The Gray Code Decoder and Gray Code Encoder holes will go live in approximately 7 days. Why not try and solve them ahead of time?
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 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 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 Rectangle Fill Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Taxicab Numbers Turtle Tutorial # Golfer Points Bytes Time Submitted 239th edsrzf 🇳🇿 0 85 18ms 9 May 2025 239th error256 0 85 18ms 10 May 2025 239th GolfingSuccess 🇬🇷 0 85 3ms 14 Jan 2026 244th Shanethegamer 🇺🇸 0 86 147ms 17 Dec 2024 244th kg583 🇺🇸 0 86 39ms 16 Feb 2025 244th GolfingSuccess 🇬🇷 0 86 44ms 7 May 2025 244th GolfingSuccess 🇬🇷 0 86 2,431ms 8 May 2025 244th edsrzf 🇳🇿 0 86 155ms 9 May 2025 244th sean-niemann 🇺🇸 0 86 496ms 25 Sep 2025 244th GolfingSuccess 🇬🇷 0 86 8ms 12 Nov 2025 244th MeWhenI 🇻🇦 0 86 381ms 21 Nov 2025 244th GolfingSuccess 🇬🇷 0 86 399ms 12 Jan 2026 244th elgan65536 🇺🇸 0 86 168ms 22 days ago 244th CaedenHarper 🇨🇦 0 86 399ms 2 days ago 244th CaedenHarper 🇨🇦 0 86 153ms 25 hours ago 256th Shanethegamer 🇺🇸 0 87 42ms 15 Apr 2025 256th GolfingSuccess 🇬🇷 0 87 18ms 8 May 2025 256th Shanethegamer 🇺🇸 0 87 20ms 8 May 2025 256th albanian-laundromat 0 87 1,424ms 47 hours ago 260th GolfingSuccess 🇬🇷 0 88 6ms 12 Nov 2025 260th kg583 🇺🇸 0 88 23ms 12 Feb 2026 262nd Shanethegamer 🇺🇸 0 89 341ms 6 May 2025 262nd Shanethegamer 🇺🇸 0 89 511ms 24 Sep 2025 262nd DialFrost 🇸🇬 0 89 367ms 21 Nov 2025 262nd CaedenHarper 🇨🇦 0 89 103ms 25 hours ago 266th KasperKivimaeki 🇫🇮 0 91 13ms 8 May 2025 266th GolfingSuccess 🇬🇷 0 91 14ms 13 Dec 2025 268th namelessiw 0 92 504ms 10 Oct 2025 268th fuzzylojik-golf 🇺🇸 0 92 390ms 32 mins ago 270th CaedenHarper 🇨🇦 0 93 13ms 2 days ago 271st DialFrost 🇸🇬 0 94 13ms 10 May 2025 271st edsrzf 🇳🇿 0 94 187ms 17 May 2025 273rd GolfingSuccess 🇬🇷 0 96 182ms 7 May 2025 274th Shanethegamer 🇺🇸 0 98 7ms 6 May 2025 275th snydej 0 99 43ms 22 Nov 2024 275th albanian-laundromat 0 99 343ms 2 days ago 277th sean-niemann 🇺🇸 0 102 286ms 8 May 2025 277th Shanethegamer 🇺🇸 0 102 307ms 8 May 2025 277th edsrzf 🇳🇿 0 102 295ms 9 May 2025 277th GolfingSuccess 🇬🇷 0 102 306ms 9 May 2025 277th ovs-code 🇩🇪 0 102 311ms 13 Dec 2025 277th CaedenHarper 🇨🇦 0 102 301ms 2 days ago 277th fuzzylojik-golf 🇺🇸 0 102 292ms 76 mins ago 284th lukechampine 0 103 301ms 7 Jun 2025 284th chris124567 0 103 294ms 8 Jun 2025 284th albanian-laundromat 0 103 294ms 16 Dec 2025 284th GolfingSuccess 🇬🇷 0 103 336ms 14 Jan 2026 288th kg583 🇺🇸 0 110 14ms 12 Jan 2026 289th edsrzf 🇳🇿 0 114 18ms 10 May 2025 290th GolfingSuccess 🇬🇷 0 117 34ms 25 Dec 2025 291st saito-ta 🇯🇵 0 128 1,990ms 8 May 2025 292nd CaedenHarper 🇨🇦 0 129 455ms 2 days ago 293rd Natanaelel 🇸🇪 0 130 335ms 2 May 2025 294th Shanethegamer 🇺🇸 0 136 315ms 26 Nov 2024 295th albanian-laundromat 0 137 27ms 46 hours ago 296th GolfingSuccess 🇬🇷 0 138 336ms 8 May 2025 297th emgordon154 0 150 15ms 9 May 2025 297th albanian-laundromat 0 150 28ms 46 hours ago 299th GolfingSuccess 🇬🇷 0 152 84ms 3 days ago 300th JOrE20 0 159 69ms 14 Feb 2026 301st RYSF13 🇨🇳 0 168 13ms 25 Jun 2025 302nd Shanethegamer 🇺🇸 0 197 1,442ms 1 Feb 2025 303rd voytxt 🇨🇿 0 200 1,425ms 6 Feb 2026 304th GolfingSuccess 🇬🇷 0 219 1,452ms 13 Dec 2025 305th albanian-laundromat 0 243 15ms 2 days ago 306th albanian-laundromat 0 256 117ms 12 hours ago 307th JOrE20 0 381 2,673ms 29 Dec 2025 308th CaedenHarper 🇨🇦 0 853 550ms 28 hours ago First Prev 241–308 of 308
