The Gray Code Decoder and Gray Code Encoder holes will go live in approximately 5 hours. 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 225th MeWhenI 🇻🇦 0 62 14ms 8 May 2025 225th Shanethegamer 🇺🇸 0 62 2,495ms 8 May 2025 225th sean-niemann 🇺🇸 0 62 16ms 8 May 2025 225th 4atj 0 62 16ms 9 May 2025 225th emgordon154 0 62 16ms 9 May 2025 225th Natanaelel 🇸🇪 0 62 16ms 11 May 2025 225th dokutan 0 62 14ms 15 Aug 2025 225th hiichbindermax 0 62 16ms 17 Aug 2025 225th 5cw 🇺🇸 0 62 15ms 22 Aug 2025 225th commandz0 🇺🇸 0 62 15ms 27 Aug 2025 225th SirBogman 🇺🇸 0 62 15ms 12 Oct 2025 225th KasperKivimaeki 🇫🇮 0 62 15ms 20 Oct 2025 225th albanian-laundromat 0 62 16ms 2 Dec 2025 225th Matter1024 🇮🇳 0 62 15ms 12 Feb 2026 225th Steffan153 🇫🇮 0 62 16ms 19 Feb 2026 225th lukegustafson 🇺🇸 0 62 36ms 22 days ago 225th aksyristos 0 62 14ms 19 days ago 225th madex 🇩🇪 0 62 15ms 11 days ago 225th CaedenHarper 🇨🇦 0 62 16ms 9 days ago 225th KatieLG 🇬🇧 0 62 16ms 7 days ago 225th KatieLG 🇬🇧 0 62 416ms 7 days ago 225th scpchicken 🇵🇼 0 62 15ms 7 days ago 225th fuzzylojik-golf 🇺🇸 0 62 15ms 7 days ago 225th StefanHabel 🇨🇦 0 62 15ms 7 days ago 225th Seek64 🇩🇪 0 62 15ms 7 days ago 225th blaztoma 🇱🇹 0 62 15ms 7 days ago 225th BREMAUCY 🇫🇷 0 62 16ms 7 days ago 225th Emutis 🇱🇹 0 62 16ms 7 days ago 225th Andrey2001 0 62 16ms 7 days ago 225th anter69 🇭🇺 0 62 15ms 6 days ago 225th HumanoidCPU 0 62 16ms 6 days ago 225th qpwoeirut 0 62 16ms 6 days ago 225th stefangimmillaro 0 62 16ms 6 days ago 225th btjones0 0 62 15ms 6 days ago 225th bzijlema 🇳🇱 0 62 16ms 6 days ago 225th ahmetdemirag 🇨🇾 0 62 15ms 6 days ago 225th plcc0 0 62 15ms 6 days ago 225th Pyroan 0 62 17ms 5 days ago 225th edsrzf 🇳🇿 0 62 15ms 5 days ago 225th zacjl 0 62 15ms 5 days ago 225th MeWhenI 🇻🇦 0 62 86ms 5 days ago 225th ComradeSquirrel 0 62 14ms 5 days ago 225th duckyluuk 🇳🇱 0 62 15ms 5 days ago 225th Aquateraneal 🇺🇸 0 62 15ms 4 days ago 225th madex 🇩🇪 0 62 439ms 4 days ago 225th madex 🇩🇪 0 62 1,125ms 4 days ago 225th luuumine 🇫🇷 0 62 15ms 4 days ago 225th solisolu 0 62 36ms 2 days ago 225th LostSyntax21 🇬🇧 0 62 16ms 2 days ago 225th davecame 0 62 41ms 19 hours ago 291st sean-niemann 🇺🇸 0 63 43ms 8 May 2025 291st albanian-laundromat 0 63 44ms 14 Jan 2026 291st tomh1012 0 63 15ms 7 days ago 291st mishak-sys 0 63 15ms 5 days ago 295th jameswmccarty 0 64 15ms 29 Mar 2025 295th albanian-laundromat 0 64 188ms 9 days ago 295th zgialor-lab 0 64 16ms 6 days ago 298th JDiLenarda 🇫🇷 0 65 1,347ms 6 days ago 299th Shanethegamer 🇺🇸 0 66 1,317ms 26 Nov 2024 299th rucin93 🇵🇱 0 66 7ms 8 May 2025 299th sean-niemann 🇺🇸 0 66 7ms 8 May 2025 299th AdrienHache 🇫🇷 0 66 421ms 2 Nov 2025 299th namelessiw 0 66 445ms 2 Nov 2025 299th GolfingSuccess 🇬🇷 0 66 430ms 4 Feb 2026 299th albanian-laundromat 0 66 1,345ms 9 days ago 299th Yax42 🇫🇷 0 66 461ms 8 days ago 299th fuzzylojik-golf 🇺🇸 0 66 456ms 7 days ago 299th edsrzf 🇳🇿 0 66 6ms 6 days ago 299th edsrzf 🇳🇿 0 66 1,345ms 5 days ago 299th edsrzf 🇳🇿 0 66 451ms 5 days ago 299th Steffan153 🇫🇮 0 66 480ms 5 days ago 299th Steffan153 🇫🇮 0 66 7ms 4 days ago 299th AstroOrbis 0 66 15ms 2 days ago 314th GolfingSuccess 🇬🇷 0 67 12ms 8 May 2025 314th tomh1012 0 67 429ms 7 days ago 314th msbranicky 0 67 16ms 4 days ago 317th Shanethegamer 🇺🇸 0 68 145ms 26 Nov 2024 317th sean-niemann 🇺🇸 0 68 131ms 8 May 2025 317th edsrzf 🇳🇿 0 68 113ms 25 May 2025 317th GolfingSuccess 🇬🇷 0 68 110ms 8 days ago First Prev 241–320 of 524 Next Last