The Gray Code Decoder and Gray Code Encoder holes will go live in approximately 2 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 320th dokutan 0 72 62ms 8 Feb 2026 322nd GolfingSuccess 🇬🇷 0 73 16ms 8 May 2025 322nd GolfingSuccess 🇬🇷 0 73 8ms 3 days ago 324th not-a-pokemon 0 74 15ms 3 days ago 325th Shanethegamer 🇺🇸 0 75 107ms 26 Nov 2024 325th sean-niemann 🇺🇸 0 75 106ms 8 May 2025 325th HumanoidCPU 0 75 110ms 3 days ago 325th MeWhenI 🇻🇦 0 75 102ms 46 hours ago 329th GolfingSuccess 🇬🇷 0 76 133ms 28 Nov 2025 329th fuzzylojik-golf 🇺🇸 0 76 99ms 5 days ago 329th edsrzf 🇳🇿 0 76 131ms 4 days ago 329th emgordon154 0 76 115ms 4 days ago 333rd rucin93 🇵🇱 0 77 130ms 8 May 2025 333rd ovs-code 🇩🇪 0 77 81ms 30 May 2025 333rd Shanethegamer 🇺🇸 0 77 146ms 12 Nov 2025 333rd edsrzf 🇳🇿 0 77 7ms 3 days ago 333rd GolfingSuccess 🇬🇷 0 77 8ms 3 days ago 333rd Steffan153 🇫🇮 0 77 7ms 2 days ago 339th saito-ta 🇯🇵 0 78 4ms 10 May 2025 339th rhdqor213 0 78 4ms 10 May 2025 339th albanian-laundromat 0 78 98ms 7 days ago 339th fuzzylojik-golf 🇺🇸 0 78 8ms 3 days ago 339th edsrzf 🇳🇿 0 78 425ms 3 days ago 344th GolfingSuccess 🇬🇷 0 79 79ms 14 May 2025 344th madex 🇩🇪 0 79 110ms 13 hours ago 346th sean-niemann 🇺🇸 0 80 455ms 8 May 2025 347th kumavale 0 81 170ms 26 Nov 2025 347th Matter1024 🇮🇳 0 81 45ms 14 Feb 2026 347th albanian-laundromat 0 81 45ms 7 days ago 347th fuzzylojik-golf 🇺🇸 0 81 9ms 3 days ago 347th stefangimmillaro 0 81 44ms 3 days ago 347th KasperKivimaeki 🇫🇮 0 81 5ms 34 hours ago 353rd GolfingSuccess 🇬🇷 0 82 502ms 8 May 2025 353rd emgordon154 0 82 170ms 14 Feb 2026 353rd emgordon154 0 82 452ms 4 days ago 353rd edsrzf 🇳🇿 0 82 167ms 3 days ago 353rd GolfingSuccess 🇬🇷 0 82 17ms 2 days ago 358th Shanethegamer 🇺🇸 0 83 484ms 26 Nov 2024 358th Shanethegamer 🇺🇸 0 83 403ms 9 Jul 2025 358th fantaize 0 83 163ms 18 days ago 358th GolfingSuccess 🇬🇷 0 83 33ms 4 days ago 358th MeWhenI 🇻🇦 0 83 229ms 3 days ago 358th KrausRaus 🇺🇸 0 83 13ms 39 hours ago 358th madex 🇩🇪 0 83 111ms 12 hours ago 365th Shanethegamer 🇺🇸 0 84 416ms 26 Nov 2024 365th ovs-code 🇩🇪 0 84 12ms 10 May 2025 365th fuzzylojik-golf 🇺🇸 0 84 444ms 5 days ago 365th dokutan 0 84 417ms 45 hours ago 369th edsrzf 🇳🇿 0 85 42ms 8 May 2025 369th edsrzf 🇳🇿 0 85 17ms 9 May 2025 369th error256 0 85 18ms 10 May 2025 369th GolfingSuccess 🇬🇷 0 85 3ms 14 Jan 2026 369th HumanoidCPU 0 85 434ms 3 days ago 369th HumanoidCPU 0 85 419ms 2 days ago 369th madex 🇩🇪 0 85 72ms 14 hours ago 376th Shanethegamer 🇺🇸 0 86 158ms 17 Dec 2024 376th kg583 🇺🇸 0 86 39ms 16 Feb 2025 376th GolfingSuccess 🇬🇷 0 86 44ms 7 May 2025 376th GolfingSuccess 🇬🇷 0 86 2,577ms 8 May 2025 376th sean-niemann 🇺🇸 0 86 496ms 25 Sep 2025 376th MeWhenI 🇻🇦 0 86 381ms 21 Nov 2025 376th GolfingSuccess 🇬🇷 0 86 399ms 12 Jan 2026 376th elgan65536 🇺🇸 0 86 184ms 1 Mar 2026 376th CaedenHarper 🇨🇦 0 86 399ms 7 days ago 376th CaedenHarper 🇨🇦 0 86 154ms 6 days ago 376th edsrzf 🇳🇿 0 86 414ms 4 days ago 376th emgordon154 0 86 406ms 3 days ago 376th GolfingSuccess 🇬🇷 0 86 19ms 3 days ago 376th Steffan153 🇫🇮 0 86 390ms 2 days ago 376th Steffan153 🇫🇮 0 86 19ms 2 days ago 376th stefangimmillaro 0 86 154ms 2 days ago 392nd Shanethegamer 🇺🇸 0 87 42ms 15 Apr 2025 392nd Shanethegamer 🇺🇸 0 87 20ms 8 May 2025 392nd albanian-laundromat 0 87 1,424ms 7 days ago 392nd Yax42 🇫🇷 0 87 2,340ms 4 days ago 392nd Steffan153 🇫🇮 0 87 180ms 2 days ago 392nd Steffan153 🇫🇮 0 87 4ms 2 days ago 392nd roelderickx 0 87 1,609ms 45 hours ago 399th kg583 🇺🇸 0 88 23ms 12 Feb 2026 399th fuzzylojik-golf 🇺🇸 0 88 154ms 5 days ago First Prev 321–400 of 500 Next Last