The Gray Code Decoder and Gray Code Encoder holes will go live in approximately 4 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 203rd fuzzylojik-golf 🇺🇸 0 62 15ms 3 days ago 203rd StefanHabel 🇨🇦 0 62 15ms 2 days ago 203rd Seek64 🇩🇪 0 62 15ms 2 days ago 203rd blaztoma 🇱🇹 0 62 15ms 2 days ago 203rd BREMAUCY 🇫🇷 0 62 16ms 2 days ago 203rd Emutis 🇱🇹 0 62 16ms 2 days ago 203rd Andrey2001 0 62 16ms 2 days ago 203rd anter69 🇭🇺 0 62 15ms 2 days ago 203rd HumanoidCPU 0 62 16ms 2 days ago 203rd qpwoeirut 0 62 17ms 2 days ago 203rd stefangimmillaro 0 62 16ms 2 days ago 203rd btjones0 0 62 15ms 47 hours ago 203rd bzijlema 🇳🇱 0 62 16ms 43 hours ago 203rd ahmetdemirag 🇨🇾 0 62 15ms 40 hours ago 203rd plcc0 0 62 15ms 40 hours ago 203rd Pyroan 0 62 19ms 34 hours ago 203rd edsrzf 🇳🇿 0 62 15ms 32 hours ago 203rd zacjl 0 62 17ms 25 hours ago 203rd MeWhenI 🇻🇦 0 62 86ms 24 hours ago 203rd ComradeSquirrel 0 62 14ms 22 hours ago 203rd duckyluuk 🇳🇱 0 62 15ms 16 hours ago 203rd Aquateraneal 🇺🇸 0 62 15ms 5 hours ago 263rd sean-niemann 🇺🇸 0 63 43ms 8 May 2025 263rd albanian-laundromat 0 63 44ms 14 Jan 2026 263rd tomh1012 0 63 15ms 2 days ago 263rd MeWhenI 🇻🇦 0 63 204ms 33 hours ago 263rd mishak-sys 0 63 15ms 15 hours ago 268th jameswmccarty 0 64 15ms 29 Mar 2025 268th albanian-laundromat 0 64 188ms 5 days ago 268th zgialor-lab 0 64 16ms 36 hours ago 271st JDiLenarda 🇫🇷 0 65 1,347ms 39 hours ago 272nd Shanethegamer 🇺🇸 0 66 1,317ms 26 Nov 2024 272nd rucin93 🇵🇱 0 66 6ms 8 May 2025 272nd sean-niemann 🇺🇸 0 66 7ms 8 May 2025 272nd AdrienHache 🇫🇷 0 66 421ms 2 Nov 2025 272nd namelessiw 0 66 474ms 2 Nov 2025 272nd GolfingSuccess 🇬🇷 0 66 430ms 4 Feb 2026 272nd albanian-laundromat 0 66 1,345ms 5 days ago 272nd Yax42 🇫🇷 0 66 484ms 3 days ago 272nd fuzzylojik-golf 🇺🇸 0 66 456ms 3 days ago 272nd edsrzf 🇳🇿 0 66 7ms 2 days ago 272nd edsrzf 🇳🇿 0 66 1,345ms 32 hours ago 272nd edsrzf 🇳🇿 0 66 451ms 20 hours ago 272nd Steffan153 🇫🇮 0 66 480ms 13 hours ago 272nd Steffan153 🇫🇮 0 66 7ms 8 hours ago 286th GolfingSuccess 🇬🇷 0 67 12ms 8 May 2025 286th tomh1012 0 67 429ms 2 days ago 288th Shanethegamer 🇺🇸 0 68 145ms 26 Nov 2024 288th sean-niemann 🇺🇸 0 68 131ms 8 May 2025 288th edsrzf 🇳🇿 0 68 113ms 25 May 2025 288th GolfingSuccess 🇬🇷 0 68 110ms 4 days ago 288th fuzzylojik-golf 🇺🇸 0 68 1,320ms 37 hours ago 288th Steffan153 🇫🇮 0 68 104ms 13 hours ago 294th GolfingSuccess 🇬🇷 0 69 10ms 8 May 2025 294th CaedenHarper 🇨🇦 0 69 486ms 4 days ago 296th JOrE20 0 70 41ms 13 Feb 2026 297th kg583 🇺🇸 0 71 27ms 1 Dec 2024 297th CLOStrophobic 🇮🇹 0 71 13ms 18 Jan 2025 297th GolfingSuccess 🇬🇷 0 71 14ms 7 May 2025 297th edsrzf 🇳🇿 0 71 14ms 8 May 2025 297th AlephSquirrel 0 71 13ms 9 May 2025 302nd Shanethegamer 🇺🇸 0 72 27ms 9 Dec 2024 302nd dokutan 0 72 62ms 8 Feb 2026 304th GolfingSuccess 🇬🇷 0 73 16ms 8 May 2025 304th GolfingSuccess 🇬🇷 0 73 8ms 31 hours ago 306th not-a-pokemon 0 74 15ms 37 hours ago 307th Shanethegamer 🇺🇸 0 75 99ms 26 Nov 2024 307th sean-niemann 🇺🇸 0 75 103ms 8 May 2025 307th HumanoidCPU 0 75 112ms 41 hours ago 310th GolfingSuccess 🇬🇷 0 76 133ms 28 Nov 2025 310th fuzzylojik-golf 🇺🇸 0 76 99ms 3 days ago 310th edsrzf 🇳🇿 0 76 131ms 2 days ago 310th emgordon154 0 76 115ms 2 days ago 310th MeWhenI 🇻🇦 0 76 98ms 33 hours ago 315th rucin93 🇵🇱 0 77 130ms 8 May 2025 315th ovs-code 🇩🇪 0 77 81ms 30 May 2025 315th Shanethegamer 🇺🇸 0 77 146ms 12 Nov 2025 315th edsrzf 🇳🇿 0 77 7ms 33 hours ago 315th GolfingSuccess 🇬🇷 0 77 8ms 31 hours ago 315th Steffan153 🇫🇮 0 77 7ms 8 hours ago First Prev 241–320 of 459 Next Last