Gray Code Decoder in Python 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 1st khvdm 1,000 60 144ms 13 Jan 2025 1st Seek64 🇩🇪 1,000 60 125ms 13 days ago 3rd pardouin 🇫🇷 968 62 192ms 14 Feb 2026 3rd Steffan153 🇫🇮 968 62 200ms 21 Feb 2026 5th kg583 🇺🇸 952 63 904ms 1 Dec 2024 5th hallvabo 🇳🇴 952 63 150ms 30 Dec 2024 5th fuzzylojik-golf 🇺🇸 952 63 142ms 14 days ago 5th plcc0 952 63 19ms 12 days ago 5th ndren 952 63 19ms 11 days ago 5th CornerMercury 🇬🇧 952 63 20ms 10 days ago 11th lifthrasiir 🇰🇷 938 64 182ms 11 Dec 2024 11th emgordon154 938 64 19ms 9 May 2025 11th anter69 🇭🇺 938 64 19ms 4 Feb 2026 11th albanian-laundromat 938 64 18ms 22 Feb 2026 11th HumanoidCPU 938 64 256ms 13 days ago 11th snoozingnewt 🇨🇦 938 64 19ms 3 days ago 17th dokutan 909 66 18ms 18 Aug 2025 18th 4atj 870 69 1,159ms 21 May 2025 19th btnlq 857 70 193ms 4 Dec 2024 19th error256 857 70 133ms 15 Jan 2026 21st ovs-code 🇩🇪 845 71 134ms 13 days ago 22nd aksyristos 833 72 247ms 26 days ago 22nd blaztoma 🇱🇹 833 72 151ms 13 days ago 22nd Emutis 🇱🇹 833 72 121ms 13 days ago 22nd zacjl 833 72 131ms 11 days ago 22nd bizy-coder 833 72 125ms 4 days ago 27th lukegustafson 🇺🇸 811 74 189ms 9 Mar 2026 28th Natanaelel 🇸🇪 800 75 19ms 11 May 2025 28th commandz0 🇺🇸 800 75 1,210ms 27 Aug 2025 28th GolfingSuccess 🇬🇷 800 75 19ms 11 Jan 2026 28th madex 🇩🇪 800 75 26ms 19 days ago 28th CaedenHarper 🇨🇦 800 75 149ms 16 days ago 28th edsrzf 🇳🇿 800 75 17ms 12 days ago 28th zgialor-lab 800 75 25ms 12 days ago 28th DialFrost 🇸🇬 800 75 25ms 8 days ago 28th sean-niemann 🇺🇸 800 75 178ms 7 days ago 28th stefangimmillaro 800 75 24ms 2 days ago 38th AlephSquirrel 789 76 39ms 3 Dec 2025 38th MeWhenI 🇻🇦 789 76 586ms 21 days ago 38th duckyluuk 🇳🇱 789 76 139ms 11 days ago 41st Shanethegamer 🇺🇸 779 77 19ms 13 Dec 2024 41st addmai 779 77 20ms 24 Jul 2025 41st hiichbindermax 779 77 17ms 17 Aug 2025 41st 5cw 🇺🇸 779 77 18ms 22 Aug 2025 41st davecame 779 77 135ms 25 Sep 2025 41st SirBogman 🇺🇸 779 77 232ms 13 Oct 2025 41st jtaxen 779 77 19ms 16 Oct 2025 41st Matter1024 🇮🇳 779 77 17ms 12 Feb 2026 41st KasperKivimaeki 🇫🇮 779 77 564ms 22 days ago 41st StefanHabel 🇨🇦 779 77 1,217ms 13 days ago 41st ahmetdemirag 🇨🇾 779 77 18ms 13 days ago 41st tomh1012 779 77 17ms 13 days ago 41st qpwoeirut 779 77 19ms 12 days ago 41st btjones0 779 77 19ms 12 days ago 41st ComradeSquirrel 779 77 18ms 12 days ago 41st bzijlema 🇳🇱 779 77 18ms 12 days ago 41st Lv0Sys 🇵🇱 779 77 18ms 11 days ago 41st LostSyntax21 🇬🇧 779 77 18ms 8 days ago 41st scpchicken 🇵🇼 779 77 18ms 5 days ago 41st Andrey2001 779 77 18ms 5 days ago 41st guilhem-roy 🇫🇷 779 77 19ms 5 days ago 41st jameswmccarty 779 77 20ms 4 days ago 41st mantaslu 🇱🇹 779 77 18ms 3 days ago 41st firegene 🇮🇪 779 77 18ms 3 days ago 41st Pyroan 779 77 19ms 6 hours ago 41st retrohun 779 77 174ms 3 hours ago 67th solisolu 769 78 40ms 10 Nov 2025 68th BREMAUCY 🇫🇷 759 79 18ms 13 days ago 68th mishak-sys 759 79 411ms 11 days ago 68th KatieLG 🇬🇧 759 79 19ms 6 days ago 68th ZakkkkAttackkkk 🇵🇭 759 79 52ms 7 hours ago 72nd jusaka 750 80 18ms 4 days ago 73rd Aquateraneal 🇺🇸 741 81 19ms 11 days ago 73rd luuumine 🇫🇷 741 81 16ms 10 days ago 75th bricknellj 732 82 17ms 30 Jan 2025 76th msbranicky 723 83 18ms 10 days ago 77th JOrE20 600 100 42ms 15 Dec 2025 78th AstroOrbis 476 126 23ms 12 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