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 madex 🇩🇪 703 84 359ms 6 days ago 402nd madex 🇩🇪 703 94 99ms 6 days ago 403rd Shanethegamer 🇺🇸 702 139 309ms 13 Dec 2024 404th Matter1024 🇮🇳 697 46 38ms 10 days ago 405th aadenboy 🇺🇸 695 81 5ms 4 days ago 406th Andrey-Plotnikov 693 62 36ms 12 Jan 2025 406th XenThe 🇬🇧 693 62 11ms 15 Jul 2025 406th JOrE20 693 62 29ms 27 Feb 2026 406th Protothor 693 62 12ms 7 days ago 406th madeforlosers 693 62 35ms 2 days ago 411th madex 🇩🇪 692 39 16ms 6 days ago 412th albanian-laundromat 690 95 114ms 6 Jan 2026 413th CLOStrophobic 🇮🇹 690 104 21ms 18 Jan 2025 414th albanian-laundromat 685 75 108ms 5 Jan 2026 415th albanian-laundromat 684 19 4ms 13 Feb 2026 416th KatieLG 🇬🇧 682 47 40ms 3 days ago 417th Shanethegamer 🇺🇸 676 76 129ms 13 Dec 2024 418th DialFrost 🇸🇬 675 48 54ms 16 Dec 2025 419th AlephSquirrel 671 107 20ms 14 May 2025 420th Shanethegamer 🇺🇸 671 124 147ms 3 Jun 2025 421st CaedenHarper 🇨🇦 668 87 430ms 10 days ago 422nd madex 🇩🇪 662 101 141ms 6 days ago 423rd KatieLG 🇬🇧 661 65 11ms 3 days ago 424th madex 🇩🇪 661 79 29ms 6 days ago 425th KatieLG 🇬🇧 656 82 686ms 3 days ago 426th albanian-laundromat 653 80 28ms 10 days ago 427th sean-niemann 🇺🇸 652 90 7ms 10 May 2025 428th madex 🇩🇪 649 121 8ms 6 days ago 429th Shanethegamer 🇺🇸 648 75 71ms 7 May 2025 430th JOrE20 642 100 42ms 15 Dec 2025 431st Yax42 🇫🇷 632 68 12ms 10 days ago 432nd madex 🇩🇪 628 87 12ms 7 days ago 433rd GolfingSuccess 🇬🇷 626 137 94ms 9 days ago 434th HumanoidCPU 625 133 162ms 10 days ago 435th Shanethegamer 🇺🇸 623 68 257ms 13 Dec 2024 436th IISResetMe 618 58 308ms 8 days ago 437th Shanethegamer 🇺🇸 618 94 383ms 13 Dec 2024 438th UnderKoen 🇳🇱 617 139 1,178ms 9 days ago 439th Shanethegamer 🇺🇸 615 96 427ms 3 Jun 2025 440th Shanethegamer 🇺🇸 615 114 1,281ms 9 May 2025 441st brian124634 609 103 4ms 43 hours ago 442nd madex 🇩🇪 605 99 19ms 6 days ago 443rd kasarino 603 104 4ms 9 days ago 444th tomh1012 599 97 378ms 10 days ago 445th albanian-laundromat 598 98 135ms 23 Feb 2026 446th janAkali 🇷🇺 597 99 401ms 3 days ago 447th michelebastione 🇮🇹 593 98 454ms 4 days ago 448th Shanethegamer 🇺🇸 593 121 148ms 13 Dec 2024 449th madex 🇩🇪 590 119 1,351ms 6 days ago 450th Solathian 587 46 98ms 8 days ago 451st retrohun 579 111 41ms 10 days ago 452nd albanian-laundromat 565 75 238ms 2 Mar 2026 453rd madex 🇩🇪 564 129 366ms 7 days ago 454th prestosilver 🇺🇸 563 105 408ms 2 days ago 455th Shanethegamer 🇺🇸 549 146 31ms 9 May 2025 456th JDiLenarda 🇫🇷 536 131 1,330ms 9 days ago 457th vang1ong7ang 517 161 171ms 39 hours ago 458th Shanethegamer 🇺🇸 516 50 4,026ms 8 May 2025 459th madex 🇩🇪 514 100 112ms 6 days ago 460th AstroOrbis 510 126 23ms 12 Aug 2025 461st madex 🇩🇪 487 53 952ms 7 days ago 462nd HumanoidCPU 484 120 401ms 4 days ago 463rd Shanethegamer 🇺🇸 473 85 6ms 13 Dec 2024 464th madex 🇩🇪 471 170 36ms 6 days ago 465th Shanethegamer 🇺🇸 450 107 8ms 9 May 2025 466th Msleizak 🇫🇷 427 84 302ms 4 days ago 467th madex 🇩🇪 416 78 91ms 6 days ago 468th muser-logiccpu 🇺🇦 368 88 72ms 2 Sep 2025 469th darrenks 🇺🇸 0 6 50ms 10 days ago 469th 2bular 0 6 45ms 10 days ago 469th Natanaelel 🇸🇪 0 6 48ms 10 days ago 469th plcc0 0 6 48ms 9 days ago 473rd kg583 🇺🇸 0 10 927ms 8 May 2025 474th namelessiw 0 14 335ms 25 Oct 2025 474th themoonisacheese 0 14 2,448ms 2 days ago 476th AlephSquirrel 0 31 8ms 3 Dec 2025 476th ovs-code 🇩🇪 0 31 9ms 3 Dec 2025 478th AlephSquirrel 0 42 5ms 3 Dec 2025 478th ovs-code 🇩🇪 0 42 6ms 7 Dec 2025 480th Shanethegamer 🇺🇸 0 52 168ms 7 Feb 2026 First Prev 401–480 of 491 Next Last