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 elgan65536 🇺🇸 711 117 156ms 8 days ago 402nd BREMAUCY 🇫🇷 709 79 18ms 13 days ago 402nd mishak-sys 709 79 411ms 11 days ago 402nd KatieLG 🇬🇧 709 79 19ms 5 days ago 402nd ZakkkkAttackkkk 🇵🇭 709 79 52ms 5 hours ago 406th Jacob385 709 103 386ms 9 days ago 407th emgordon154 706 231 1,484ms 9 days ago 408th albanian-laundromat 705 61 13ms 4 Mar 2026 409th Shanethegamer 🇺🇸 703 80 5ms 3 Jun 2025 410th madex 🇩🇪 703 84 359ms 9 days ago 411th madex 🇩🇪 703 94 99ms 9 days ago 412th Shanethegamer 🇺🇸 702 139 309ms 13 Dec 2024 413th jusaka 700 80 18ms 4 days ago 414th Matter1024 🇮🇳 698 46 38ms 13 days ago 415th aadenboy 🇺🇸 695 81 5ms 7 days ago 416th Andrey-Plotnikov 693 62 34ms 12 Jan 2025 416th XenThe 🇬🇧 693 62 13ms 15 Jul 2025 416th JOrE20 693 62 31ms 27 Feb 2026 416th Protothor 693 62 13ms 10 days ago 416th madeforlosers 693 62 41ms 5 days ago 421st madex 🇩🇪 692 39 9ms 9 days ago 422nd Aquateraneal 🇺🇸 692 81 19ms 10 days ago 422nd luuumine 🇫🇷 692 81 16ms 10 days ago 424th albanian-laundromat 690 95 114ms 6 Jan 2026 425th CLOStrophobic 🇮🇹 690 104 23ms 18 Jan 2025 426th albanian-laundromat 685 75 119ms 5 Jan 2026 427th albanian-laundromat 684 19 4ms 13 Feb 2026 428th KatieLG 🇬🇧 683 47 40ms 5 days ago 429th bricknellj 683 82 17ms 30 Jan 2025 430th DialFrost 🇸🇬 679 48 54ms 16 Dec 2025 430th retrohun 679 48 2,812ms 107 mins ago 432nd Shanethegamer 🇺🇸 676 76 125ms 13 Dec 2024 433rd msbranicky 675 83 18ms 10 days ago 434th madex 🇩🇪 671 75 439ms 10 days ago 435th AlephSquirrel 671 107 29ms 14 May 2025 436th Shanethegamer 🇺🇸 671 124 147ms 3 Jun 2025 437th CaedenHarper 🇨🇦 668 87 380ms 13 days ago 438th AlephSquirrel 662 76 433ms 3 Dec 2025 439th madex 🇩🇪 662 101 141ms 9 days ago 440th KatieLG 🇬🇧 661 65 12ms 5 days ago 441st madex 🇩🇪 661 79 29ms 9 days ago 442nd albanian-laundromat 653 80 28ms 12 days ago 443rd sean-niemann 🇺🇸 652 90 7ms 10 May 2025 444th madex 🇩🇪 649 121 8ms 9 days ago 445th Shanethegamer 🇺🇸 648 75 67ms 7 May 2025 446th Shanethegamer 🇺🇸 640 65 257ms 13 Dec 2024 447th Yax42 🇫🇷 632 68 13ms 13 days ago 448th madex 🇩🇪 628 87 12ms 10 days ago 449th GolfingSuccess 🇬🇷 626 137 94ms 11 days ago 450th HumanoidCPU 625 133 162ms 12 days ago 451st IISResetMe 618 58 308ms 10 days ago 452nd Shanethegamer 🇺🇸 618 94 371ms 13 Dec 2024 453rd UnderKoen 🇳🇱 617 139 1,172ms 12 days ago 454th Shanethegamer 🇺🇸 615 96 427ms 3 Jun 2025 455th Shanethegamer 🇺🇸 615 114 1,281ms 9 May 2025 456th KatieLG 🇬🇧 614 82 553ms 5 days ago 457th brian124634 609 103 4ms 4 days ago 458th madex 🇩🇪 605 99 19ms 9 days ago 459th kasarino 603 104 3ms 12 days ago 460th tomh1012 599 97 378ms 13 days ago 461st albanian-laundromat 598 98 135ms 23 Feb 2026 462nd janAkali 🇷🇺 597 99 401ms 5 days ago 463rd michelebastione 🇮🇹 593 98 454ms 7 days ago 464th Shanethegamer 🇺🇸 593 121 175ms 13 Dec 2024 465th madex 🇩🇪 590 119 1,267ms 9 days ago 466th Solathian 587 46 77ms 11 days ago 467th madex 🇩🇪 566 129 366ms 10 days ago 468th prestosilver 🇺🇸 563 105 408ms 5 days ago 469th JOrE20 560 100 42ms 15 Dec 2025 470th albanian-laundromat 554 75 238ms 2 Mar 2026 471st Shanethegamer 🇺🇸 549 146 31ms 9 May 2025 472nd JDiLenarda 🇫🇷 536 131 1,330ms 12 days ago 473rd Shanethegamer 🇺🇸 521 50 4,026ms 8 May 2025 474th vang1ong7ang 517 161 171ms 4 days ago 475th madex 🇩🇪 514 100 133ms 9 days ago 476th madex 🇩🇪 492 53 733ms 10 days ago 477th HumanoidCPU 484 120 401ms 7 days ago 478th Shanethegamer 🇺🇸 473 85 6ms 13 Dec 2024 479th madex 🇩🇪 471 170 33ms 9 days ago 480th Shanethegamer 🇺🇸 450 107 8ms 9 May 2025 First Prev 401–480 of 507 Next Last