Gray Code Decoder in all languages in chars. 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 Chars Time Submitted 382nd Andrey2001 729 77 19ms 13 days ago 382nd guilhem-roy 🇫🇷 729 77 17ms 12 days ago 382nd jameswmccarty 729 77 19ms 11 days ago 382nd mantaslu 🇱🇹 729 77 18ms 11 days ago 382nd firegene 🇮🇪 729 77 18ms 11 days ago 382nd Pyroan 729 77 19ms 7 days ago 382nd retrohun 729 77 183ms 7 days ago 382nd klixel 🇨🇦 729 77 19ms 5 days ago 382nd flekAI 729 77 147ms 2 days ago 410th dokutan 728 101 361ms 3 days ago 411th MeWhenI 🇻🇦 725 87 4ms 13 days ago 412th MeWhenI 🇻🇦 723 81 426ms 14 days ago 413th plcc0 722 18 9ms 16 days ago 414th Matter1024 🇮🇳 722 83 163ms 9 days ago 415th madex 🇩🇪 721 50 896ms 18 days ago 416th solisolu 720 78 41ms 10 Nov 2025 416th Alex-x90 🇺🇸 720 78 19ms 2 days ago 418th edsrzf 🇳🇿 718 94 459ms 20 May 2025 419th Andriamanitra 🇫🇮 716 45 37ms 20 days ago 420th BREMAUCY 🇫🇷 711 79 19ms 21 days ago 420th mishak-sys 711 79 418ms 19 days ago 420th KatieLG 🇬🇧 711 79 18ms 13 days ago 420th ZakkkkAttackkkk 🇵🇭 711 79 45ms 7 days ago 424th Shanethegamer 🇺🇸 711 80 5ms 3 Jun 2025 425th madex 🇩🇪 711 94 99ms 16 days ago 426th elgan65536 🇺🇸 711 117 156ms 15 days ago 427th madex 🇩🇪 710 84 359ms 16 days ago 428th Shanethegamer 🇺🇸 708 139 328ms 13 Dec 2024 429th albanian-laundromat 🇺🇸 707 61 13ms 4 Mar 2026 430th emgordon154 706 231 1,663ms 17 days ago 431st aadenboy 🇺🇸 703 81 5ms 15 days ago 432nd Matter1024 🇮🇳 700 46 38ms 21 days ago 433rd madex 🇩🇪 697 39 9ms 16 days ago 434th Andrey-Plotnikov 696 62 39ms 12 Jan 2025 434th XenThe 🇬🇧 696 62 12ms 15 Jul 2025 434th JOrE20 696 62 31ms 27 Feb 2026 434th Protothor 696 62 13ms 17 days ago 434th madeforlosers 696 62 36ms 13 days ago 434th dokutan 696 62 24ms 3 days ago 440th Aquateraneal 🇺🇸 693 81 22ms 18 days ago 440th luuumine 🇫🇷 693 81 17ms 18 days ago 442nd albanian-laundromat 🇺🇸 690 95 114ms 6 Jan 2026 443rd CLOStrophobic 🇮🇹 690 104 23ms 18 Jan 2025 444th albanian-laundromat 🇺🇸 689 75 119ms 5 Jan 2026 445th dokutan 688 57 1,275ms 3 days ago 446th KatieLG 🇬🇧 685 47 40ms 13 days ago 447th zakariamouhid 685 63 12ms 4 hours ago 448th bricknellj 685 82 18ms 30 Jan 2025 448th cros107 🇦🇺 685 82 1,060ms 5 days ago 450th albanian-laundromat 🇺🇸 684 19 4ms 13 Feb 2026 451st DialFrost 🇸🇬 682 48 54ms 16 Dec 2025 451st retrohun 682 48 2,663ms 7 days ago 453rd Arkadios200 682 98 111ms 5 days ago 454th Shanethegamer 🇺🇸 680 76 125ms 13 Dec 2024 455th msbranicky 677 83 18ms 18 days ago 456th Jonson26 674 109 350ms 4 days ago 457th CaedenHarper 🇨🇦 673 87 380ms 20 days ago 458th madex 🇩🇪 672 75 465ms 18 days ago 459th AlephSquirrel 671 107 23ms 14 May 2025 460th Shanethegamer 🇺🇸 671 124 147ms 3 Jun 2025 461st madex 🇩🇪 668 101 141ms 16 days ago 462nd KatieLG 🇬🇧 664 65 12ms 13 days ago 462nd flekAI 664 65 12ms 47 hours ago 464th AlephSquirrel 663 76 427ms 3 Dec 2025 465th madex 🇩🇪 661 79 29ms 16 days ago 466th madex 🇩🇪 658 121 8ms 16 days ago 467th flekAI 655 77 548ms 2 days ago 468th albanian-laundromat 🇺🇸 653 80 28ms 20 days ago 469th flekAI 653 84 7ms 46 hours ago 470th Shanethegamer 🇺🇸 648 75 67ms 7 May 2025 471st Shanethegamer 🇺🇸 646 65 254ms 13 Dec 2024 472nd Yax42 🇫🇷 635 68 13ms 21 days ago 473rd dokutan 632 74 160ms 3 days ago 474th madex 🇩🇪 631 87 14ms 18 days ago 475th GolfingSuccess 🇬🇷 626 137 91ms 19 days ago 476th HumanoidCPU 625 133 162ms 20 days ago 477th Shanethegamer 🇺🇸 623 94 371ms 13 Dec 2024 478th Shanethegamer 🇺🇸 622 96 427ms 3 Jun 2025 479th IISResetMe 621 58 308ms 18 days ago 480th Shanethegamer 🇺🇸 619 114 1,281ms 9 May 2025 First Prev 401–480 of 579 Next Last