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 338 169 4ms 23 hours ago 562nd jusaka 336 117 1,355ms 21 hours ago 563rd jusaka 325 203 120ms 21 hours ago 564th jusaka 322 100 52ms 24 hours ago 565th jusaka 321 260 167ms 22 hours ago 566th flekAI 320 190 19ms 3 days ago 567th flekAI 317 190 189ms 3 days ago 568th flekAI 316 104 74ms 3 days ago 569th jusaka 313 176 8ms 22 hours ago 570th jusaka 308 137 213ms 21 hours ago 571st jusaka 304 198 187ms 20 hours ago 572nd flekAI 304 208 4ms 3 days ago 573rd Ripick 303 198 381ms 7 days ago 574th flekAI 302 120 524ms 3 days ago 575th jusaka 299 270 28ms 21 hours ago 576th jusaka 298 269 7ms 20 hours ago 577th jusaka 287 212 18ms 21 hours ago 578th jusaka 283 212 363ms 21 hours ago 579th jusaka 277 142 6ms 16 mins ago 580th jusaka 276 257 1,358ms 22 hours ago 581st flekAI 275 208 5ms 3 days ago 582nd flekAI 271 97 148ms 3 days ago 583rd jusaka 271 278 22ms 8 hours ago 584th jusaka 269 328 30ms 20 hours ago 585th jusaka 266 198 14ms 18 mins ago 586th jusaka 264 137 450ms 18 mins ago 587th jusaka 264 197 108ms 22 hours ago 588th jusaka 264 318 45ms 19 hours ago 589th jusaka 259 167 14ms 25 hours ago 590th jusaka 258 210 528ms 22 hours ago 591st jusaka 256 159 1,239ms 21 hours ago 592nd flekAI 255 212 500ms 3 days ago 593rd jusaka 249 310 374ms 16 mins ago 594th flekAI 240 164 6ms 3 days ago 595th jusaka 228 258 8ms 13 hours ago 596th dokutan 226 253 5ms 5 days ago 597th jusaka 220 348 1,340ms 23 hours ago 598th jusaka 220 946 21ms 14 mins ago 599th flekAI 217 387 42ms 3 days ago 600th flekAI 216 225 7ms 3 days ago 601st jusaka 210 320 6ms 17 hours ago 602nd jusaka 208 456 45ms 20 hours ago 603rd dokutan 207 371 67ms 5 days ago 604th jusaka 204 129 142ms 19 hours ago 605th jusaka 201 432 89ms 17 hours ago 606th jusaka 197 138 5ms 24 hours ago 607th jusaka 193 374 21ms 18 mins ago 608th jusaka 188 885 1,416ms 20 hours ago 609th jusaka 182 139 41ms 14 mins ago 610th jusaka 181 269 6ms 19 hours ago 611th jusaka 175 281 66ms 7 hours ago 612th jusaka 170 232 27ms 18 hours ago 613th dokutan 170 371 4ms 5 days ago 614th dokutan 154 395 21ms 5 days ago 615th jusaka 142 638 130ms 11 hours ago 616th jusaka 3 89,003 620ms 12 mins ago 617th darrenks 🇺🇸 0 6 50ms 22 days ago 617th 2bular 0 6 45ms 22 days ago 617th Natanaelel 🇸🇪 0 6 48ms 22 days ago 617th plcc0 0 6 48ms 22 days ago 621st kg583 🇺🇸 0 9 921ms 14 May 2025 621st themoonisacheese 0 9 2,448ms 15 days ago 621st someCoder-a11y 0 9 214ms 11 hours ago 621st namelessiw 0 9 344ms 5 hours ago 625th AlephSquirrel 0 20 8ms 3 Dec 2025 625th ovs-code 🇩🇪 0 20 9ms 3 Dec 2025 627th AlephSquirrel 0 27 5ms 3 Dec 2025 627th ovs-code 🇩🇪 0 27 6ms 7 Dec 2025 629th ovs-code 🇩🇪 0 29 123ms 3 Dec 2025 630th Shanethegamer 🇺🇸 0 32 35ms 19 May 2025 631st KatieLG 🇬🇧 0 43 61ms 18 days ago 632nd madex 🇩🇪 0 59 1,081ms 20 days ago 633rd GolfingSuccess 🇬🇷 0 65 92ms 12 Jan 2026 634th Shanethegamer 🇺🇸 0 67 92ms 7 May 2025 635th GolfingSuccess 🇬🇷 0 71 23ms 12 Jan 2026 635th GolfingSuccess 🇬🇷 0 71 18ms 14 Jan 2026 637th dokutan 0 74 81ms 8 Feb 2026 638th Matter1024 🇮🇳 0 101 60ms 4 days ago 639th edsrzf 🇳🇿 0 108 1,839ms 21 May 2025 640th btjones0 0 126 168ms 22 days ago First Prev 561–640 of 653 Next Last