The Gray Code Decoder and Gray Code Encoder holes will go live in approximately 6 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 319th DialFrost 🇸🇬 0 89 367ms 21 Nov 2025 319th CaedenHarper 🇨🇦 0 89 103ms 2 days ago 319th emgordon154 0 89 400ms 12 hours ago 324th Yax42 🇫🇷 0 90 13ms 21 hours ago 325th GolfingSuccess 🇬🇷 0 91 14ms 13 Dec 2025 326th namelessiw 0 92 504ms 10 Oct 2025 326th fuzzylojik-golf 🇺🇸 0 92 390ms 37 hours ago 326th madex 🇩🇪 0 92 12ms 16 hours ago 329th edsrzf 🇳🇿 0 93 187ms 17 May 2025 329th CaedenHarper 🇨🇦 0 93 13ms 3 days ago 331st DialFrost 🇸🇬 0 94 13ms 10 May 2025 332nd Yax42 🇫🇷 0 95 389ms 21 hours ago 333rd GolfingSuccess 🇬🇷 0 96 182ms 7 May 2025 333rd HumanoidCPU 0 96 160ms 14 hours ago 335th Shanethegamer 🇺🇸 0 98 7ms 6 May 2025 336th snydej 0 99 43ms 22 Nov 2024 336th albanian-laundromat 0 99 343ms 3 days ago 336th dokutan 0 99 409ms 3 hours ago 339th dokutan 0 100 19ms 3 hours ago 340th sean-niemann 🇺🇸 0 102 286ms 8 May 2025 340th Shanethegamer 🇺🇸 0 102 307ms 8 May 2025 340th edsrzf 🇳🇿 0 102 295ms 9 May 2025 340th GolfingSuccess 🇬🇷 0 102 306ms 9 May 2025 340th ovs-code 🇩🇪 0 102 311ms 13 Dec 2025 340th kg583 🇺🇸 0 102 13ms 25 Jan 2026 340th CaedenHarper 🇨🇦 0 102 301ms 3 days ago 340th fuzzylojik-golf 🇺🇸 0 102 292ms 38 hours ago 340th emgordon154 0 102 274ms 9 hours ago 349th lukechampine 0 103 301ms 7 Jun 2025 349th chris124567 0 103 294ms 8 Jun 2025 349th albanian-laundromat 0 103 270ms 16 Dec 2025 349th GolfingSuccess 🇬🇷 0 103 336ms 14 Jan 2026 353rd edsrzf 🇳🇿 0 104 17ms 20 hours ago 354th UnderKoen 🇳🇱 0 107 2,121ms 2 hours ago 355th HumanoidCPU 0 110 363ms 3 hours ago 356th retrohun 0 112 16ms 25 hours ago 357th prestosilver 🇺🇸 0 115 418ms 23 hours ago 358th GolfingSuccess 🇬🇷 0 117 34ms 25 Dec 2025 359th GolfingSuccess 🇬🇷 0 118 94ms 9 hours ago 360th emgordon154 0 119 56ms 10 hours ago 361st edsrzf 🇳🇿 0 123 30ms 15 hours ago 362nd edsrzf 🇳🇿 0 127 58ms 4 hours ago 363rd saito-ta 🇯🇵 0 128 1,990ms 8 May 2025 364th CaedenHarper 🇨🇦 0 129 446ms 3 days ago 365th Natanaelel 🇸🇪 0 130 360ms 2 May 2025 366th Shanethegamer 🇺🇸 0 136 315ms 26 Nov 2024 367th albanian-laundromat 0 137 27ms 3 days ago 368th GolfingSuccess 🇬🇷 0 138 336ms 8 May 2025 369th canissimia 🇦🇶 0 143 15ms 8 hours ago 370th emgordon154 0 150 15ms 9 May 2025 370th albanian-laundromat 0 150 28ms 3 days ago 372nd GolfingSuccess 🇬🇷 0 152 84ms 4 days ago 373rd JOrE20 0 159 69ms 14 Feb 2026 374th RYSF13 🇨🇳 0 168 13ms 25 Jun 2025 375th Shanethegamer 🇺🇸 0 197 1,442ms 1 Feb 2025 376th voytxt 🇨🇿 0 200 1,425ms 6 Feb 2026 376th GolfingSuccess 🇬🇷 0 200 1,407ms 11 hours ago 376th emgordon154 0 200 1,683ms 41 mins ago 379th albanian-laundromat 0 243 15ms 3 days ago 380th albanian-laundromat 0 256 115ms 2 days ago 381st JOrE20 0 381 2,653ms 29 Dec 2025 382nd CaedenHarper 🇨🇦 0 853 550ms 2 days ago First Prev 321–382 of 382
