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 albanian-laundromat 767 192 201ms 4 days ago 322nd CLOStrophobic 🇮🇹 765 108 47ms 17 Feb 2025 323rd emgordon154 764 63 6ms 2 days ago 324th solisolu 763 82 4ms 5 days ago 325th albanian-laundromat 762 265 68ms 8 Dec 2025 326th Shanethegamer 🇺🇸 761 42 41ms 13 Dec 2024 326th anter69 🇭🇺 761 42 193ms 4 Feb 2026 326th madex 🇩🇪 761 42 41ms 5 days ago 329th voytxt 🇨🇿 761 61 28ms 1 Jan 2026 329th albanian-laundromat 761 61 13ms 27 days ago 331st MeWhenI 🇻🇦 761 286 231ms 6 days ago 332nd albanian-laundromat 758 53 975ms 6 Dec 2025 333rd CaedenHarper 🇨🇦 756 96 416ms 7 days ago 334th albanian-laundromat 751 77 412ms 6 Dec 2025 335th emgordon154 751 115 80ms 4 days ago 336th 4atj 750 36 230ms 21 May 2025 337th Shanethegamer 🇺🇸 749 52 1,314ms 13 Dec 2024 338th Andrey-Plotnikov 749 62 36ms 12 Jan 2025 338th XenThe 🇬🇧 749 62 11ms 15 Jul 2025 338th JOrE20 749 62 29ms 27 Feb 2026 338th Protothor 749 62 12ms 4 days ago 342nd DialFrost 🇸🇬 749 97 1,249ms 26 hours ago 343rd dokutan 746 72 525ms 15 Aug 2025 344th edsrzf 🇳🇿 746 85 1,065ms 25 May 2025 345th madex 🇩🇪 745 50 896ms 4 days ago 346th Lv0Sys 🇵🇱 743 43 38ms 5 days ago 347th snyderek 🇺🇸 743 101 424ms 3 hours ago 348th albanian-laundromat 742 108 31ms 5 Jan 2026 349th Shanethegamer 🇺🇸 737 89 107ms 13 Dec 2024 350th GolfingSuccess 🇬🇷 737 112 44ms 24 Jan 2026 351st emgordon154 736 85 4ms 12 hours ago 352nd Shanethegamer 🇺🇸 734 99 352ms 24 Sep 2025 353rd Natanaelel 🇸🇪 729 37 10ms 11 May 2025 354th emgordon154 729 103 63ms 12 hours ago 355th Shanethegamer 🇺🇸 727 92 462ms 20 May 2025 356th emgordon154 726 44 41ms 7 days ago 357th h3ra993huskp 🇯🇵 726 100 392ms 2 days ago 357th kmathis22 726 100 403ms 26 hours ago 359th albanian-laundromat 724 97 44ms 6 Dec 2025 360th plcc0 722 18 9ms 2 days ago 361st MeWhenI 🇻🇦 719 87 4ms 62 mins ago 362nd rucin93 🇵🇱 719 101 373ms 26 days ago 363rd madex 🇩🇪 716 75 439ms 4 days ago 364th MeWhenI 🇻🇦 716 81 428ms 18 hours ago 365th KatieLG 🇬🇧 714 65 11ms 37 mins ago 366th edsrzf 🇳🇿 711 94 459ms 20 May 2025 367th Andriamanitra 🇫🇮 710 45 37ms 7 days ago 368th AlephSquirrel 707 76 445ms 3 Dec 2025 369th emgordon154 706 231 1,484ms 3 days ago 370th MeWhenI 🇻🇦 705 33 28ms 6 days ago 371st Jacob385 705 103 386ms 3 days ago 372nd Shanethegamer 🇺🇸 703 80 5ms 3 Jun 2025 373rd elgan65536 🇺🇸 702 117 156ms 2 days ago 374th Shanethegamer 🇺🇸 702 139 309ms 13 Dec 2024 375th madex 🇩🇪 698 94 99ms 3 days ago 376th Matter1024 🇮🇳 695 46 38ms 7 days ago 377th aadenboy 🇺🇸 695 81 5ms 34 hours ago 378th albanian-laundromat 693 95 114ms 6 Jan 2026 379th madex 🇩🇪 692 39 16ms 3 days ago 380th CLOStrophobic 🇮🇹 690 104 21ms 18 Jan 2025 381st madex 🇩🇪 688 84 359ms 3 days ago 382nd albanian-laundromat 685 75 108ms 5 Jan 2026 383rd albanian-laundromat 684 19 4ms 13 Feb 2026 384th Yax42 🇫🇷 683 68 12ms 7 days ago 385th KatieLG 🇬🇧 680 47 40ms 38 mins ago 386th Shanethegamer 🇺🇸 676 76 129ms 13 Dec 2024 387th DialFrost 🇸🇬 675 48 54ms 16 Dec 2025 388th sean-niemann 🇺🇸 675 90 7ms 10 May 2025 389th edsrzf 🇳🇿 671 79 29ms 6 days ago 389th madex 🇩🇪 671 79 29ms 3 days ago 391st AlephSquirrel 671 107 20ms 14 May 2025 392nd CaedenHarper 🇨🇦 666 87 430ms 7 days ago 393rd albanian-laundromat 663 80 28ms 6 days ago 394th Shanethegamer 🇺🇸 663 124 147ms 3 Jun 2025 395th madex 🇩🇪 662 101 141ms 3 days ago 396th KatieLG 🇬🇧 655 82 686ms 43 mins ago 397th madex 🇩🇪 649 121 8ms 3 days ago 398th Shanethegamer 🇺🇸 648 75 71ms 7 May 2025 399th IISResetMe 643 58 308ms 5 days ago 400th JOrE20 641 100 42ms 15 Dec 2025 First Prev 321–400 of 452 Next Last