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 317th AlephSquirrel 0 71 13ms 9 May 2025 317th emgordon154 0 71 32ms 13 hours ago 323rd Shanethegamer 🇺🇸 0 72 27ms 9 Dec 2024 323rd dokutan 0 72 62ms 8 Feb 2026 325th GolfingSuccess 🇬🇷 0 73 16ms 8 May 2025 325th GolfingSuccess 🇬🇷 0 73 8ms 4 days ago 325th michelebastione 🇮🇹 0 73 402ms 88 mins ago 328th not-a-pokemon 0 74 15ms 4 days ago 329th Shanethegamer 🇺🇸 0 75 107ms 26 Nov 2024 329th sean-niemann 🇺🇸 0 75 106ms 8 May 2025 329th HumanoidCPU 0 75 110ms 4 days ago 329th MeWhenI 🇻🇦 0 75 102ms 2 days ago 333rd GolfingSuccess 🇬🇷 0 76 133ms 28 Nov 2025 333rd fuzzylojik-golf 🇺🇸 0 76 99ms 5 days ago 333rd edsrzf 🇳🇿 0 76 131ms 5 days ago 333rd emgordon154 0 76 115ms 4 days ago 337th rucin93 🇵🇱 0 77 130ms 8 May 2025 337th ovs-code 🇩🇪 0 77 78ms 30 May 2025 337th Shanethegamer 🇺🇸 0 77 146ms 12 Nov 2025 337th edsrzf 🇳🇿 0 77 7ms 4 days ago 337th GolfingSuccess 🇬🇷 0 77 8ms 4 days ago 337th Steffan153 🇫🇮 0 77 7ms 3 days ago 343rd saito-ta 🇯🇵 0 78 4ms 10 May 2025 343rd rhdqor213 0 78 4ms 10 May 2025 343rd albanian-laundromat 0 78 98ms 7 days ago 343rd fuzzylojik-golf 🇺🇸 0 78 8ms 4 days ago 343rd edsrzf 🇳🇿 0 78 425ms 4 days ago 348th GolfingSuccess 🇬🇷 0 79 79ms 14 May 2025 348th madex 🇩🇪 0 79 110ms 26 hours ago 350th sean-niemann 🇺🇸 0 80 455ms 8 May 2025 351st kumavale 0 81 170ms 26 Nov 2025 351st Matter1024 🇮🇳 0 81 45ms 14 Feb 2026 351st albanian-laundromat 0 81 45ms 7 days ago 351st fuzzylojik-golf 🇺🇸 0 81 9ms 4 days ago 351st stefangimmillaro 0 81 44ms 3 days ago 351st KasperKivimaeki 🇫🇮 0 81 4ms 47 hours ago 357th GolfingSuccess 🇬🇷 0 82 502ms 8 May 2025 357th emgordon154 0 82 170ms 14 Feb 2026 357th emgordon154 0 82 452ms 4 days ago 357th edsrzf 🇳🇿 0 82 167ms 3 days ago 357th GolfingSuccess 🇬🇷 0 82 17ms 2 days ago 362nd Shanethegamer 🇺🇸 0 83 484ms 26 Nov 2024 362nd Shanethegamer 🇺🇸 0 83 403ms 9 Jul 2025 362nd fantaize 0 83 163ms 19 days ago 362nd GolfingSuccess 🇬🇷 0 83 33ms 4 days ago 362nd MeWhenI 🇻🇦 0 83 229ms 4 days ago 362nd KrausRaus 🇺🇸 0 83 13ms 2 days ago 362nd madex 🇩🇪 0 83 111ms 26 hours ago 369th Shanethegamer 🇺🇸 0 84 416ms 26 Nov 2024 369th ovs-code 🇩🇪 0 84 12ms 10 May 2025 369th fuzzylojik-golf 🇺🇸 0 84 444ms 5 days ago 369th dokutan 0 84 417ms 2 days ago 373rd edsrzf 🇳🇿 0 85 42ms 8 May 2025 373rd edsrzf 🇳🇿 0 85 17ms 9 May 2025 373rd error256 0 85 18ms 10 May 2025 373rd GolfingSuccess 🇬🇷 0 85 3ms 14 Jan 2026 373rd HumanoidCPU 0 85 434ms 3 days ago 373rd HumanoidCPU 0 85 419ms 2 days ago 373rd madex 🇩🇪 0 85 72ms 27 hours ago 380th Shanethegamer 🇺🇸 0 86 158ms 17 Dec 2024 380th kg583 🇺🇸 0 86 39ms 16 Feb 2025 380th GolfingSuccess 🇬🇷 0 86 44ms 7 May 2025 380th GolfingSuccess 🇬🇷 0 86 2,577ms 8 May 2025 380th sean-niemann 🇺🇸 0 86 496ms 25 Sep 2025 380th MeWhenI 🇻🇦 0 86 381ms 21 Nov 2025 380th GolfingSuccess 🇬🇷 0 86 399ms 12 Jan 2026 380th elgan65536 🇺🇸 0 86 164ms 1 Mar 2026 380th CaedenHarper 🇨🇦 0 86 399ms 7 days ago 380th CaedenHarper 🇨🇦 0 86 154ms 6 days ago 380th edsrzf 🇳🇿 0 86 414ms 4 days ago 380th emgordon154 0 86 406ms 4 days ago 380th GolfingSuccess 🇬🇷 0 86 19ms 3 days ago 380th Steffan153 🇫🇮 0 86 390ms 3 days ago 380th Steffan153 🇫🇮 0 86 19ms 3 days ago 380th stefangimmillaro 0 86 154ms 2 days ago 396th Shanethegamer 🇺🇸 0 87 42ms 15 Apr 2025 396th Shanethegamer 🇺🇸 0 87 20ms 8 May 2025 396th albanian-laundromat 0 87 1,424ms 7 days ago 396th Yax42 🇫🇷 0 87 2,340ms 5 days ago 396th Steffan153 🇫🇮 0 87 180ms 3 days ago First Prev 321–400 of 505 Next Last