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 321st CaedenHarper 🇨🇦 781 22 96ms 6 days ago 322nd DialFrost 🇸🇬 781 55 39ms 6 days ago 323rd emgordon154 779 50 1,258ms 8 days ago 323rd edsrzf 🇳🇿 779 50 1,364ms 6 days ago 323rd madex 🇩🇪 779 50 1,295ms 6 days ago 326th kg583 🇺🇸 779 106 38ms 9 May 2025 327th albanian-laundromat 778 69 380ms 22 Feb 2026 328th albanian-laundromat 778 76 188ms 24 days ago 328th MeWhenI 🇻🇦 778 76 188ms 7 days ago 330th albanian-laundromat 777 85 98ms 6 Dec 2025 331st albanian-laundromat 775 75 455ms 6 Jan 2026 332nd msbranicky 773 83 18ms 5 days ago 333rd canissimia 🇦🇶 772 145 14ms 5 days ago 334th emgordon154 771 158 1,738ms 7 hours ago 335th roelderickx 769 122 87ms 12 hours ago 336th CaedenHarper 🇨🇦 767 56 12ms 8 days ago 336th MeWhenI 🇻🇦 767 56 12ms 7 days ago 336th madex 🇩🇪 767 56 13ms 6 days ago 336th edsrzf 🇳🇿 767 56 25ms 24 hours ago 340th error256 767 67 111ms 30 Jan 2026 341st albanian-laundromat 767 77 412ms 6 Dec 2025 342nd albanian-laundromat 767 192 201ms 5 days ago 343rd CLOStrophobic 🇮🇹 765 108 47ms 17 Feb 2025 344th emgordon154 764 113 119ms 7 hours ago 345th Shanethegamer 🇺🇸 763 42 41ms 13 Dec 2024 345th anter69 🇭🇺 763 42 193ms 4 Feb 2026 345th madex 🇩🇪 763 42 41ms 6 days ago 345th GolfingSuccess 🇬🇷 763 42 192ms 25 hours ago 349th albanian-laundromat 763 47 1,193ms 5 Jan 2026 350th solisolu 763 82 4ms 6 days ago 351st albanian-laundromat 762 265 68ms 8 Dec 2025 352nd MeWhenI 🇻🇦 761 286 231ms 7 days ago 353rd albanian-laundromat 758 53 975ms 6 Dec 2025 354th CaedenHarper 🇨🇦 758 96 379ms 8 days ago 355th DialFrost 🇸🇬 751 97 1,249ms 2 days ago 356th 4atj 750 36 230ms 21 May 2025 357th Shanethegamer 🇺🇸 749 52 1,314ms 13 Dec 2024 358th dokutan 746 72 525ms 15 Aug 2025 359th Lv0Sys 🇵🇱 745 43 38ms 6 days ago 360th emgordon154 745 84 4ms 7 hours ago 361st snyderek 🇺🇸 743 101 424ms 32 hours ago 362nd Shanethegamer 🇺🇸 742 89 107ms 13 Dec 2024 363rd albanian-laundromat 742 108 31ms 5 Jan 2026 364th GolfingSuccess 🇬🇷 737 112 44ms 24 Jan 2026 365th Shanethegamer 🇺🇸 736 99 352ms 24 Sep 2025 366th emgordon154 736 102 68ms 7 hours ago 367th Shanethegamer 🇺🇸 730 81 348ms 3 Jun 2025 368th Natanaelel 🇸🇪 729 37 10ms 11 May 2025 369th emgordon154 729 44 41ms 8 days ago 370th aksyristos 728 59 12ms 2 days ago 370th acollett89 728 59 12ms 2 days ago 372nd h3ra993huskp 🇯🇵 728 100 392ms 4 days ago 372nd kmathis22 728 100 403ms 2 days ago 374th Shanethegamer 🇺🇸 727 92 462ms 20 May 2025 375th albanian-laundromat 724 97 44ms 6 Dec 2025 376th plcc0 722 18 9ms 3 days ago 377th jusaka 721 89 19ms 3 hours ago 378th rucin93 🇵🇱 721 101 373ms 27 days ago 379th MeWhenI 🇻🇦 719 87 4ms 29 hours ago 380th MeWhenI 🇻🇦 718 81 428ms 46 hours ago 381st madex 🇩🇪 717 50 896ms 5 days ago 382nd madex 🇩🇪 716 75 439ms 5 days ago 383rd Andriamanitra 🇫🇮 712 45 37ms 8 days ago 384th edsrzf 🇳🇿 711 94 459ms 20 May 2025 385th elgan65536 🇺🇸 708 117 156ms 3 days ago 386th AlephSquirrel 707 76 445ms 3 Dec 2025 387th Jacob385 707 103 386ms 4 days ago 388th emgordon154 706 231 1,484ms 4 days ago 389th MeWhenI 🇻🇦 705 33 28ms 7 days ago 390th albanian-laundromat 704 61 13ms 4 Mar 2026 391st Shanethegamer 🇺🇸 703 80 5ms 3 Jun 2025 392nd madex 🇩🇪 703 84 359ms 4 days ago 393rd madex 🇩🇪 703 94 99ms 4 days ago 394th Shanethegamer 🇺🇸 702 139 309ms 13 Dec 2024 395th Matter1024 🇮🇳 697 46 38ms 8 days ago 396th aadenboy 🇺🇸 695 81 5ms 2 days ago 397th Andrey-Plotnikov 693 62 36ms 12 Jan 2025 397th XenThe 🇬🇧 693 62 11ms 15 Jul 2025 397th JOrE20 693 62 29ms 27 Feb 2026 397th Protothor 693 62 12ms 5 days ago First Prev 321–400 of 481 Next Last