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 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 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 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 Bytes Time Submitted 401st Shanethegamer 🇺🇸 767 42 41ms 13 Dec 2024 401st anter69 🇭🇺 767 42 193ms 4 Feb 2026 401st madex 🇩🇪 767 42 40ms 24 days ago 401st GolfingSuccess 🇬🇷 767 42 192ms 19 days ago 405th albanian-laundromat 🇺🇸 767 47 953ms 5 Jan 2026 406th scpchicken 🇵🇼 765 33 36ms 15 days ago 407th CaedenHarper 🇨🇦 765 96 379ms 26 days ago 408th albanian-laundromat 🇺🇸 764 53 901ms 6 Dec 2025 409th Steffan153 🇫🇮 760 114 54ms 19 days ago 410th DialFrost 🇸🇬 758 97 403ms 20 days ago 410th Jacob385 758 97 393ms 7 days ago 412th 4atj 755 36 228ms 21 May 2025 413th Shanethegamer 🇺🇸 754 52 1,605ms 13 Dec 2024 414th Shanethegamer 🇺🇸 751 89 106ms 13 Dec 2024 415th Lv0Sys 🇵🇱 749 43 38ms 25 days ago 416th albanian-laundromat 🇺🇸 748 108 31ms 5 Jan 2026 417th GolfingSuccess 🇬🇷 745 112 44ms 24 Jan 2026 418th albanian-laundromat 🇺🇸 744 97 46ms 6 Dec 2025 419th caleblin125 742 87 19ms 6 days ago 420th Shanethegamer 🇺🇸 742 99 352ms 24 Sep 2025 421st Shanethegamer 🇺🇸 740 81 339ms 3 Jun 2025 422nd h3ra993huskp 🇯🇵 735 100 392ms 22 days ago 422nd kmathis22 735 100 403ms 20 days ago 424th Natanaelel 🇸🇪 734 37 10ms 11 May 2025 425th Shanethegamer 🇺🇸 733 92 462ms 20 May 2025 426th aksyristos 731 59 14ms 21 days ago 426th acollett89 731 59 13ms 21 days ago 428th dokutan 728 101 361ms 9 days ago 429th MeWhenI 🇻🇦 725 87 4ms 19 days ago 430th MeWhenI 🇻🇦 723 81 413ms 20 days ago 431st plcc0 722 18 9ms 22 days ago 432nd Matter1024 🇮🇳 722 83 163ms 15 days ago 433rd madex 🇩🇪 721 50 979ms 24 days ago 434th madex 🇩🇪 720 75 465ms 24 days ago 434th jusaka 720 75 460ms 4 days ago 436th emgordon154 719 231 1,552ms 23 days ago 437th edsrzf 🇳🇿 718 94 459ms 20 May 2025 438th Andriamanitra 🇫🇮 716 45 37ms 27 days ago 439th Shanethegamer 🇺🇸 711 80 5ms 3 Jun 2025 440th madex 🇩🇪 711 94 111ms 23 days ago 441st elgan65536 🇺🇸 711 117 164ms 21 days ago 442nd AlephSquirrel 710 76 427ms 3 Dec 2025 443rd madex 🇩🇪 710 84 359ms 22 days ago 444th Shanethegamer 🇺🇸 708 139 328ms 13 Dec 2024 445th albanian-laundromat 🇺🇸 707 61 12ms 4 Mar 2026 446th aadenboy 🇺🇸 703 81 5ms 21 days ago 447th Matter1024 🇮🇳 700 46 38ms 27 days ago 448th madex 🇩🇪 697 39 9ms 23 days ago 449th Andrey-Plotnikov 696 62 33ms 12 Jan 2025 449th XenThe 🇬🇧 696 62 12ms 15 Jul 2025 449th JOrE20 696 62 27ms 27 Feb 2026 449th Protothor 696 62 11ms 24 days ago 449th madeforlosers 696 62 38ms 19 days ago 449th dokutan 696 62 34ms 9 days ago 455th albanian-laundromat 🇺🇸 695 95 114ms 6 Jan 2026 456th CLOStrophobic 🇮🇹 695 104 23ms 18 Jan 2025 457th dokutan 691 74 168ms 9 days ago 458th albanian-laundromat 🇺🇸 689 75 115ms 5 Jan 2026 459th dokutan 688 57 1,372ms 9 days ago 460th KatieLG 🇬🇧 685 47 40ms 19 days ago 461st zakariamouhid 685 63 12ms 6 days ago 462nd albanian-laundromat 🇺🇸 684 19 4ms 13 Feb 2026 463rd DialFrost 🇸🇬 682 48 54ms 16 Dec 2025 463rd retrohun 682 48 2,663ms 13 days ago 465th Arkadios200 682 98 116ms 11 days ago 466th Shanethegamer 🇺🇸 680 76 120ms 13 Dec 2024 467th AlephSquirrel 675 107 23ms 14 May 2025 468th Jonson26 674 109 350ms 10 days ago 469th CaedenHarper 🇨🇦 673 87 386ms 26 days ago 470th Shanethegamer 🇺🇸 671 124 151ms 3 Jun 2025 471st madex 🇩🇪 668 101 141ms 23 days ago 472nd madex 🇩🇪 666 79 29ms 23 days ago 473rd KatieLG 🇬🇧 664 65 15ms 19 days ago 474th albanian-laundromat 🇺🇸 658 80 28ms 26 days ago 475th KatieLG 🇬🇧 658 82 424ms 19 days ago 476th madex 🇩🇪 658 121 8ms 23 days ago 477th Shanethegamer 🇺🇸 657 75 67ms 7 May 2025 478th Mikey-Beep 🇬🇧 652 99 25ms 12 days ago 479th jusaka 652 228 1,710ms 5 days ago 480th JOrE20 645 100 46ms 15 Dec 2025 First Prev 401–480 of 626 Next Last