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 319th edsrzf 🇳🇿 0 76 131ms 3 days ago 319th emgordon154 0 76 115ms 2 days ago 323rd rucin93 🇵🇱 0 77 130ms 8 May 2025 323rd ovs-code 🇩🇪 0 77 81ms 30 May 2025 323rd Shanethegamer 🇺🇸 0 77 146ms 12 Nov 2025 323rd edsrzf 🇳🇿 0 77 7ms 41 hours ago 323rd GolfingSuccess 🇬🇷 0 77 8ms 40 hours ago 323rd Steffan153 🇫🇮 0 77 7ms 16 hours ago 329th saito-ta 🇯🇵 0 78 4ms 10 May 2025 329th rhdqor213 0 78 4ms 10 May 2025 329th albanian-laundromat 0 78 98ms 5 days ago 329th fuzzylojik-golf 🇺🇸 0 78 8ms 46 hours ago 329th edsrzf 🇳🇿 0 78 425ms 40 hours ago 334th GolfingSuccess 🇬🇷 0 79 79ms 14 May 2025 335th sean-niemann 🇺🇸 0 80 455ms 8 May 2025 336th kumavale 0 81 170ms 26 Nov 2025 336th Matter1024 🇮🇳 0 81 45ms 14 Feb 2026 336th albanian-laundromat 0 81 45ms 5 days ago 336th fuzzylojik-golf 🇺🇸 0 81 9ms 47 hours ago 336th stefangimmillaro 0 81 44ms 34 hours ago 341st GolfingSuccess 🇬🇷 0 82 502ms 8 May 2025 341st emgordon154 0 82 170ms 14 Feb 2026 341st emgordon154 0 82 454ms 2 days ago 341st edsrzf 🇳🇿 0 82 167ms 35 hours ago 341st GolfingSuccess 🇬🇷 0 82 17ms 9 hours ago 346th Shanethegamer 🇺🇸 0 83 484ms 26 Nov 2024 346th Shanethegamer 🇺🇸 0 83 403ms 9 Jul 2025 346th fantaize 0 83 163ms 16 days ago 346th GolfingSuccess 🇬🇷 0 83 33ms 2 days ago 346th MeWhenI 🇻🇦 0 83 229ms 2 days ago 351st Shanethegamer 🇺🇸 0 84 416ms 26 Nov 2024 351st ovs-code 🇩🇪 0 84 12ms 10 May 2025 351st fuzzylojik-golf 🇺🇸 0 84 444ms 3 days ago 351st KasperKivimaeki 🇫🇮 0 84 12ms 43 hours ago 351st emgordon154 0 84 29ms 12 hours ago 351st dokutan 0 84 417ms 2 hours ago 357th edsrzf 🇳🇿 0 85 42ms 8 May 2025 357th edsrzf 🇳🇿 0 85 18ms 9 May 2025 357th error256 0 85 18ms 10 May 2025 357th GolfingSuccess 🇬🇷 0 85 3ms 14 Jan 2026 357th HumanoidCPU 0 85 434ms 35 hours ago 357th HumanoidCPU 0 85 419ms 11 hours ago 363rd Shanethegamer 🇺🇸 0 86 158ms 17 Dec 2024 363rd kg583 🇺🇸 0 86 39ms 16 Feb 2025 363rd GolfingSuccess 🇬🇷 0 86 44ms 7 May 2025 363rd GolfingSuccess 🇬🇷 0 86 2,577ms 8 May 2025 363rd sean-niemann 🇺🇸 0 86 496ms 25 Sep 2025 363rd MeWhenI 🇻🇦 0 86 381ms 21 Nov 2025 363rd GolfingSuccess 🇬🇷 0 86 399ms 12 Jan 2026 363rd elgan65536 🇺🇸 0 86 184ms 26 days ago 363rd CaedenHarper 🇨🇦 0 86 399ms 5 days ago 363rd CaedenHarper 🇨🇦 0 86 154ms 4 days ago 363rd edsrzf 🇳🇿 0 86 414ms 2 days ago 363rd emgordon154 0 86 406ms 44 hours ago 363rd GolfingSuccess 🇬🇷 0 86 19ms 37 hours ago 363rd Steffan153 🇫🇮 0 86 390ms 21 hours ago 363rd Steffan153 🇫🇮 0 86 19ms 19 hours ago 363rd stefangimmillaro 0 86 154ms 6 hours ago 379th Shanethegamer 🇺🇸 0 87 42ms 15 Apr 2025 379th Shanethegamer 🇺🇸 0 87 20ms 8 May 2025 379th albanian-laundromat 0 87 1,424ms 5 days ago 379th Yax42 🇫🇷 0 87 2,340ms 2 days ago 379th Steffan153 🇫🇮 0 87 180ms 20 hours ago 379th Steffan153 🇫🇮 0 87 4ms 16 hours ago 379th roelderickx 0 87 1,609ms 2 hours ago 386th kg583 🇺🇸 0 88 23ms 12 Feb 2026 386th fuzzylojik-golf 🇺🇸 0 88 154ms 3 days ago 388th Shanethegamer 🇺🇸 0 89 341ms 6 May 2025 388th Shanethegamer 🇺🇸 0 89 511ms 24 Sep 2025 388th DialFrost 🇸🇬 0 89 367ms 21 Nov 2025 388th CaedenHarper 🇨🇦 0 89 103ms 4 days ago 388th madex 🇩🇪 0 89 174ms 14 hours ago 388th edsrzf 🇳🇿 0 89 334ms 5 hours ago 388th Yax42 🇫🇷 0 89 13ms 3 hours ago 388th dokutan 0 89 476ms 2 hours ago 396th namelessiw 0 92 504ms 10 Oct 2025 396th fuzzylojik-golf 🇺🇸 0 92 383ms 3 days ago 396th madex 🇩🇪 0 92 12ms 2 days ago 399th CaedenHarper 🇨🇦 0 93 13ms 5 days ago 400th DialFrost 🇸🇬 0 94 13ms 10 May 2025 First Prev 321–400 of 477 Next Last