 19 days ago 431st lelbal 712 79 19ms 10 days ago 436th Shanethegamer 🇺🇸 711 80 5ms 3 Jun 2025 437th madex 🇩🇪 711 94 109ms 28 Mar 2026 438th elgan65536 🇺🇸 711 117 163ms 27 days ago 439th madex 🇩🇪 710 84 447ms 28 Mar 2026 440th albanian-laundromat 🇺🇸 709 61 13ms 4 Mar 2026 440th gigaprofisi 🇺🇸 709 61 26ms 2 days ago 442nd Shanethegamer 🇺🇸 708 139 328ms 13 Dec 2024 443rd aadenboy 🇺🇸 703 81 5ms 26 days ago 444th Matter1024 🇮🇳 700 46 41ms 24 Mar 2026 445th Andrey-Plotnikov 698 62 61ms 12 Jan 2025 445th XenThe 🇬🇧 698 62 12ms 15 Jul 2025 445th JOrE20 698 62 26ms 27 Feb 2026 445th Protothor 698 62 12ms 27 Mar 2026 445th madeforlosers 698 62 26ms 24 days ago 445th dokutan 698 62 29ms 15 days ago 445th scpchicken 🇵🇼 698 62 13ms 2 days ago 452nd madex 🇩🇪 697 39 9ms 28 Mar 2026 453rd Aquateraneal 🇺🇸 695 81 22ms 26 Mar 2026 453rd luuumine 🇫🇷 695 81 17ms 27 Mar 2026 455th albanian-laundromat 🇺🇸 695 95 114ms 6 Jan 2026 456th CLOStrophobic 🇮🇹 695 104 23ms 18 Jan 2025 457th albanian-laundromat 🇺🇸 689 75 115ms 5 Jan 2026 458th dokutan 688 57 1,372ms 15 days ago 459th zakariamouhid 687 63 12ms 11 days ago 460th scpchicken 🇵🇼 687 92 4ms 2 days ago 461st bricknellj 686 82 18ms 30 Jan 2025 461st cros107 🇦🇺 686 82 1,060ms 16 days ago 461st celiendonze 🇨🇭 686 82 18ms 9 days ago 464th KatieLG 🇬🇧 685 47 46ms 24 days ago 465th albanian-laundromat 🇺🇸 684 19 4ms 13 Feb 2026 466th DialFrost 🇸🇬 682 48 54ms 16 Dec 2025 466th retrohun 682 48 2,663ms 19 days ago 468th Arkadios200 682 98 116ms 16 days ago 469th Shanethegamer 🇺🇸 680 76 120ms 13 Dec 2024 470th msbranicky 678 83 18ms 27 Mar 2026 471st AlephSquirrel 675 107 23ms 14 May 2025 472nd Jonson26 674 109 528ms 15 days ago 473rd madex 🇩🇪 673 75 465ms 27 Mar 2026 473rd jusaka 673 75 460ms 9 days ago 475th CaedenHarper 🇨🇦 673 87 463ms 24 Mar 2026 476th Shanethegamer 🇺🇸 671 124 151ms 3 Jun 2025 477th madex 🇩🇪 668 101 141ms 28 Mar 2026 478th madex 🇩🇪 666 79 29ms 28 Mar 2026 479th KatieLG 🇬🇧 665 65 13ms 24 days ago 480th AlephSquirrel 664 76 427ms 3 Dec 2025 First Prev 401–480 of 635 Next Last