The Gray Code Decoder and Gray Code Encoder holes will go live in approximately 46 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 318th edsrzf 🇳🇿 0 71 14ms 8 May 2025 318th AlephSquirrel 0 71 13ms 9 May 2025 318th emgordon154 0 71 32ms 17 hours ago 324th Shanethegamer 🇺🇸 0 72 27ms 9 Dec 2024 324th dokutan 0 72 62ms 8 Feb 2026 326th GolfingSuccess 🇬🇷 0 73 16ms 8 May 2025 326th GolfingSuccess 🇬🇷 0 73 8ms 4 days ago 326th michelebastione 🇮🇹 0 73 402ms 5 hours ago 329th not-a-pokemon 0 74 15ms 4 days ago 330th Shanethegamer 🇺🇸 0 75 107ms 26 Nov 2024 330th sean-niemann 🇺🇸 0 75 106ms 8 May 2025 330th HumanoidCPU 0 75 110ms 4 days ago 330th MeWhenI 🇻🇦 0 75 102ms 2 days ago 334th GolfingSuccess 🇬🇷 0 76 133ms 28 Nov 2025 334th fuzzylojik-golf 🇺🇸 0 76 99ms 6 days ago 334th edsrzf 🇳🇿 0 76 131ms 5 days ago 334th emgordon154 0 76 115ms 4 days ago 334th fuzzylojik-golf 🇺🇸 0 76 8ms 45 mins ago 339th rucin93 🇵🇱 0 77 130ms 8 May 2025 339th ovs-code 🇩🇪 0 77 78ms 30 May 2025 339th Shanethegamer 🇺🇸 0 77 146ms 12 Nov 2025 339th edsrzf 🇳🇿 0 77 7ms 4 days ago 339th GolfingSuccess 🇬🇷 0 77 8ms 4 days ago 339th Steffan153 🇫🇮 0 77 7ms 3 days ago 345th saito-ta 🇯🇵 0 78 4ms 10 May 2025 345th rhdqor213 0 78 4ms 10 May 2025 345th albanian-laundromat 0 78 98ms 8 days ago 345th edsrzf 🇳🇿 0 78 425ms 4 days ago 349th GolfingSuccess 🇬🇷 0 79 79ms 14 May 2025 349th madex 🇩🇪 0 79 110ms 29 hours ago 351st sean-niemann 🇺🇸 0 80 455ms 8 May 2025 352nd kumavale 0 81 170ms 26 Nov 2025 352nd Matter1024 🇮🇳 0 81 45ms 14 Feb 2026 352nd albanian-laundromat 0 81 45ms 8 days ago 352nd fuzzylojik-golf 🇺🇸 0 81 9ms 4 days ago 352nd stefangimmillaro 0 81 44ms 3 days ago 352nd KasperKivimaeki 🇫🇮 0 81 4ms 2 days ago 358th GolfingSuccess 🇬🇷 0 82 502ms 8 May 2025 358th emgordon154 0 82 170ms 14 Feb 2026 358th emgordon154 0 82 452ms 4 days ago 358th edsrzf 🇳🇿 0 82 167ms 3 days ago 358th GolfingSuccess 🇬🇷 0 82 17ms 2 days ago 363rd Shanethegamer 🇺🇸 0 83 484ms 26 Nov 2024 363rd Shanethegamer 🇺🇸 0 83 403ms 9 Jul 2025 363rd fantaize 0 83 163ms 19 days ago 363rd GolfingSuccess 🇬🇷 0 83 33ms 4 days ago 363rd MeWhenI 🇻🇦 0 83 229ms 4 days ago 363rd KrausRaus 🇺🇸 0 83 13ms 2 days ago 363rd madex 🇩🇪 0 83 111ms 29 hours ago 370th Shanethegamer 🇺🇸 0 84 416ms 26 Nov 2024 370th ovs-code 🇩🇪 0 84 12ms 10 May 2025 370th fuzzylojik-golf 🇺🇸 0 84 444ms 6 days ago 370th dokutan 0 84 417ms 2 days ago 374th edsrzf 🇳🇿 0 85 42ms 8 May 2025 374th edsrzf 🇳🇿 0 85 17ms 9 May 2025 374th error256 0 85 18ms 10 May 2025 374th GolfingSuccess 🇬🇷 0 85 3ms 14 Jan 2026 374th HumanoidCPU 0 85 434ms 3 days ago 374th HumanoidCPU 0 85 419ms 2 days ago 374th madex 🇩🇪 0 85 72ms 30 hours ago 381st Shanethegamer 🇺🇸 0 86 158ms 17 Dec 2024 381st kg583 🇺🇸 0 86 39ms 16 Feb 2025 381st GolfingSuccess 🇬🇷 0 86 44ms 7 May 2025 381st GolfingSuccess 🇬🇷 0 86 2,577ms 8 May 2025 381st sean-niemann 🇺🇸 0 86 496ms 25 Sep 2025 381st MeWhenI 🇻🇦 0 86 381ms 21 Nov 2025 381st GolfingSuccess 🇬🇷 0 86 399ms 12 Jan 2026 381st elgan65536 🇺🇸 0 86 164ms 1 Mar 2026 381st CaedenHarper 🇨🇦 0 86 399ms 7 days ago 381st CaedenHarper 🇨🇦 0 86 154ms 7 days ago 381st edsrzf 🇳🇿 0 86 414ms 4 days ago 381st emgordon154 0 86 406ms 4 days ago 381st GolfingSuccess 🇬🇷 0 86 19ms 4 days ago 381st Steffan153 🇫🇮 0 86 390ms 3 days ago 381st Steffan153 🇫🇮 0 86 19ms 3 days ago 381st stefangimmillaro 0 86 154ms 2 days ago 397th Shanethegamer 🇺🇸 0 87 42ms 15 Apr 2025 397th Shanethegamer 🇺🇸 0 87 20ms 8 May 2025 397th albanian-laundromat 0 87 1,424ms 7 days ago 397th Yax42 🇫🇷 0 87 2,340ms 5 days ago First Prev 321–400 of 506 Next Last