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 CLOStrophobic 🇮🇹 690 104 21ms 18 Jan 2025 402nd albanian-laundromat 685 75 108ms 5 Jan 2026 403rd GolfingSuccess 🇬🇷 685 137 94ms 6 days ago 404th albanian-laundromat 684 19 4ms 13 Feb 2026 405th albanian-laundromat 684 95 114ms 6 Jan 2026 406th KatieLG 🇬🇧 682 47 40ms 19 hours ago 407th Shanethegamer 🇺🇸 676 76 129ms 13 Dec 2024 408th DialFrost 🇸🇬 675 48 54ms 16 Dec 2025 409th UnderKoen 🇳🇱 675 139 1,178ms 7 days ago 410th AlephSquirrel 671 107 20ms 14 May 2025 411th CaedenHarper 🇨🇦 668 87 430ms 7 days ago 412th Shanethegamer 🇺🇸 668 124 147ms 3 Jun 2025 413th madex 🇩🇪 662 101 141ms 4 days ago 414th KatieLG 🇬🇧 661 65 11ms 19 hours ago 415th madex 🇩🇪 661 79 29ms 4 days ago 416th KatieLG 🇬🇧 655 82 686ms 19 hours ago 417th albanian-laundromat 653 80 28ms 7 days ago 418th sean-niemann 🇺🇸 652 90 7ms 10 May 2025 419th madex 🇩🇪 649 121 8ms 4 days ago 420th Shanethegamer 🇺🇸 648 75 71ms 7 May 2025 421st JOrE20 641 100 42ms 15 Dec 2025 422nd Yax42 🇫🇷 632 68 12ms 8 days ago 423rd madex 🇩🇪 628 87 12ms 5 days ago 424th Shanethegamer 🇺🇸 623 68 257ms 13 Dec 2024 425th HumanoidCPU 623 133 162ms 7 days ago 426th IISResetMe 618 58 308ms 5 days ago 427th Shanethegamer 🇺🇸 618 94 383ms 13 Dec 2024 428th Shanethegamer 🇺🇸 615 96 427ms 3 Jun 2025 429th Shanethegamer 🇺🇸 615 114 1,281ms 9 May 2025 430th madex 🇩🇪 605 99 19ms 4 days ago 431st kasarino 602 104 4ms 7 days ago 432nd tomh1012 599 97 378ms 8 days ago 433rd albanian-laundromat 598 98 135ms 23 Feb 2026 434th janAkali 🇷🇺 597 99 401ms 13 hours ago 435th michelebastione 🇮🇹 593 98 454ms 2 days ago 436th Shanethegamer 🇺🇸 593 121 148ms 13 Dec 2024 437th madex 🇩🇪 590 119 1,351ms 4 days ago 438th Solathian 587 46 98ms 6 days ago 439th retrohun 578 111 41ms 8 days ago 440th albanian-laundromat 565 75 238ms 2 Mar 2026 441st prestosilver 🇺🇸 563 105 408ms 6 hours ago 442nd madex 🇩🇪 563 129 366ms 5 days ago 443rd Shanethegamer 🇺🇸 549 146 31ms 9 May 2025 444th JDiLenarda 🇫🇷 536 131 1,330ms 7 days ago 445th Shanethegamer 🇺🇸 516 50 4,026ms 8 May 2025 446th madex 🇩🇪 514 100 112ms 4 days ago 447th AstroOrbis 509 126 23ms 12 Aug 2025 448th madex 🇩🇪 487 53 952ms 5 days ago 449th HumanoidCPU 484 120 401ms 2 days ago 450th Shanethegamer 🇺🇸 482 85 6ms 13 Dec 2024 451st madex 🇩🇪 471 170 36ms 4 days ago 452nd Shanethegamer 🇺🇸 450 107 8ms 9 May 2025 453rd vang1ong7ang 438 189 209ms 7 hours ago 454th Msleizak 🇫🇷 427 84 302ms 2 days ago 455th madex 🇩🇪 416 78 91ms 4 days ago 456th muser-logiccpu 🇺🇦 368 88 72ms 2 Sep 2025 457th darrenks 🇺🇸 0 6 50ms 8 days ago 457th 2bular 0 6 45ms 7 days ago 457th Natanaelel 🇸🇪 0 6 48ms 7 days ago 457th plcc0 0 6 48ms 7 days ago 461st kg583 🇺🇸 0 10 927ms 8 May 2025 462nd namelessiw 0 14 335ms 25 Oct 2025 462nd themoonisacheese 0 14 2,448ms 6 hours ago 464th AlephSquirrel 0 31 8ms 3 Dec 2025 464th ovs-code 🇩🇪 0 31 9ms 3 Dec 2025 466th AlephSquirrel 0 42 5ms 3 Dec 2025 466th ovs-code 🇩🇪 0 42 6ms 7 Dec 2025 468th Shanethegamer 🇺🇸 0 52 168ms 7 Feb 2026 469th ovs-code 🇩🇪 0 53 125ms 30 May 2025 470th madex 🇩🇪 0 59 1,185ms 5 days ago 471st GolfingSuccess 🇬🇷 0 65 92ms 12 Jan 2026 472nd Shanethegamer 🇺🇸 0 67 92ms 7 May 2025 473rd GolfingSuccess 🇬🇷 0 71 26ms 12 Jan 2026 473rd GolfingSuccess 🇬🇷 0 71 18ms 14 Jan 2026 475th KatieLG 🇬🇧 0 81 67ms 3 days ago 476th dokutan 0 90 65ms 8 Feb 2026 477th edsrzf 🇳🇿 0 108 1,839ms 21 May 2025 478th btjones0 0 126 168ms 7 days ago 479th edsrzf 🇳🇿 0 136 4,806ms 19 May 2025 First Prev 401–479 of 479