Gray Code Decoder 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 Gray Code Decoder Gray Code Encoder 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 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 Gray Code Decoder Gray Code Encoder 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 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 160th Steffan153 🇫🇮 851 83 1,350ms 11 days ago 162nd madex 🇩🇪 849 67 9ms 16 days ago 163rd error256 849 98 155ms 16 Jan 2026 163rd edsrzf 🇳🇿 849 98 157ms 18 days ago 165th ovs-code 🇩🇪 848 46 11ms 16 days ago 165th emgordon154 848 46 11ms 15 days ago 165th Steffan153 🇫🇮 848 46 11ms 13 days ago 168th AlephSquirrel 848 76 38ms 3 Dec 2025 168th MeWhenI 🇻🇦 848 76 605ms 27 days ago 168th duckyluuk 🇳🇱 848 76 120ms 17 days ago 168th emgordon154 848 76 310ms 9 days ago 172nd Natanaelel 🇸🇪 847 38 41ms 8 May 2025 172nd ovs-code 🇩🇪 847 38 38ms 13 Jan 2026 172nd pardouin 🇫🇷 847 38 37ms 19 Feb 2026 172nd stefangimmillaro 847 38 42ms 8 days ago 176th GolfingSuccess 🇬🇷 847 69 402ms 14 Jan 2026 176th error256 847 69 398ms 21 days ago 176th Steffan153 🇫🇮 847 69 439ms 12 days ago 176th stefangimmillaro 847 69 398ms 11 days ago 180th lyphyser 845 41 59ms 18 days ago 181st GolfingSuccess 🇬🇷 845 49 33ms 12 Jan 2026 181st albanian-laundromat 🇺🇸 845 49 32ms 9 Mar 2026 181st MeWhenI 🇻🇦 845 49 33ms 18 days ago 184th GolfingSuccess 🇬🇷 845 51 36ms 12 Jan 2026 184th sean-niemann 🇺🇸 845 51 35ms 15 Jan 2026 184th Steffan153 🇫🇮 845 51 39ms 19 Feb 2026 184th Natanaelel 🇸🇪 845 51 35ms 19 days ago 184th voytxt 🇨🇿 845 51 34ms 11 days ago 184th weliveinhell 🇭🇹 845 51 32ms 19 hours ago 190th Steffan153 🇫🇮 845 69 7ms 11 days ago 191st GolfingSuccess 🇬🇷 845 85 28ms 14 Jan 2026 191st edsrzf 🇳🇿 845 85 28ms 18 days ago 193rd edsrzf 🇳🇿 844 48 818ms 18 days ago 194th DialFrost 🇸🇬 844 70 116ms 17 days ago 194th Steffan153 🇫🇮 844 70 2,152ms 12 days ago 196th error256 843 80 466ms 16 Jan 2026 197th ovs-code 🇩🇪 843 91 261ms 13 Dec 2025 197th error256 843 91 293ms 14 Jan 2026 197th GolfingSuccess 🇬🇷 843 91 272ms 14 Jan 2026 197th Natanaelel 🇸🇪 843 91 311ms 19 days ago 197th edsrzf 🇳🇿 843 91 292ms 12 days ago 197th Steffan153 🇫🇮 843 91 285ms 12 days ago 203rd Steffan153 🇫🇮 842 62 56ms 12 days ago 204th Yax42 🇫🇷 842 75 4ms 19 days ago 205th edsrzf 🇳🇿 842 94 6ms 18 days ago 205th albanian-laundromat 🇺🇸 842 94 6ms 17 days ago 205th sean-niemann 🇺🇸 842 94 6ms 13 days ago 205th Steffan153 🇫🇮 842 94 6ms 12 days ago 209th edsrzf 🇳🇿 841 78 110ms 12 days ago 209th Steffan153 🇫🇮 841 78 102ms 12 days ago 211th GolfingSuccess 🇬🇷 841 117 330ms 12 Jan 2026 211th Steffan153 🇫🇮 841 117 329ms 12 days ago 213th stefangimmillaro 840 99 194ms 12 days ago 213th Steffan153 🇫🇮 840 99 157ms 11 days ago 215th error256 839 55 2,436ms 15 Feb 2026 216th albanian-laundromat 🇺🇸 839 69 514ms 6 Dec 2025 217th error256 839 91 59ms 12 Jan 2026 217th Steffan153 🇫🇮 839 91 63ms 17 days ago 219th bitsandbeyond 🇳🇱 838 43 1,001ms 24 days ago 220th lifthrasiir 🇰🇷 837 77 186ms 11 Dec 2024 220th Shanethegamer 🇺🇸 837 77 18ms 13 Dec 2024 220th addmai 837 77 20ms 24 Jul 2025 220th hiichbindermax 837 77 18ms 17 Aug 2025 220th 5cw 🇺🇸 837 77 20ms 22 Aug 2025 220th davecame 837 77 142ms 25 Sep 2025 220th SirBogman 🇺🇸 837 77 244ms 13 Oct 2025 220th jtaxen 837 77 27ms 16 Oct 2025 220th albanian-laundromat 🇺🇸 837 77 23ms 25 Nov 2025 220th anter69 🇭🇺 837 77 147ms 4 Feb 2026 220th Matter1024 🇮🇳 837 77 19ms 12 Feb 2026 220th KasperKivimaeki 🇫🇮 837 77 589ms 16 Mar 2026 220th StefanHabel 🇨🇦 837 77 606ms 19 days ago 220th ahmetdemirag 🇨🇾 837 77 18ms 19 days ago 220th tomh1012 837 77 19ms 19 days ago 220th HumanoidCPU 837 77 246ms 19 days ago 220th qpwoeirut 837 77 19ms 18 days ago 220th btjones0 837 77 18ms 18 days ago 220th ComradeSquirrel 837 77 18ms 18 days ago 220th bzijlema 🇳🇱 837 77 19ms 18 days ago 220th Lv0Sys 🇵🇱 837 77 20ms 17 days ago First Prev 161–240 of 575 Next Last