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 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 160th IanUtley 0 59 18ms 8 May 2025 160th GolfingSuccess 🇬🇷 0 59 63ms 8 May 2025 163rd pardouin 🇫🇷 0 60 2,725ms 15 Feb 2026 163rd fuzzylojik-golf 🇺🇸 0 60 16ms 35 hours ago 163rd emgordon154 0 60 3,008ms 10 hours ago 163rd edsrzf 🇳🇿 0 60 2,595ms 8 hours ago 163rd fuzzylojik-golf 🇺🇸 0 60 2,673ms 2 hours ago 168th GolfingSuccess 🇬🇷 0 61 2,438ms 8 May 2025 168th madex 🇩🇪 0 61 2,738ms 4 days ago 168th dokutan 0 61 183ms 50 mins ago 171st lifthrasiir 🇰🇷 0 62 37ms 22 Nov 2024 171st GolfingSuccess 🇬🇷 0 62 15ms 25 Nov 2024 171st AlephSquirrel 0 62 15ms 25 Nov 2024 171st hallvabo 🇳🇴 0 62 38ms 26 Nov 2024 171st kg583 🇺🇸 0 62 36ms 1 Dec 2024 171st CornerMercury 🇬🇧 0 62 15ms 3 Dec 2024 171st ndren 0 62 15ms 3 Dec 2024 171st btnlq 0 62 15ms 4 Dec 2024 171st Shanethegamer 🇺🇸 0 62 16ms 10 Dec 2024 171st Artemis21 🇬🇧 0 62 16ms 24 Dec 2024 171st ovs-code 🇩🇪 0 62 15ms 5 Jan 2025 171st khvdm 0 62 15ms 12 Jan 2025 171st bricknellj 0 62 16ms 30 Jan 2025 171st DialFrost 🇸🇬 0 62 15ms 17 Feb 2025 171st pardouin 🇫🇷 0 62 14ms 24 Feb 2025 171st error256 0 62 16ms 12 Apr 2025 171st MeWhenI 🇻🇦 0 62 14ms 8 May 2025 171st Shanethegamer 🇺🇸 0 62 2,495ms 8 May 2025 171st sean-niemann 🇺🇸 0 62 16ms 8 May 2025 171st 4atj 0 62 16ms 9 May 2025 171st emgordon154 0 62 16ms 9 May 2025 171st Natanaelel 🇸🇪 0 62 16ms 11 May 2025 171st dokutan 0 62 14ms 15 Aug 2025 171st hiichbindermax 0 62 18ms 17 Aug 2025 171st 5cw 🇺🇸 0 62 15ms 22 Aug 2025 171st commandz0 🇺🇸 0 62 15ms 27 Aug 2025 171st SirBogman 🇺🇸 0 62 15ms 12 Oct 2025 171st KasperKivimaeki 🇫🇮 0 62 15ms 20 Oct 2025 171st albanian-laundromat 0 62 16ms 2 Dec 2025 171st GolfingSuccess 🇬🇷 0 62 5ms 13 Dec 2025 171st Matter1024 🇮🇳 0 62 15ms 12 Feb 2026 171st Steffan153 🇫🇮 0 62 16ms 19 Feb 2026 171st lukegustafson 🇺🇸 0 62 36ms 16 days ago 171st aksyristos 0 62 14ms 13 days ago 171st madex 🇩🇪 0 62 15ms 5 days ago 171st CaedenHarper 🇨🇦 0 62 16ms 3 days ago 171st KatieLG 🇬🇧 0 62 17ms 38 hours ago 171st KatieLG 🇬🇧 0 62 416ms 38 hours ago 171st scpchicken 🇵🇼 0 62 15ms 38 hours ago 171st fuzzylojik-golf 🇺🇸 0 62 15ms 37 hours ago 171st StefanHabel 🇨🇦 0 62 15ms 31 hours ago 171st Seek64 🇩🇪 0 62 15ms 30 hours ago 171st blaztoma 🇱🇹 0 62 15ms 29 hours ago 171st BREMAUCY 🇫🇷 0 62 16ms 27 hours ago 171st Emutis 🇱🇹 0 62 16ms 27 hours ago 171st Andrey2001 0 62 16ms 21 hours ago 171st anter69 🇭🇺 0 62 15ms 17 hours ago 171st HumanoidCPU 0 62 16ms 14 hours ago 171st qpwoeirut 0 62 17ms 9 hours ago 171st stefangimmillaro 0 62 16ms 8 hours ago 171st btjones0 0 62 15ms 6 hours ago 171st bzijlema 🇳🇱 0 62 16ms 3 hours ago 171st ahmetdemirag 🇨🇾 0 62 15ms 35 mins ago 171st plcc0 0 62 15ms 33 mins ago 225th sean-niemann 🇺🇸 0 63 43ms 8 May 2025 225th albanian-laundromat 0 63 44ms 14 Jan 2026 225th tomh1012 0 63 15ms 25 hours ago 228th jameswmccarty 0 64 15ms 29 Mar 2025 228th albanian-laundromat 0 64 188ms 3 days ago 230th Shanethegamer 🇺🇸 0 66 1,317ms 26 Nov 2024 230th rucin93 🇵🇱 0 66 6ms 8 May 2025 230th sean-niemann 🇺🇸 0 66 7ms 8 May 2025 230th AdrienHache 🇫🇷 0 66 421ms 2 Nov 2025 230th namelessiw 0 66 434ms 2 Nov 2025 230th GolfingSuccess 🇬🇷 0 66 430ms 4 Feb 2026 230th albanian-laundromat 0 66 1,391ms 3 days ago 230th Yax42 🇫🇷 0 66 484ms 47 hours ago 230th fuzzylojik-golf 🇺🇸 0 66 456ms 36 hours ago 230th edsrzf 🇳🇿 0 66 7ms 8 hours ago 240th GolfingSuccess 🇬🇷 0 67 12ms 8 May 2025 First Prev 161–240 of 378 Next Last