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 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 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 Chars Time Submitted 239th fuzzylojik-golf 🇺🇸 0 84 444ms 4 hours ago 242nd GolfingSuccess 🇬🇷 0 85 46ms 8 May 2025 242nd edsrzf 🇳🇿 0 85 42ms 8 May 2025 242nd edsrzf 🇳🇿 0 85 18ms 9 May 2025 242nd error256 0 85 18ms 10 May 2025 242nd GolfingSuccess 🇬🇷 0 85 3ms 14 Jan 2026 247th Shanethegamer 🇺🇸 0 86 147ms 17 Dec 2024 247th kg583 🇺🇸 0 86 39ms 16 Feb 2025 247th GolfingSuccess 🇬🇷 0 86 44ms 7 May 2025 247th GolfingSuccess 🇬🇷 0 86 2,431ms 8 May 2025 247th edsrzf 🇳🇿 0 86 155ms 9 May 2025 247th sean-niemann 🇺🇸 0 86 496ms 25 Sep 2025 247th GolfingSuccess 🇬🇷 0 86 8ms 12 Nov 2025 247th MeWhenI 🇻🇦 0 86 381ms 21 Nov 2025 247th GolfingSuccess 🇬🇷 0 86 399ms 12 Jan 2026 247th elgan65536 🇺🇸 0 86 168ms 22 days ago 247th CaedenHarper 🇨🇦 0 86 399ms 2 days ago 247th CaedenHarper 🇨🇦 0 86 153ms 28 hours ago 259th Shanethegamer 🇺🇸 0 87 42ms 15 Apr 2025 259th GolfingSuccess 🇬🇷 0 87 18ms 8 May 2025 259th Shanethegamer 🇺🇸 0 87 20ms 8 May 2025 259th albanian-laundromat 0 87 1,424ms 2 days ago 263rd GolfingSuccess 🇬🇷 0 88 6ms 12 Nov 2025 263rd kg583 🇺🇸 0 88 23ms 12 Feb 2026 263rd fuzzylojik-golf 🇺🇸 0 88 152ms 2 hours ago 266th Shanethegamer 🇺🇸 0 89 341ms 6 May 2025 266th Shanethegamer 🇺🇸 0 89 511ms 24 Sep 2025 266th DialFrost 🇸🇬 0 89 367ms 21 Nov 2025 266th CaedenHarper 🇨🇦 0 89 103ms 28 hours ago 270th KasperKivimaeki 🇫🇮 0 91 13ms 8 May 2025 270th GolfingSuccess 🇬🇷 0 91 14ms 13 Dec 2025 272nd namelessiw 0 92 504ms 10 Oct 2025 272nd fuzzylojik-golf 🇺🇸 0 92 390ms 3 hours ago 274th edsrzf 🇳🇿 0 93 187ms 17 May 2025 274th CaedenHarper 🇨🇦 0 93 13ms 2 days ago 276th DialFrost 🇸🇬 0 94 13ms 10 May 2025 277th GolfingSuccess 🇬🇷 0 96 182ms 7 May 2025 278th Shanethegamer 🇺🇸 0 98 7ms 6 May 2025 279th snydej 0 99 43ms 22 Nov 2024 279th albanian-laundromat 0 99 343ms 2 days ago 281st sean-niemann 🇺🇸 0 102 286ms 8 May 2025 281st Shanethegamer 🇺🇸 0 102 307ms 8 May 2025 281st edsrzf 🇳🇿 0 102 295ms 9 May 2025 281st GolfingSuccess 🇬🇷 0 102 306ms 9 May 2025 281st ovs-code 🇩🇪 0 102 311ms 13 Dec 2025 281st kg583 🇺🇸 0 102 13ms 25 Jan 2026 281st CaedenHarper 🇨🇦 0 102 301ms 2 days ago 281st fuzzylojik-golf 🇺🇸 0 102 292ms 4 hours ago 289th lukechampine 0 103 301ms 7 Jun 2025 289th chris124567 0 103 294ms 8 Jun 2025 289th albanian-laundromat 0 103 294ms 16 Dec 2025 289th GolfingSuccess 🇬🇷 0 103 336ms 14 Jan 2026 293rd edsrzf 🇳🇿 0 114 18ms 10 May 2025 294th GolfingSuccess 🇬🇷 0 117 34ms 25 Dec 2025 295th saito-ta 🇯🇵 0 128 1,990ms 8 May 2025 296th CaedenHarper 🇨🇦 0 129 455ms 2 days ago 297th Natanaelel 🇸🇪 0 130 335ms 2 May 2025 298th Shanethegamer 🇺🇸 0 136 315ms 26 Nov 2024 299th albanian-laundromat 0 137 27ms 2 days ago 300th GolfingSuccess 🇬🇷 0 138 336ms 8 May 2025 301st emgordon154 0 150 15ms 9 May 2025 301st albanian-laundromat 0 150 28ms 2 days ago 303rd GolfingSuccess 🇬🇷 0 152 84ms 3 days ago 304th JOrE20 0 159 69ms 14 Feb 2026 305th RYSF13 🇨🇳 0 168 13ms 25 Jun 2025 306th Shanethegamer 🇺🇸 0 197 1,442ms 1 Feb 2025 307th voytxt 🇨🇿 0 200 1,425ms 6 Feb 2026 308th GolfingSuccess 🇬🇷 0 219 1,452ms 13 Dec 2025 309th albanian-laundromat 0 243 15ms 2 days ago 310th albanian-laundromat 0 256 117ms 15 hours ago 311th JOrE20 0 381 2,673ms 29 Dec 2025 312th CaedenHarper 🇨🇦 0 853 550ms 31 hours ago First Prev 241–312 of 312
