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 561st flekAI 347 169 457ms 3 days ago 562nd jusaka 346 165 140ms 21 hours ago 563rd flekAI 344 275 45ms 3 days ago 564th jusaka 338 169 4ms 27 hours ago 565th jusaka 336 117 1,355ms 25 hours ago 566th jusaka 325 203 120ms 25 hours ago 567th jusaka 322 100 52ms 28 hours ago 568th jusaka 321 260 167ms 26 hours ago 569th flekAI 320 190 19ms 3 days ago 570th flekAI 317 190 189ms 3 days ago 571st flekAI 316 104 74ms 3 days ago 572nd jusaka 313 176 8ms 25 hours ago 573rd jusaka 309 139 213ms 25 hours ago 574th jusaka 304 198 187ms 24 hours ago 575th flekAI 304 208 4ms 3 days ago 576th Ripick 303 198 381ms 8 days ago 577th flekAI 302 120 524ms 3 days ago 578th jusaka 299 270 28ms 24 hours ago 579th jusaka 298 269 7ms 24 hours ago 580th jusaka 287 212 18ms 25 hours ago 581st jusaka 283 212 363ms 25 hours ago 582nd jusaka 277 142 6ms 3 hours ago 583rd jusaka 277 210 528ms 25 hours ago 584th jusaka 276 257 1,358ms 25 hours ago 585th flekAI 275 208 5ms 3 days ago 586th flekAI 275 212 500ms 3 days ago 587th flekAI 271 97 148ms 3 days ago 588th jusaka 271 278 19ms 11 hours ago 589th jusaka 269 328 30ms 23 hours ago 590th jusaka 266 198 14ms 3 hours ago 591st jusaka 264 137 450ms 3 hours ago 592nd jusaka 264 197 108ms 26 hours ago 593rd jusaka 264 318 45ms 23 hours ago 594th jusaka 259 167 14ms 28 hours ago 595th jusaka 256 159 1,239ms 24 hours ago 596th jusaka 249 310 374ms 3 hours ago 597th flekAI 240 164 6ms 3 days ago 598th jusaka 228 258 8ms 17 hours ago 599th jusaka 226 155 65ms 20 hours ago 600th dokutan 226 253 5ms 5 days ago 601st jusaka 220 348 1,340ms 26 hours ago 602nd jusaka 220 946 21ms 3 hours ago 603rd flekAI 217 387 42ms 3 days ago 604th flekAI 216 225 7ms 3 days ago 605th jusaka 210 320 6ms 21 hours ago 606th jusaka 208 456 45ms 24 hours ago 607th dokutan 207 371 67ms 5 days ago 608th jusaka 204 129 142ms 22 hours ago 609th jusaka 201 432 89ms 21 hours ago 610th jusaka 197 138 5ms 28 hours ago 611th jusaka 193 374 21ms 3 hours ago 612th jusaka 188 885 1,416ms 24 hours ago 613th jusaka 182 139 41ms 3 hours ago 614th jusaka 181 269 6ms 22 hours ago 615th jusaka 175 281 66ms 10 hours ago 616th jusaka 170 232 27ms 22 hours ago 617th dokutan 170 371 4ms 5 days ago 618th dokutan 154 395 21ms 5 days ago 619th jusaka 142 638 130ms 15 hours ago 620th jusaka 3 89,003 620ms 3 hours ago 621st darrenks 🇺🇸 0 6 50ms 23 days ago 621st 2bular 0 6 45ms 23 days ago 621st Natanaelel 🇸🇪 0 6 48ms 22 days ago 621st plcc0 0 6 48ms 22 days ago 625th kg583 🇺🇸 0 10 896ms 8 May 2025 626th namelessiw 0 11 344ms 9 hours ago 627th someCoder-a11y 0 13 214ms 14 hours ago 628th themoonisacheese 0 14 2,448ms 15 days ago 629th AlephSquirrel 0 31 8ms 3 Dec 2025 629th ovs-code 🇩🇪 0 31 9ms 3 Dec 2025 631st AlephSquirrel 0 42 5ms 3 Dec 2025 631st ovs-code 🇩🇪 0 42 6ms 7 Dec 2025 633rd Shanethegamer 🇺🇸 0 52 168ms 7 Feb 2026 634th ovs-code 🇩🇪 0 53 123ms 30 May 2025 635th madex 🇩🇪 0 59 1,081ms 20 days ago 636th GolfingSuccess 🇬🇷 0 65 92ms 12 Jan 2026 637th Shanethegamer 🇺🇸 0 67 92ms 7 May 2025 638th GolfingSuccess 🇬🇷 0 71 23ms 12 Jan 2026 638th GolfingSuccess 🇬🇷 0 71 18ms 14 Jan 2026 640th KatieLG 🇬🇧 0 81 61ms 18 days ago First Prev 561–640 of 657 Next Last