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 208th madex 🇩🇪 0 62 15ms 7 days ago 208th CaedenHarper 🇨🇦 0 62 16ms 5 days ago 208th KatieLG 🇬🇧 0 62 17ms 3 days ago 208th KatieLG 🇬🇧 0 62 416ms 3 days ago 208th scpchicken 🇵🇼 0 62 15ms 3 days ago 208th fuzzylojik-golf 🇺🇸 0 62 15ms 3 days ago 208th StefanHabel 🇨🇦 0 62 15ms 3 days ago 208th Seek64 🇩🇪 0 62 15ms 3 days ago 208th blaztoma 🇱🇹 0 62 15ms 3 days ago 208th BREMAUCY 🇫🇷 0 62 16ms 3 days ago 208th Emutis 🇱🇹 0 62 16ms 3 days ago 208th Andrey2001 0 62 16ms 3 days ago 208th anter69 🇭🇺 0 62 15ms 2 days ago 208th HumanoidCPU 0 62 16ms 2 days ago 208th qpwoeirut 0 62 17ms 2 days ago 208th stefangimmillaro 0 62 16ms 2 days ago 208th btjones0 0 62 15ms 2 days ago 208th bzijlema 🇳🇱 0 62 16ms 2 days ago 208th ahmetdemirag 🇨🇾 0 62 15ms 2 days ago 208th plcc0 0 62 15ms 2 days ago 208th Pyroan 0 62 19ms 44 hours ago 208th edsrzf 🇳🇿 0 62 15ms 43 hours ago 208th zacjl 0 62 17ms 36 hours ago 208th MeWhenI 🇻🇦 0 62 86ms 35 hours ago 208th ComradeSquirrel 0 62 14ms 33 hours ago 208th duckyluuk 🇳🇱 0 62 15ms 27 hours ago 208th Aquateraneal 🇺🇸 0 62 15ms 16 hours ago 208th madex 🇩🇪 0 62 439ms 8 hours ago 208th madex 🇩🇪 0 62 1,125ms 8 hours ago 208th luuumine 🇫🇷 0 62 19ms 2 hours ago 271st sean-niemann 🇺🇸 0 63 43ms 8 May 2025 271st albanian-laundromat 0 63 44ms 14 Jan 2026 271st tomh1012 0 63 15ms 3 days ago 271st mishak-sys 0 63 15ms 26 hours ago 275th jameswmccarty 0 64 15ms 29 Mar 2025 275th albanian-laundromat 0 64 188ms 5 days ago 275th zgialor-lab 0 64 16ms 46 hours ago 278th JDiLenarda 🇫🇷 0 65 1,347ms 2 days ago 279th Shanethegamer 🇺🇸 0 66 1,317ms 26 Nov 2024 279th rucin93 🇵🇱 0 66 6ms 8 May 2025 279th sean-niemann 🇺🇸 0 66 7ms 8 May 2025 279th AdrienHache 🇫🇷 0 66 421ms 2 Nov 2025 279th namelessiw 0 66 474ms 2 Nov 2025 279th GolfingSuccess 🇬🇷 0 66 430ms 4 Feb 2026 279th albanian-laundromat 0 66 1,345ms 5 days ago 279th Yax42 🇫🇷 0 66 461ms 4 days ago 279th fuzzylojik-golf 🇺🇸 0 66 456ms 3 days ago 279th edsrzf 🇳🇿 0 66 7ms 2 days ago 279th edsrzf 🇳🇿 0 66 1,345ms 42 hours ago 279th edsrzf 🇳🇿 0 66 451ms 31 hours ago 279th Steffan153 🇫🇮 0 66 480ms 24 hours ago 279th Steffan153 🇫🇮 0 66 7ms 19 hours ago 293rd GolfingSuccess 🇬🇷 0 67 12ms 8 May 2025 293rd tomh1012 0 67 429ms 3 days ago 293rd msbranicky 0 67 16ms 4 hours ago 296th Shanethegamer 🇺🇸 0 68 145ms 26 Nov 2024 296th sean-niemann 🇺🇸 0 68 131ms 8 May 2025 296th edsrzf 🇳🇿 0 68 113ms 25 May 2025 296th GolfingSuccess 🇬🇷 0 68 110ms 4 days ago 296th fuzzylojik-golf 🇺🇸 0 68 1,320ms 2 days ago 296th Steffan153 🇫🇮 0 68 104ms 24 hours ago 302nd GolfingSuccess 🇬🇷 0 69 10ms 8 May 2025 302nd CaedenHarper 🇨🇦 0 69 486ms 4 days ago 302nd MeWhenI 🇻🇦 0 69 454ms 5 hours ago 305th JOrE20 0 70 41ms 13 Feb 2026 306th kg583 🇺🇸 0 71 27ms 1 Dec 2024 306th CLOStrophobic 🇮🇹 0 71 13ms 18 Jan 2025 306th GolfingSuccess 🇬🇷 0 71 14ms 7 May 2025 306th edsrzf 🇳🇿 0 71 14ms 8 May 2025 306th AlephSquirrel 0 71 13ms 9 May 2025 311th Shanethegamer 🇺🇸 0 72 27ms 9 Dec 2024 311th dokutan 0 72 62ms 8 Feb 2026 313th GolfingSuccess 🇬🇷 0 73 16ms 8 May 2025 313th GolfingSuccess 🇬🇷 0 73 8ms 42 hours ago 315th not-a-pokemon 0 74 15ms 2 days ago 316th Shanethegamer 🇺🇸 0 75 107ms 26 Nov 2024 316th sean-niemann 🇺🇸 0 75 106ms 8 May 2025 316th HumanoidCPU 0 75 110ms 2 days ago 316th MeWhenI 🇻🇦 0 75 102ms 6 hours ago 320th GolfingSuccess 🇬🇷 0 76 133ms 28 Nov 2025 First Prev 241–320 of 479 Next Last