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 161ms 13 Jan 2025 1st Seek64 🇩🇪 1,000 60 125ms 24 days ago 3rd pardouin 🇫🇷 968 62 202ms 14 Feb 2026 3rd Steffan153 🇫🇮 968 62 216ms 21 Feb 2026 5th kg583 🇺🇸 952 63 890ms 1 Dec 2024 5th hallvabo 🇳🇴 952 63 132ms 30 Dec 2024 5th fuzzylojik-golf 🇺🇸 952 63 152ms 24 days ago 5th plcc0 952 63 28ms 23 days ago 5th ndren 952 63 21ms 22 days ago 5th CornerMercury 🇬🇧 952 63 20ms 21 days ago 5th Mukundan314 952 63 122ms 5 hours ago 12th lifthrasiir 🇰🇷 938 64 193ms 11 Dec 2024 12th emgordon154 938 64 18ms 9 May 2025 12th anter69 🇭🇺 938 64 23ms 4 Feb 2026 12th albanian-laundromat 🇺🇸 938 64 20ms 22 Feb 2026 12th HumanoidCPU 938 64 284ms 23 days ago 12th snoozingnewt 🇨🇦 938 64 19ms 14 days ago 12th madeforlosers 938 64 21ms 10 days ago 19th dokutan 909 66 22ms 18 Aug 2025 20th 4atj 870 69 1,250ms 21 May 2025 21st btnlq 857 70 202ms 4 Dec 2024 21st error256 857 70 142ms 15 Jan 2026 23rd ovs-code 🇩🇪 845 71 124ms 24 days ago 24th aksyristos 833 72 278ms 12 Mar 2026 24th blaztoma 🇱🇹 833 72 158ms 24 days ago 24th Emutis 🇱🇹 833 72 130ms 24 days ago 24th zacjl 833 72 137ms 22 days ago 24th bizy-coder 833 72 129ms 15 days ago 29th lukegustafson 🇺🇸 811 74 194ms 9 Mar 2026 30th Natanaelel 🇸🇪 800 75 20ms 11 May 2025 30th commandz0 🇺🇸 800 75 1,254ms 27 Aug 2025 30th GolfingSuccess 🇬🇷 800 75 18ms 11 Jan 2026 30th madex 🇩🇪 800 75 26ms 18 Mar 2026 30th CaedenHarper 🇨🇦 800 75 158ms 26 days ago 30th edsrzf 🇳🇿 800 75 18ms 23 days ago 30th zgialor-lab 800 75 24ms 23 days ago 30th DialFrost 🇸🇬 800 75 28ms 19 days ago 30th sean-niemann 🇺🇸 800 75 181ms 18 days ago 30th stefangimmillaro 800 75 26ms 13 days ago 30th FortuiteMan 🇫🇷 800 75 23ms 8 days ago 30th jusaka 800 75 19ms 6 days ago 42nd AlephSquirrel 789 76 38ms 3 Dec 2025 42nd MeWhenI 🇻🇦 789 76 605ms 16 Mar 2026 42nd duckyluuk 🇳🇱 789 76 120ms 22 days ago 45th Shanethegamer 🇺🇸 779 77 18ms 13 Dec 2024 45th addmai 779 77 20ms 24 Jul 2025 45th hiichbindermax 779 77 18ms 17 Aug 2025 45th 5cw 🇺🇸 779 77 20ms 22 Aug 2025 45th davecame 779 77 142ms 25 Sep 2025 45th SirBogman 🇺🇸 779 77 244ms 13 Oct 2025 45th jtaxen 779 77 27ms 16 Oct 2025 45th Matter1024 🇮🇳 779 77 19ms 12 Feb 2026 45th KasperKivimaeki 🇫🇮 779 77 589ms 16 Mar 2026 45th StefanHabel 🇨🇦 779 77 606ms 24 days ago 45th ahmetdemirag 🇨🇾 779 77 18ms 24 days ago 45th tomh1012 779 77 19ms 24 days ago 45th qpwoeirut 779 77 19ms 23 days ago 45th btjones0 779 77 18ms 23 days ago 45th ComradeSquirrel 779 77 18ms 23 days ago 45th bzijlema 🇳🇱 779 77 19ms 23 days ago 45th Lv0Sys 🇵🇱 779 77 20ms 22 days ago 45th LostSyntax21 🇬🇧 779 77 18ms 19 days ago 45th scpchicken 🇵🇼 779 77 18ms 16 days ago 45th Andrey2001 779 77 19ms 16 days ago 45th guilhem-roy 🇫🇷 779 77 17ms 16 days ago 45th jameswmccarty 779 77 19ms 14 days ago 45th mantaslu 🇱🇹 779 77 18ms 14 days ago 45th firegene 🇮🇪 779 77 18ms 14 days ago 45th Pyroan 779 77 19ms 11 days ago 45th retrohun 779 77 183ms 10 days ago 45th klixel 🇨🇦 779 77 19ms 8 days ago 45th flekAI 779 77 147ms 5 days ago 45th FoxInTheClouds 779 77 19ms 2 days ago 74th solisolu 769 78 41ms 10 Nov 2025 74th Alex-x90 🇺🇸 769 78 19ms 5 days ago 76th BREMAUCY 🇫🇷 759 79 19ms 24 days ago 76th mishak-sys 759 79 418ms 22 days ago 76th KatieLG 🇬🇧 759 79 18ms 16 days ago 76th ZakkkkAttackkkk 🇵🇭 759 79 45ms 11 days ago 76th lelbal 759 79 19ms 2 days ago 1–80 of 92 Next Last