Gray Code Decoder in all languages in chars. 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 Chars Time Submitted 561st jusaka 346 165 140ms 2 days ago 562nd flekAI 344 275 45ms 4 days ago 563rd jusaka 338 169 4ms 2 days ago 564th jusaka 336 117 1,598ms 2 days ago 565th jusaka 325 203 120ms 2 days ago 566th jusaka 322 100 52ms 2 days ago 567th jusaka 321 260 178ms 2 days ago 568th flekAI 320 190 19ms 4 days ago 569th flekAI 317 190 189ms 4 days ago 570th flekAI 316 104 74ms 5 days ago 571st jusaka 313 176 8ms 2 days ago 572nd jusaka 308 137 213ms 2 days ago 573rd jusaka 304 198 187ms 2 days ago 574th flekAI 304 208 4ms 5 days ago 575th Ripick 303 198 381ms 9 days ago 576th flekAI 302 120 524ms 5 days ago 577th jusaka 299 270 28ms 2 days ago 578th jusaka 298 269 7ms 2 days ago 579th jusaka 287 212 18ms 2 days ago 580th jusaka 283 212 363ms 2 days ago 581st jusaka 277 142 6ms 30 hours ago 582nd jusaka 276 257 1,358ms 2 days ago 583rd flekAI 275 208 5ms 4 days ago 584th flekAI 271 97 148ms 5 days ago 585th jusaka 271 278 19ms 38 hours ago 586th jusaka 269 328 30ms 2 days ago 587th jusaka 266 198 14ms 30 hours ago 588th jusaka 264 137 450ms 30 hours ago 589th jusaka 264 197 121ms 2 days ago 590th jusaka 264 318 45ms 2 days ago 591st jusaka 259 167 14ms 2 days ago 592nd jusaka 258 210 528ms 2 days ago 593rd jusaka 256 159 1,239ms 2 days ago 594th flekAI 255 212 500ms 5 days ago 595th jusaka 249 310 374ms 30 hours ago 596th flekAI 240 164 6ms 4 days ago 597th jusaka 228 258 8ms 43 hours ago 598th dokutan 226 253 5ms 7 days ago 599th jusaka 220 348 1,340ms 2 days ago 600th jusaka 220 946 21ms 30 hours ago 601st flekAI 217 387 42ms 4 days ago 602nd flekAI 216 225 7ms 5 days ago 603rd jusaka 210 320 6ms 47 hours ago 604th jusaka 208 456 45ms 2 days ago 605th dokutan 207 371 67ms 7 days ago 606th jusaka 204 129 142ms 2 days ago 607th jusaka 201 432 89ms 2 days ago 608th jusaka 197 138 5ms 2 days ago 609th jusaka 193 374 21ms 30 hours ago 610th jusaka 188 885 1,514ms 2 days ago 611th jusaka 182 139 41ms 30 hours ago 612th jusaka 181 269 6ms 2 days ago 613th jusaka 175 281 66ms 37 hours ago 614th jusaka 170 232 27ms 2 days ago 615th dokutan 170 371 4ms 7 days ago 616th dokutan 154 395 21ms 7 days ago 617th jusaka 142 638 130ms 41 hours ago 618th jusaka 3 89,003 620ms 30 hours ago 619th darrenks 🇺🇸 0 6 50ms 24 days ago 619th 2bular 0 6 45ms 24 days ago 619th Natanaelel 🇸🇪 0 6 48ms 24 days ago 619th plcc0 0 6 48ms 23 days ago 623rd kg583 🇺🇸 0 9 921ms 14 May 2025 623rd themoonisacheese 0 9 2,448ms 16 days ago 623rd someCoder-a11y 0 9 214ms 41 hours ago 623rd namelessiw 0 9 344ms 35 hours ago 627th AlephSquirrel 0 20 8ms 3 Dec 2025 627th ovs-code 🇩🇪 0 20 9ms 3 Dec 2025 629th AlephSquirrel 0 27 5ms 3 Dec 2025 629th ovs-code 🇩🇪 0 27 6ms 7 Dec 2025 631st ovs-code 🇩🇪 0 29 123ms 3 Dec 2025 632nd Shanethegamer 🇺🇸 0 32 35ms 19 May 2025 633rd KatieLG 🇬🇧 0 43 70ms 19 days ago 634th madex 🇩🇪 0 59 1,081ms 21 days ago 635th GolfingSuccess 🇬🇷 0 65 92ms 12 Jan 2026 636th Shanethegamer 🇺🇸 0 67 92ms 7 May 2025 637th GolfingSuccess 🇬🇷 0 71 23ms 12 Jan 2026 637th GolfingSuccess 🇬🇷 0 71 18ms 14 Jan 2026 639th dokutan 0 74 81ms 8 Feb 2026 640th Matter1024 🇮🇳 0 101 60ms 5 days ago First Prev 561–640 of 655 Next Last