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 401st MeWhenI 🇻🇦 718 81 426ms 10 days ago 402nd madex 🇩🇪 717 50 896ms 14 days ago 403rd Matter1024 🇮🇳 717 83 163ms 4 days ago 404th Andriamanitra 🇫🇮 713 45 37ms 16 days ago 405th edsrzf 🇳🇿 711 94 459ms 20 May 2025 406th BREMAUCY 🇫🇷 710 79 19ms 17 days ago 406th mishak-sys 710 79 418ms 14 days ago 406th KatieLG 🇬🇧 710 79 18ms 9 days ago 406th ZakkkkAttackkkk 🇵🇭 710 79 45ms 3 days ago 410th Jacob385 710 103 386ms 12 days ago 411th elgan65536 🇺🇸 708 117 156ms 11 days ago 412th madex 🇩🇪 707 84 359ms 12 days ago 413th madex 🇩🇪 707 94 99ms 12 days ago 414th emgordon154 706 231 1,484ms 13 days ago 415th albanian-laundromat 🇺🇸 705 61 13ms 4 Mar 2026 416th Shanethegamer 🇺🇸 703 80 5ms 3 Jun 2025 417th Shanethegamer 🇺🇸 702 139 328ms 13 Dec 2024 418th jusaka 701 80 18ms 7 days ago 419th Matter1024 🇮🇳 698 46 38ms 16 days ago 420th aadenboy 🇺🇸 695 81 5ms 10 days ago 421st Andrey-Plotnikov 693 62 39ms 12 Jan 2025 421st XenThe 🇬🇧 693 62 12ms 15 Jul 2025 421st JOrE20 693 62 31ms 27 Feb 2026 421st Protothor 693 62 13ms 13 days ago 421st madeforlosers 693 62 38ms 8 days ago 426th Aquateraneal 🇺🇸 693 81 22ms 14 days ago 426th luuumine 🇫🇷 693 81 17ms 13 days ago 428th madex 🇩🇪 692 39 9ms 12 days ago 429th albanian-laundromat 🇺🇸 690 95 114ms 6 Jan 2026 430th CLOStrophobic 🇮🇹 690 104 23ms 18 Jan 2025 431st albanian-laundromat 🇺🇸 685 75 119ms 5 Jan 2026 432nd albanian-laundromat 🇺🇸 684 19 4ms 13 Feb 2026 433rd bricknellj 684 82 18ms 30 Jan 2025 433rd cros107 🇦🇺 684 82 1,060ms 23 hours ago 435th KatieLG 🇬🇧 683 47 40ms 9 days ago 436th DialFrost 🇸🇬 679 48 54ms 16 Dec 2025 436th retrohun 679 48 2,663ms 3 days ago 438th Arkadios200 678 98 111ms 18 hours ago 439th Shanethegamer 🇺🇸 676 76 125ms 13 Dec 2024 440th msbranicky 676 83 18ms 13 days ago 441st madex 🇩🇪 671 75 465ms 14 days ago 442nd AlephSquirrel 671 107 23ms 14 May 2025 443rd Jonson26 671 109 350ms 28 mins ago 444th CaedenHarper 🇨🇦 668 87 380ms 16 days ago 445th Shanethegamer 🇺🇸 668 124 147ms 3 Jun 2025 446th AlephSquirrel 662 76 427ms 3 Dec 2025 447th madex 🇩🇪 662 101 141ms 12 days ago 448th KatieLG 🇬🇧 661 65 12ms 9 days ago 449th madex 🇩🇪 661 79 29ms 12 days ago 450th albanian-laundromat 🇺🇸 653 80 28ms 16 days ago 451st sean-niemann 🇺🇸 652 90 7ms 10 May 2025 452nd madex 🇩🇪 649 121 8ms 12 days ago 453rd Shanethegamer 🇺🇸 648 75 67ms 7 May 2025 454th Shanethegamer 🇺🇸 640 65 257ms 13 Dec 2024 455th Yax42 🇫🇷 632 68 13ms 16 days ago 456th madex 🇩🇪 628 87 11ms 14 days ago 457th GolfingSuccess 🇬🇷 626 137 94ms 15 days ago 458th HumanoidCPU 623 133 162ms 16 days ago 459th Shanethegamer 🇺🇸 619 96 427ms 3 Jun 2025 460th IISResetMe 618 58 308ms 14 days ago 461st Shanethegamer 🇺🇸 618 94 371ms 13 Dec 2024 462nd UnderKoen 🇳🇱 617 139 1,172ms 15 days ago 463rd Shanethegamer 🇺🇸 615 114 1,281ms 9 May 2025 464th KatieLG 🇬🇧 614 82 424ms 9 days ago 465th brian124634 609 103 4ms 8 days ago 466th madex 🇩🇪 605 99 19ms 12 days ago 467th kasarino 603 104 3ms 15 days ago 468th janAkali 🇷🇺 600 99 401ms 9 days ago 469th tomh1012 599 97 378ms 17 days ago 470th albanian-laundromat 🇺🇸 598 98 135ms 23 Feb 2026 471st michelebastione 🇮🇹 593 98 443ms 10 days ago 472nd Shanethegamer 🇺🇸 593 121 166ms 13 Dec 2024 473rd madex 🇩🇪 590 119 1,267ms 12 days ago 474th Solathian 587 46 77ms 14 days ago 475th Mikey-Beep 🇬🇧 567 99 25ms 47 hours ago 476th madex 🇩🇪 567 129 366ms 14 days ago 477th prestosilver 🇺🇸 566 105 381ms 8 days ago 478th JOrE20 561 100 46ms 15 Dec 2025 479th albanian-laundromat 🇺🇸 554 75 238ms 2 Mar 2026 480th Shanethegamer 🇺🇸 549 146 31ms 9 May 2025 First Prev 401–480 of 517 Next Last