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 321 260 167ms 12 hours ago 562nd flekAI 320 190 19ms 3 days ago 563rd flekAI 317 190 189ms 3 days ago 564th flekAI 316 104 74ms 3 days ago 565th jusaka 313 176 8ms 12 hours ago 566th jusaka 308 137 213ms 11 hours ago 567th jusaka 304 198 187ms 10 hours ago 568th flekAI 304 208 4ms 3 days ago 569th Ripick 303 198 381ms 7 days ago 570th flekAI 300 120 524ms 3 days ago 571st jusaka 299 270 28ms 11 hours ago 572nd jusaka 298 269 7ms 10 hours ago 573rd jusaka 287 212 18ms 11 hours ago 574th jusaka 283 212 363ms 11 hours ago 575th jusaka 276 257 1,358ms 12 hours ago 576th flekAI 275 208 5ms 3 days ago 577th flekAI 271 97 148ms 3 days ago 578th jusaka 269 328 30ms 10 hours ago 579th jusaka 264 197 108ms 12 hours ago 580th jusaka 264 318 45ms 9 hours ago 581st jusaka 259 167 14ms 15 hours ago 582nd jusaka 258 210 528ms 12 hours ago 583rd jusaka 256 159 1,239ms 11 hours ago 584th flekAI 255 212 500ms 3 days ago 585th flekAI 239 164 6ms 3 days ago 586th jusaka 228 258 8ms 3 hours ago 587th dokutan 226 253 5ms 5 days ago 588th jusaka 220 348 1,340ms 12 hours ago 589th flekAI 217 387 42ms 3 days ago 590th flekAI 216 225 7ms 3 days ago 591st jusaka 210 320 6ms 7 hours ago 592nd jusaka 208 456 45ms 10 hours ago 593rd dokutan 207 371 67ms 5 days ago 594th jusaka 204 129 142ms 9 hours ago 595th jusaka 201 432 89ms 7 hours ago 596th jusaka 197 138 5ms 14 hours ago 597th jusaka 188 885 1,416ms 10 hours ago 598th jusaka 181 269 6ms 9 hours ago 599th jusaka 170 232 27ms 8 hours ago 600th dokutan 170 371 4ms 5 days ago 601st dokutan 154 395 21ms 5 days ago 602nd jusaka 142 638 130ms 113 mins ago 603rd darrenks 🇺🇸 0 6 50ms 22 days ago 603rd 2bular 0 6 45ms 22 days ago 603rd Natanaelel 🇸🇪 0 6 48ms 22 days ago 603rd plcc0 0 6 48ms 21 days ago 607th kg583 🇺🇸 0 9 921ms 14 May 2025 607th themoonisacheese 0 9 2,448ms 14 days ago 607th someCoder-a11y 0 9 214ms 55 mins ago 610th namelessiw 0 13 335ms 25 Oct 2025 611th AlephSquirrel 0 20 8ms 3 Dec 2025 611th ovs-code 🇩🇪 0 20 9ms 3 Dec 2025 613th AlephSquirrel 0 27 5ms 3 Dec 2025 613th ovs-code 🇩🇪 0 27 6ms 7 Dec 2025 615th ovs-code 🇩🇪 0 29 123ms 3 Dec 2025 616th Shanethegamer 🇺🇸 0 32 35ms 19 May 2025 617th KatieLG 🇬🇧 0 43 61ms 17 days ago 618th madex 🇩🇪 0 59 1,081ms 19 days ago 619th GolfingSuccess 🇬🇷 0 65 92ms 12 Jan 2026 620th Shanethegamer 🇺🇸 0 67 92ms 7 May 2025 621st GolfingSuccess 🇬🇷 0 71 23ms 12 Jan 2026 621st GolfingSuccess 🇬🇷 0 71 18ms 14 Jan 2026 623rd dokutan 0 74 81ms 8 Feb 2026 624th Matter1024 🇮🇳 0 101 60ms 4 days ago 625th edsrzf 🇳🇿 0 108 1,839ms 21 May 2025 626th btjones0 0 126 168ms 22 days ago 627th edsrzf 🇳🇿 0 136 4,774ms 19 May 2025 628th jusaka 0 143 1,601ms 12 hours ago 629th jusaka 0 163 79ms 8 hours ago 630th jusaka 0 166 13ms 8 hours ago 631st jusaka 0 209 5ms 5 hours ago 632nd jusaka 0 223 219ms 8 hours ago 633rd jusaka 0 247 63ms 116 mins ago 634th jusaka 0 280 11ms 5 hours ago 635th jusaka 0 283 149ms 4 hours ago 636th jusaka 0 354 248ms 7 hours ago 637th jusaka 0 355 8ms 4 hours ago 638th jusaka 0 476 75ms 5 hours ago 639th jusaka 0 489 8ms 4 hours ago First Prev 561–639 of 639