The Gray Code Decoder and Gray Code Encoder holes will go live in approximately 6 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 79th rucin93 🇵🇱 0 44 12ms 24 Feb 2025 79th error256 0 44 14ms 12 Apr 2025 79th GolfingSuccess 🇬🇷 0 44 9ms 8 May 2025 79th GolfingSuccess 🇬🇷 0 44 13ms 8 May 2025 79th Natanaelel 🇸🇪 0 44 12ms 8 May 2025 79th sean-niemann 🇺🇸 0 44 12ms 8 May 2025 79th edsrzf 🇳🇿 0 44 9ms 10 May 2025 79th 4atj 0 44 15ms 8 Jun 2025 79th lukegustafson 🇺🇸 0 44 12ms 16 Jun 2025 79th JOrE20 0 44 12ms 6 Dec 2025 79th AdrienHache 🇫🇷 0 44 60ms 5 Feb 2026 79th voytxt 🇨🇿 0 44 41ms 6 Feb 2026 79th Steffan153 🇫🇮 0 44 28ms 19 Feb 2026 79th CaedenHarper 🇨🇦 0 44 12ms 2 days ago 79th fuzzylojik-golf 🇺🇸 0 44 12ms 36 hours ago 79th fuzzylojik-golf 🇺🇸 0 44 9ms 36 hours ago 79th Yax42 🇫🇷 0 44 12ms 20 hours ago 79th helbling 🇨🇭 0 44 12ms 19 hours ago 79th HumanoidCPU 0 44 12ms 5 hours ago 79th emgordon154 0 44 16ms 12 mins ago 101st Andrey-Plotnikov 0 45 12ms 10 Jan 2025 101st saito-ta 🇯🇵 0 45 555ms 10 May 2025 101st XenThe 🇬🇧 0 45 14ms 15 Jul 2025 101st smclaughlin-cf 0 45 12ms 14 Oct 2025 101st albanian-laundromat 0 45 13ms 3 days ago 106th Shanethegamer 🇺🇸 0 46 377ms 26 Nov 2024 106th lyphyser 0 46 51ms 11 Feb 2025 106th Shanethegamer 🇺🇸 0 46 8ms 30 Apr 2025 106th GolfingSuccess 🇬🇷 0 46 7ms 8 May 2025 106th rucin93 🇵🇱 0 46 8ms 11 May 2025 106th edsrzf 🇳🇿 0 46 7ms 39 hours ago 112th LukeBridges 🇬🇧 0 47 12ms 24 hours ago 113th HumanoidCPU 0 48 1,424ms 3 hours ago 114th kg583 🇺🇸 0 50 470ms 1 Dec 2024 114th Shanethegamer 🇺🇸 0 50 471ms 10 Dec 2024 114th GolfingSuccess 🇬🇷 0 50 460ms 30 Dec 2024 114th ovs-code 🇩🇪 0 50 448ms 23 Feb 2025 114th pardouin 🇫🇷 0 50 433ms 24 Feb 2025 114th emgordon154 0 50 424ms 9 May 2025 114th Steffan153 🇫🇮 0 50 378ms 26 days ago 114th CaedenHarper 🇨🇦 0 50 733ms 3 days ago 114th Steffan153 🇫🇮 0 50 776ms 3 days ago 114th edsrzf 🇳🇿 0 50 872ms 3 days ago 114th GolfingSuccess 🇬🇷 0 50 765ms 2 days ago 114th fuzzylojik-golf 🇺🇸 0 50 420ms 39 hours ago 126th lifthrasiir 🇰🇷 0 51 433ms 11 Dec 2024 126th Shanethegamer 🇺🇸 0 51 5ms 30 Apr 2025 126th GolfingSuccess 🇬🇷 0 51 157ms 8 May 2025 126th rucin93 🇵🇱 0 51 159ms 8 May 2025 126th Shanethegamer 🇺🇸 0 51 150ms 8 May 2025 126th sean-niemann 🇺🇸 0 51 150ms 9 May 2025 126th DialFrost 🇸🇬 0 51 302ms 8 Sep 2025 126th albanian-laundromat 0 51 5ms 9 hours ago 134th DialFrost 🇸🇬 0 52 474ms 17 Feb 2025 134th CaedenHarper 🇨🇦 0 52 530ms 3 days ago 134th HumanoidCPU 0 52 394ms 16 hours ago 137th antimon2 🇯🇵 0 53 288ms 16 Dec 2024 137th Shanethegamer 🇺🇸 0 53 315ms 1 Feb 2025 137th dokutan 0 53 426ms 15 Aug 2025 137th MeWhenI 🇻🇦 0 53 393ms 21 Nov 2025 137th albanian-laundromat 0 53 467ms 15 Jan 2026 137th AlephSquirrel 0 53 383ms 2 days ago 143rd Shanethegamer 🇺🇸 0 54 69ms 12 Dec 2024 143rd DialFrost 🇸🇬 0 54 269ms 17 Feb 2025 143rd error256 0 54 66ms 12 Apr 2025 143rd albanian-laundromat 0 54 779ms 15 Jan 2026 143rd GolfingSuccess 🇬🇷 0 54 71ms 2 days ago 143rd dokutan 0 54 778ms 20 hours ago 143rd fuzzylojik-golf 🇺🇸 0 54 81ms 59 mins ago 150th albanian-laundromat 0 55 39ms 3 days ago 151st Shanethegamer 🇺🇸 0 56 66ms 30 Apr 2025 151st GolfingSuccess 🇬🇷 0 56 70ms 8 May 2025 151st sean-niemann 🇺🇸 0 56 67ms 8 May 2025 151st DialFrost 🇸🇬 0 56 2,628ms 16 Dec 2025 155th Shanethegamer 🇺🇸 0 57 326ms 25 May 2025 155th sean-niemann 🇺🇸 0 57 176ms 25 May 2025 155th edsrzf 🇳🇿 0 57 167ms 25 May 2025 155th GolfingSuccess 🇬🇷 0 57 171ms 13 Dec 2025 155th Matter1024 🇮🇳 0 57 68ms 13 Feb 2026 155th albanian-laundromat 0 57 296ms 2 days ago First Prev 81–160 of 382 Next Last