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 Shanethegamer 🇺🇸 640 65 257ms 13 Dec 2024 402nd madex 🇩🇪 628 87 12ms 4 days ago 403rd HumanoidCPU 618 133 162ms 7 days ago 404th Shanethegamer 🇺🇸 617 94 383ms 13 Dec 2024 405th KatieLG 🇬🇧 613 82 686ms 2 hours ago 406th Shanethegamer 🇺🇸 611 114 1,281ms 9 May 2025 407th Shanethegamer 🇺🇸 602 96 427ms 3 Jun 2025 408th kasarino 602 104 4ms 6 days ago 409th madex 🇩🇪 601 99 19ms 3 days ago 410th tomh1012 598 97 391ms 7 days ago 411th albanian-laundromat 598 98 135ms 23 Feb 2026 412th Shanethegamer 🇺🇸 593 121 148ms 13 Dec 2024 413th michelebastione 🇮🇹 592 98 454ms 33 hours ago 414th Solathian 587 46 98ms 5 days ago 415th madex 🇩🇪 585 119 1,351ms 3 days ago 416th madex 🇩🇪 563 129 366ms 4 days ago 417th JOrE20 559 100 42ms 15 Dec 2025 418th albanian-laundromat 554 75 238ms 2 Mar 2026 419th Shanethegamer 🇺🇸 549 146 31ms 9 May 2025 420th JDiLenarda 🇫🇷 532 131 1,330ms 6 days ago 421st Shanethegamer 🇺🇸 516 50 4,026ms 8 May 2025 422nd madex 🇩🇪 514 100 112ms 3 days ago 423rd retrohun 503 111 41ms 7 days ago 424th madex 🇩🇪 487 53 952ms 4 days ago 425th HumanoidCPU 483 120 401ms 40 hours ago 426th Shanethegamer 🇺🇸 482 85 6ms 13 Dec 2024 427th madex 🇩🇪 471 170 36ms 3 days ago 428th Shanethegamer 🇺🇸 450 107 8ms 9 May 2025 429th Msleizak 🇫🇷 444 84 302ms 38 hours ago 430th AstroOrbis 444 126 23ms 12 Aug 2025 431st madex 🇩🇪 416 78 91ms 3 days ago 432nd muser-logiccpu 🇺🇦 368 88 72ms 2 Sep 2025 433rd darrenks 🇺🇸 0 6 50ms 7 days ago 433rd 2bular 0 6 45ms 7 days ago 433rd Natanaelel 🇸🇪 0 6 48ms 7 days ago 433rd plcc0 0 6 48ms 6 days ago 437th kg583 🇺🇸 0 9 921ms 14 May 2025 438th namelessiw 0 13 335ms 25 Oct 2025 439th AlephSquirrel 0 20 8ms 3 Dec 2025 439th ovs-code 🇩🇪 0 20 9ms 3 Dec 2025 441st AlephSquirrel 0 27 5ms 3 Dec 2025 441st ovs-code 🇩🇪 0 27 6ms 7 Dec 2025 443rd ovs-code 🇩🇪 0 29 125ms 3 Dec 2025 444th Shanethegamer 🇺🇸 0 32 35ms 19 May 2025 445th KatieLG 🇬🇧 0 43 61ms 2 days ago 446th madex 🇩🇪 0 59 1,185ms 4 days ago 447th GolfingSuccess 🇬🇷 0 65 92ms 12 Jan 2026 448th Shanethegamer 🇺🇸 0 67 92ms 7 May 2025 449th GolfingSuccess 🇬🇷 0 71 26ms 12 Jan 2026 449th GolfingSuccess 🇬🇷 0 71 18ms 14 Jan 2026 451st dokutan 0 74 65ms 8 Feb 2026 452nd edsrzf 🇳🇿 0 108 1,839ms 21 May 2025 453rd btjones0 0 126 168ms 6 days ago 454th edsrzf 🇳🇿 0 136 4,806ms 19 May 2025 First Prev 401–454 of 454