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 albanian-laundromat 🇺🇸 767 192 201ms 18 days ago 402nd CaedenHarper 🇨🇦 765 96 379ms 21 days ago 403rd albanian-laundromat 🇺🇸 764 53 901ms 6 Dec 2025 404th scpchicken 🇵🇼 762 33 36ms 10 days ago 405th albanian-laundromat 🇺🇸 762 265 68ms 8 Dec 2025 406th MeWhenI 🇻🇦 761 286 211ms 20 days ago 407th DialFrost 🇸🇬 758 97 403ms 15 days ago 407th Jacob385 758 97 393ms 2 days ago 409th 4atj 755 36 228ms 21 May 2025 410th Shanethegamer 🇺🇸 754 52 1,314ms 13 Dec 2024 411th Steffan153 🇫🇮 753 114 54ms 14 days ago 412th Shanethegamer 🇺🇸 751 89 106ms 13 Dec 2024 413th Lv0Sys 🇵🇱 749 43 38ms 19 days ago 414th GolfingSuccess 🇬🇷 745 112 44ms 24 Jan 2026 415th caleblin125 742 87 19ms 17 hours ago 416th Shanethegamer 🇺🇸 742 99 352ms 24 Sep 2025 417th albanian-laundromat 🇺🇸 742 108 31ms 5 Jan 2026 418th Shanethegamer 🇺🇸 740 81 339ms 3 Jun 2025 419th albanian-laundromat 🇺🇸 736 97 46ms 6 Dec 2025 420th h3ra993huskp 🇯🇵 735 100 392ms 17 days ago 420th kmathis22 735 100 403ms 15 days ago 422nd Natanaelel 🇸🇪 734 37 10ms 11 May 2025 423rd Shanethegamer 🇺🇸 733 92 462ms 20 May 2025 424th aksyristos 731 59 25ms 16 days ago 424th acollett89 731 59 24ms 16 days ago 426th dokutan 728 101 361ms 4 days ago 427th MeWhenI 🇻🇦 725 87 4ms 14 days ago 428th MeWhenI 🇻🇦 723 81 426ms 15 days ago 429th plcc0 722 18 9ms 17 days ago 430th Matter1024 🇮🇳 722 83 163ms 10 days ago 431st madex 🇩🇪 721 50 896ms 19 days ago 432nd madex 🇩🇪 720 75 465ms 19 days ago 433rd edsrzf 🇳🇿 718 94 459ms 20 May 2025 434th Andriamanitra 🇫🇮 716 45 37ms 21 days ago 435th Shanethegamer 🇺🇸 711 80 5ms 3 Jun 2025 436th madex 🇩🇪 711 94 99ms 17 days ago 437th elgan65536 🇺🇸 711 117 156ms 16 days ago 438th AlephSquirrel 710 76 427ms 3 Dec 2025 439th madex 🇩🇪 710 84 359ms 17 days ago 440th Shanethegamer 🇺🇸 708 139 328ms 13 Dec 2024 441st albanian-laundromat 🇺🇸 707 61 13ms 4 Mar 2026 442nd emgordon154 706 231 1,663ms 18 days ago 443rd aadenboy 🇺🇸 703 81 5ms 15 days ago 444th flekAI 701 77 548ms 2 days ago 445th Matter1024 🇮🇳 700 46 38ms 22 days ago 446th madex 🇩🇪 697 39 9ms 17 days ago 447th Andrey-Plotnikov 696 62 39ms 12 Jan 2025 447th XenThe 🇬🇧 696 62 12ms 15 Jul 2025 447th JOrE20 696 62 31ms 27 Feb 2026 447th Protothor 696 62 13ms 18 days ago 447th madeforlosers 696 62 36ms 13 days ago 447th dokutan 696 62 24ms 4 days ago 453rd albanian-laundromat 🇺🇸 690 95 114ms 6 Jan 2026 454th CLOStrophobic 🇮🇹 690 104 23ms 18 Jan 2025 455th albanian-laundromat 🇺🇸 689 75 119ms 5 Jan 2026 456th dokutan 688 57 1,275ms 4 days ago 457th dokutan 687 74 160ms 4 days ago 458th KatieLG 🇬🇧 685 47 40ms 14 days ago 459th zakariamouhid 685 63 12ms 24 hours ago 460th albanian-laundromat 🇺🇸 684 19 4ms 13 Feb 2026 461st DialFrost 🇸🇬 682 48 54ms 16 Dec 2025 461st retrohun 682 48 2,663ms 8 days ago 463rd Arkadios200 682 98 111ms 5 days ago 464th Shanethegamer 🇺🇸 680 76 125ms 13 Dec 2024 465th Jonson26 674 109 350ms 5 days ago 466th CaedenHarper 🇨🇦 673 87 380ms 21 days ago 467th AlephSquirrel 671 107 23ms 14 May 2025 468th Shanethegamer 🇺🇸 671 124 147ms 3 Jun 2025 469th madex 🇩🇪 668 101 141ms 17 days ago 470th KatieLG 🇬🇧 664 65 12ms 14 days ago 470th flekAI 664 65 12ms 2 days ago 472nd madex 🇩🇪 661 79 29ms 17 days ago 473rd KatieLG 🇬🇧 658 82 424ms 14 days ago 474th madex 🇩🇪 658 121 8ms 17 days ago 475th albanian-laundromat 🇺🇸 653 80 28ms 21 days ago 476th flekAI 653 84 7ms 2 days ago 477th Mikey-Beep 🇬🇧 652 99 25ms 7 days ago 478th Shanethegamer 🇺🇸 648 75 67ms 7 May 2025 479th JOrE20 645 100 46ms 15 Dec 2025 479th tails618 645 100 22ms 2 days ago First Prev 401–480 of 585 Next Last