Gray Code Encoder in all languages in bytes. 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 Bytes Time Submitted 641st flekAI 406 146 473ms 2 days ago 642nd flekAI 403 141 1,463ms 2 days ago 643rd HumanoidCPU 374 200 421ms 19 days ago 644th flekAI 332 207 45ms 2 days ago 645th flekAI 323 308 7ms 2 days ago 646th Msleizak 🇫🇷 319 88 412ms 16 days ago 647th flekAI 315 216 380ms 2 days ago 648th flekAI 312 282 31ms 2 days ago 649th kasarino 307 175 56ms 2 days ago 650th flekAI 289 97 446ms 2 days ago 651st flekAI 288 227 7ms 2 days ago 652nd flekAI 270 234 116ms 2 days ago 653rd flekAI 259 155 83ms 2 days ago 654th flekAI 250 279 4ms 2 days ago 655th flekAI 244 315 17ms 2 days ago 656th flekAI 229 327 453ms 2 days ago 657th flekAI 221 161 5ms 2 days ago 658th flekAI 213 338 54ms 2 days ago 659th JOrE20 196 381 2,566ms 29 Dec 2025 660th flekAI 177 287 198ms 2 days ago 661st CaedenHarper 🇨🇦 61 853 550ms 23 days ago 662nd namelessiw 0 6 160ms 13 Oct 2025 662nd Shanethegamer 🇺🇸 0 6 193ms 20 Oct 2025 662nd GolfingSuccess 🇬🇷 0 6 156ms 13 Dec 2025 665th Natanaelel 🇸🇪 0 7 59ms 2 May 2025 665th 2bular 0 7 55ms 2 May 2025 665th kg583 🇺🇸 0 7 262ms 8 May 2025 665th GolfingSuccess 🇬🇷 0 7 262ms 14 May 2025 665th Shanethegamer 🇺🇸 0 7 57ms 30 May 2025 665th JOrE20 0 7 267ms 27 Feb 2026 665th darrenks 🇺🇸 0 7 58ms 21 days ago 665th plcc0 0 7 58ms 20 days ago 673rd ovs-code 🇩🇪 0 8 55ms 12 Oct 2025 674th GolfingSuccess 🇬🇷 0 13 158ms 8 May 2025 674th Shanethegamer 🇺🇸 0 13 148ms 30 May 2025 676th themoonisacheese 0 18 1,011ms 16 days ago 677th GolfingSuccess 🇬🇷 0 41 16ms 8 Aug 2025 678th Shanethegamer 🇺🇸 0 42 10ms 7 Feb 2026 679th KatieLG 🇬🇧 0 50 16ms 18 days ago 680th Shanethegamer 🇺🇸 0 56 66ms 30 Apr 2025 680th GolfingSuccess 🇬🇷 0 56 70ms 8 May 2025 680th sean-niemann 🇺🇸 0 56 67ms 8 May 2025 683rd Matter1024 🇮🇳 0 57 68ms 13 Feb 2026 684th GolfingSuccess 🇬🇷 0 59 72ms 8 May 2025 685th madex 🇩🇪 0 62 1,125ms 19 days ago 686th GolfingSuccess 🇬🇷 0 67 12ms 8 May 2025 687th dokutan 0 72 76ms 8 Feb 2026 688th GolfingSuccess 🇬🇷 0 73 7ms 20 days ago 689th fuzzylojik-golf 🇻🇦 0 76 7ms 16 days ago 690th ovs-code 🇩🇪 0 77 78ms 30 May 2025 691st GolfingSuccess 🇬🇷 0 79 79ms 14 May 2025 692nd GolfingSuccess 🇬🇷 0 81 16ms 2 days ago 693rd edsrzf 🇳🇿 0 94 187ms 17 May 2025 694th GolfingSuccess 🇬🇷 0 96 182ms 7 May 2025 695th Matter1024 🇮🇳 0 99 11ms 3 days ago 696th GolfingSuccess 🇬🇷 0 117 8ms 25 Dec 2025 697th GolfingSuccess 🇬🇷 0 138 271ms 8 May 2025 First Prev 641–697 of 697