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 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 Gray Code Decoder Gray Code Encoder Hexagonal Spiral Highly Composite Numbers NFA Simulator Numbrix Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Taxicab Numbers Turtle Tutorial All Languages ><> ALGOL 68 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 ArkScript 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 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 ArkScript 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 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 Gray Code Decoder Gray Code Encoder Hexagonal Spiral Highly Composite Numbers NFA Simulator Numbrix Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Taxicab Numbers Turtle Tutorial # Golfer Points Bytes Time Submitted 159th sean-niemann 🇺🇸 0 66 7ms 8 May 2025 159th AdrienHache 🇫🇷 0 66 435ms 2 Nov 2025 159th namelessiw 0 66 450ms 2 Nov 2025 159th GolfingSuccess 🇬🇷 0 66 446ms 4 Feb 2026 165th GolfingSuccess 🇬🇷 0 67 13ms 8 May 2025 166th Shanethegamer 🇺🇸 0 68 157ms 26 Nov 2024 166th sean-niemann 🇺🇸 0 68 131ms 8 May 2025 166th edsrzf 🇳🇿 0 68 113ms 25 May 2025 169th GolfingSuccess 🇬🇷 0 69 11ms 8 May 2025 170th JOrE20 0 70 41ms 24 days ago 171st kg583 🇺🇸 0 71 27ms 1 Dec 2024 171st CLOStrophobic 🇮🇹 0 71 13ms 18 Jan 2025 171st GolfingSuccess 🇬🇷 0 71 14ms 7 May 2025 171st edsrzf 🇳🇿 0 71 14ms 8 May 2025 171st AlephSquirrel 0 71 13ms 9 May 2025 176th Shanethegamer 🇺🇸 0 72 27ms 9 Dec 2024 176th dokutan 0 72 62ms 8 Feb 2026 178th GolfingSuccess 🇬🇷 0 73 16ms 8 May 2025 179th Shanethegamer 🇺🇸 0 75 99ms 26 Nov 2024 179th sean-niemann 🇺🇸 0 75 103ms 8 May 2025 181st GolfingSuccess 🇬🇷 0 76 133ms 28 Nov 2025 182nd rucin93 🇵🇱 0 77 130ms 8 May 2025 182nd ovs-code 🇩🇪 0 77 81ms 30 May 2025 182nd Shanethegamer 🇺🇸 0 77 146ms 12 Nov 2025 185th saito-ta 🇯🇵 0 78 4ms 10 May 2025 185th rhdqor213 0 78 4ms 10 May 2025 187th GolfingSuccess 🇬🇷 0 79 79ms 14 May 2025 188th sean-niemann 🇺🇸 0 80 455ms 8 May 2025 189th kumavale 0 81 156ms 26 Nov 2025 189th Matter1024 🇮🇳 0 81 45ms 23 days ago 191st GolfingSuccess 🇬🇷 0 82 502ms 8 May 2025 191st emgordon154 0 82 162ms 23 days ago 193rd Shanethegamer 🇺🇸 0 83 484ms 26 Nov 2024 193rd edsrzf 🇳🇿 0 83 422ms 9 Jul 2025 193rd Shanethegamer 🇺🇸 0 83 403ms 9 Jul 2025 196th Shanethegamer 🇺🇸 0 84 457ms 26 Nov 2024 196th ovs-code 🇩🇪 0 84 12ms 10 May 2025 198th GolfingSuccess 🇬🇷 0 85 43ms 8 May 2025 198th edsrzf 🇳🇿 0 85 42ms 8 May 2025 198th edsrzf 🇳🇿 0 85 18ms 9 May 2025 198th error256 0 85 17ms 10 May 2025 198th GolfingSuccess 🇬🇷 0 85 3ms 14 Jan 2026 203rd Shanethegamer 🇺🇸 0 86 147ms 17 Dec 2024 203rd kg583 🇺🇸 0 86 39ms 16 Feb 2025 203rd GolfingSuccess 🇬🇷 0 86 44ms 7 May 2025 203rd GolfingSuccess 🇬🇷 0 86 2,453ms 8 May 2025 203rd edsrzf 🇳🇿 0 86 155ms 9 May 2025 203rd sean-niemann 🇺🇸 0 86 496ms 25 Sep 2025 203rd GolfingSuccess 🇬🇷 0 86 8ms 12 Nov 2025 203rd MeWhenI 🇻🇦 0 86 381ms 21 Nov 2025 203rd GolfingSuccess 🇬🇷 0 86 399ms 12 Jan 2026 203rd elgan65536 🇺🇸 0 86 168ms 8 days ago 213th Shanethegamer 🇺🇸 0 87 42ms 15 Apr 2025 213th GolfingSuccess 🇬🇷 0 87 18ms 8 May 2025 213th Shanethegamer 🇺🇸 0 87 18ms 8 May 2025 216th GolfingSuccess 🇬🇷 0 88 5ms 12 Nov 2025 216th kg583 🇺🇸 0 88 22ms 25 days ago 218th Shanethegamer 🇺🇸 0 89 341ms 6 May 2025 218th Shanethegamer 🇺🇸 0 89 511ms 24 Sep 2025 218th DialFrost 🇸🇬 0 89 367ms 21 Nov 2025 221st KasperKivimaeki 🇫🇮 0 91 13ms 8 May 2025 221st GolfingSuccess 🇬🇷 0 91 14ms 13 Dec 2025 223rd namelessiw 0 92 504ms 10 Oct 2025 224th DialFrost 🇸🇬 0 94 13ms 10 May 2025 224th edsrzf 🇳🇿 0 94 187ms 17 May 2025 226th GolfingSuccess 🇬🇷 0 96 173ms 7 May 2025 227th Shanethegamer 🇺🇸 0 98 7ms 6 May 2025 228th snydej 0 99 43ms 22 Nov 2024 229th sean-niemann 🇺🇸 0 102 286ms 8 May 2025 229th Shanethegamer 🇺🇸 0 102 307ms 8 May 2025 229th edsrzf 🇳🇿 0 102 295ms 9 May 2025 229th GolfingSuccess 🇬🇷 0 102 306ms 9 May 2025 229th ovs-code 🇩🇪 0 102 311ms 13 Dec 2025 234th lukechampine 0 103 301ms 7 Jun 2025 234th chris124567 0 103 294ms 8 Jun 2025 234th albanian-laundromat 0 103 294ms 16 Dec 2025 234th GolfingSuccess 🇬🇷 0 103 336ms 14 Jan 2026 238th kg583 🇺🇸 0 110 14ms 12 Jan 2026 239th edsrzf 🇳🇿 0 114 18ms 10 May 2025 240th GolfingSuccess 🇬🇷 0 117 34ms 25 Dec 2025 First Prev 161–240 of 252 Next Last