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 238th fantaize 0 83 156ms 13 days ago 242nd Shanethegamer 🇺🇸 0 84 416ms 26 Nov 2024 242nd ovs-code 🇩🇪 0 84 12ms 10 May 2025 242nd fuzzylojik-golf 🇺🇸 0 84 444ms 8 hours ago 245th GolfingSuccess 🇬🇷 0 85 46ms 8 May 2025 245th edsrzf 🇳🇿 0 85 42ms 8 May 2025 245th edsrzf 🇳🇿 0 85 18ms 9 May 2025 245th error256 0 85 18ms 10 May 2025 245th GolfingSuccess 🇬🇷 0 85 3ms 14 Jan 2026 250th Shanethegamer 🇺🇸 0 86 147ms 17 Dec 2024 250th kg583 🇺🇸 0 86 39ms 16 Feb 2025 250th GolfingSuccess 🇬🇷 0 86 44ms 7 May 2025 250th GolfingSuccess 🇬🇷 0 86 2,431ms 8 May 2025 250th edsrzf 🇳🇿 0 86 155ms 9 May 2025 250th sean-niemann 🇺🇸 0 86 496ms 25 Sep 2025 250th GolfingSuccess 🇬🇷 0 86 8ms 12 Nov 2025 250th MeWhenI 🇻🇦 0 86 381ms 21 Nov 2025 250th GolfingSuccess 🇬🇷 0 86 399ms 12 Jan 2026 250th elgan65536 🇺🇸 0 86 168ms 23 days ago 250th CaedenHarper 🇨🇦 0 86 399ms 2 days ago 250th CaedenHarper 🇨🇦 0 86 153ms 32 hours ago 262nd Shanethegamer 🇺🇸 0 87 42ms 15 Apr 2025 262nd GolfingSuccess 🇬🇷 0 87 18ms 8 May 2025 262nd Shanethegamer 🇺🇸 0 87 20ms 8 May 2025 262nd albanian-laundromat 0 87 1,424ms 2 days ago 266th GolfingSuccess 🇬🇷 0 88 6ms 12 Nov 2025 266th kg583 🇺🇸 0 88 23ms 12 Feb 2026 266th fuzzylojik-golf 🇺🇸 0 88 152ms 6 hours ago 269th Shanethegamer 🇺🇸 0 89 341ms 6 May 2025 269th Shanethegamer 🇺🇸 0 89 511ms 24 Sep 2025 269th DialFrost 🇸🇬 0 89 367ms 21 Nov 2025 269th CaedenHarper 🇨🇦 0 89 103ms 32 hours ago 273rd KasperKivimaeki 🇫🇮 0 91 13ms 8 May 2025 273rd GolfingSuccess 🇬🇷 0 91 14ms 13 Dec 2025 275th namelessiw 0 92 504ms 10 Oct 2025 275th fuzzylojik-golf 🇺🇸 0 92 390ms 7 hours ago 277th edsrzf 🇳🇿 0 93 187ms 17 May 2025 277th CaedenHarper 🇨🇦 0 93 13ms 2 days ago 279th DialFrost 🇸🇬 0 94 13ms 10 May 2025 280th GolfingSuccess 🇬🇷 0 96 182ms 7 May 2025 281st Shanethegamer 🇺🇸 0 98 7ms 6 May 2025 282nd snydej 0 99 43ms 22 Nov 2024 282nd albanian-laundromat 0 99 343ms 2 days ago 284th sean-niemann 🇺🇸 0 102 286ms 8 May 2025 284th Shanethegamer 🇺🇸 0 102 307ms 8 May 2025 284th edsrzf 🇳🇿 0 102 295ms 9 May 2025 284th GolfingSuccess 🇬🇷 0 102 306ms 9 May 2025 284th ovs-code 🇩🇪 0 102 311ms 13 Dec 2025 284th kg583 🇺🇸 0 102 13ms 25 Jan 2026 284th CaedenHarper 🇨🇦 0 102 301ms 2 days ago 284th fuzzylojik-golf 🇺🇸 0 102 292ms 7 hours ago 292nd lukechampine 0 103 301ms 7 Jun 2025 292nd chris124567 0 103 294ms 8 Jun 2025 292nd albanian-laundromat 0 103 294ms 16 Dec 2025 292nd GolfingSuccess 🇬🇷 0 103 336ms 14 Jan 2026 296th edsrzf 🇳🇿 0 114 18ms 10 May 2025 297th GolfingSuccess 🇬🇷 0 117 34ms 25 Dec 2025 298th saito-ta 🇯🇵 0 128 1,990ms 8 May 2025 299th CaedenHarper 🇨🇦 0 129 455ms 2 days ago 300th Natanaelel 🇸🇪 0 130 335ms 2 May 2025 301st Shanethegamer 🇺🇸 0 136 315ms 26 Nov 2024 302nd albanian-laundromat 0 137 27ms 2 days ago 303rd GolfingSuccess 🇬🇷 0 138 336ms 8 May 2025 304th emgordon154 0 150 15ms 9 May 2025 304th albanian-laundromat 0 150 28ms 2 days ago 306th GolfingSuccess 🇬🇷 0 152 84ms 3 days ago 307th JOrE20 0 159 69ms 14 Feb 2026 308th RYSF13 🇨🇳 0 168 13ms 25 Jun 2025 309th Shanethegamer 🇺🇸 0 197 1,442ms 1 Feb 2025 310th voytxt 🇨🇿 0 200 1,425ms 6 Feb 2026 311th GolfingSuccess 🇬🇷 0 219 1,452ms 13 Dec 2025 312th albanian-laundromat 0 243 15ms 2 days ago 313th albanian-laundromat 0 256 117ms 19 hours ago 314th JOrE20 0 381 2,673ms 29 Dec 2025 315th CaedenHarper 🇨🇦 0 853 550ms 34 hours ago First Prev 241–315 of 315
