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 7 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 8 days ago 5th plcc0 952 63 19ms 6 days ago 5th ndren 952 63 19ms 5 days ago 5th CornerMercury 🇬🇧 952 63 21ms 4 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 7 days ago 16th dokutan 909 66 19ms 18 Aug 2025 17th 4atj 870 69 1,159ms 21 May 2025 18th btnlq 857 70 193ms 4 Dec 2024 18th error256 857 70 133ms 15 Jan 2026 20th ovs-code 🇩🇪 845 71 134ms 7 days ago 21st aksyristos 833 72 247ms 20 days ago 21st blaztoma 🇱🇹 833 72 151ms 7 days ago 21st Emutis 🇱🇹 833 72 121ms 7 days ago 21st zacjl 833 72 131ms 5 days ago 25th lukegustafson 🇺🇸 811 74 189ms 22 days ago 26th Natanaelel 🇸🇪 800 75 19ms 11 May 2025 26th commandz0 🇺🇸 800 75 1,210ms 27 Aug 2025 26th GolfingSuccess 🇬🇷 800 75 19ms 11 Jan 2026 26th madex 🇩🇪 800 75 26ms 13 days ago 26th CaedenHarper 🇨🇦 800 75 149ms 10 days ago 26th edsrzf 🇳🇿 800 75 17ms 6 days ago 26th zgialor-lab 800 75 25ms 6 days ago 26th DialFrost 🇸🇬 800 75 25ms 2 days ago 26th sean-niemann 🇺🇸 800 75 178ms 39 hours ago 35th AlephSquirrel 789 76 39ms 3 Dec 2025 35th MeWhenI 🇻🇦 789 76 586ms 15 days ago 35th duckyluuk 🇳🇱 789 76 128ms 5 days ago 38th Shanethegamer 🇺🇸 779 77 19ms 13 Dec 2024 38th addmai 779 77 20ms 24 Jul 2025 38th hiichbindermax 779 77 17ms 17 Aug 2025 38th 5cw 🇺🇸 779 77 18ms 22 Aug 2025 38th davecame 779 77 135ms 25 Sep 2025 38th SirBogman 🇺🇸 779 77 232ms 13 Oct 2025 38th jtaxen 779 77 19ms 16 Oct 2025 38th Matter1024 🇮🇳 779 77 17ms 12 Feb 2026 38th KasperKivimaeki 🇫🇮 779 77 564ms 16 days ago 38th StefanHabel 🇨🇦 779 77 1,217ms 7 days ago 38th ahmetdemirag 🇨🇾 779 77 18ms 7 days ago 38th tomh1012 779 77 17ms 7 days ago 38th qpwoeirut 779 77 19ms 6 days ago 38th btjones0 779 77 19ms 6 days ago 38th ComradeSquirrel 779 77 18ms 6 days ago 38th bzijlema 🇳🇱 779 77 19ms 6 days ago 38th Lv0Sys 🇵🇱 779 77 18ms 5 days ago 38th stefangimmillaro 779 77 136ms 2 days ago 38th LostSyntax21 🇬🇧 779 77 18ms 2 days ago 57th jameswmccarty 769 78 19ms 29 Mar 2025 57th solisolu 769 78 20ms 10 Nov 2025 59th BREMAUCY 🇫🇷 759 79 18ms 7 days ago 59th Andrey2001 759 79 18ms 7 days ago 59th mishak-sys 759 79 411ms 5 days ago 59th firegene 🇮🇪 759 79 18ms 10 hours ago 59th KatieLG 🇬🇧 759 79 19ms 32 mins ago 64th Aquateraneal 🇺🇸 741 81 19ms 5 days ago 64th luuumine 🇫🇷 741 81 16ms 4 days ago 66th bricknellj 732 82 17ms 30 Jan 2025 66th scpchicken 🇵🇼 732 82 402ms 8 days ago 68th msbranicky 723 83 18ms 4 days ago 69th JOrE20 600 100 42ms 15 Dec 2025 70th retrohun 541 111 41ms 7 days ago 71st AstroOrbis 476 126 23ms 12 Aug 2025 1–71 of 71