Gray Code Encoder 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 FlorianCassayre 🇫🇷 629 84 19ms 15 hours ago 562nd flekAI 623 59 1,297ms 2 hours ago 563rd HumanoidCPU 623 103 329ms 17 days ago 564th madex 🇩🇪 621 118 17ms 15 days ago 565th emgordon154 617 71 32ms 14 days ago 566th Alex-x90 🇺🇸 611 114 4ms 14 hours ago 567th Shanethegamer 🇺🇸 609 46 279ms 26 Nov 2024 568th flekAI 609 51 44ms 31 mins ago 569th madex 🇩🇪 606 106 334ms 15 days ago 570th flekAI 605 46 113ms 6 hours ago 571st HumanoidCPU 602 59 278ms 12 days ago 572nd flekAI 597 74 869ms 2 hours ago 573rd madex 🇩🇪 593 130 345ms 16 days ago 574th prestosilver 🇺🇸 590 115 411ms 19 days ago 575th scpchicken 🇵🇼 586 29 7ms 7 days ago 576th not-a-pokemon 586 119 15ms 18 days ago 577th madex 🇩🇪 584 48 228ms 16 days ago 578th albanian-laundromat 🇺🇸 583 150 28ms 21 days ago 579th CaedenHarper 🇨🇦 580 129 452ms 22 days ago 580th retrohun 573 62 5ms 6 days ago 581st flekAI 572 115 711ms 2 hours ago 582nd flekAI 569 123 236ms 2 hours ago 583rd madex 🇩🇪 568 182 7ms 15 days ago 584th madex 🇩🇪 561 121 366ms 15 days ago 585th JOrE20 550 159 69ms 14 Feb 2026 586th flekAI 546 109 136ms 2 hours ago 587th flekAI 546 141 366ms 2 hours ago 588th snoozingnewt 🇨🇦 544 116 113ms 9 days ago 589th snydej 534 99 45ms 22 Nov 2024 590th emgordon154 529 150 15ms 9 May 2025 591st ComradeSquirrel 524 133 15ms 21 mins ago 592nd madex 🇩🇪 507 112 1,333ms 15 days ago 593rd flekAI 502 89 182ms 31 mins ago 594th KrausRaus 🇺🇸 495 83 17ms 16 days ago 595th albanian-laundromat 🇺🇸 492 57 272ms 20 days ago 596th HumanoidCPU 475 59 255ms 13 days ago 597th MeWhenI 🇻🇦 475 83 1,079ms 6 days ago 598th madex 🇩🇪 473 85 70ms 15 days ago 599th dokutan 473 158 73ms 16 days ago 600th CaedenHarper 🇨🇦 452 89 101ms 20 days ago 601st flekAI 452 142 366ms 2 hours ago 602nd kasarino 444 157 12ms 18 days ago 603rd madex 🇩🇪 443 204 32ms 15 days ago 604th RYSF13 🇨🇳 415 168 13ms 25 Jun 2025 605th flekAI 406 146 473ms 2 hours ago 606th emplv 🇱🇻 405 216 65ms 7 days ago 607th flekAI 403 141 1,494ms 2 hours ago 608th HumanoidCPU 374 200 421ms 16 days ago 609th flekAI 329 207 45ms 31 mins ago 610th Msleizak 🇫🇷 319 88 412ms 13 days ago 611th flekAI 314 216 417ms 2 hours ago 612th kasarino 307 175 56ms 11 hours ago 613th flekAI 289 97 446ms 2 hours ago 614th flekAI 288 227 7ms 31 mins ago 615th flekAI 270 234 116ms 31 mins ago 616th flekAI 259 155 87ms 2 hours ago 617th flekAI 252 315 17ms 2 hours ago 618th flekAI 250 279 5ms 2 hours ago 619th flekAI 229 327 454ms 2 hours ago 620th flekAI 221 161 5ms 31 mins ago 621st flekAI 213 338 54ms 31 mins ago 622nd JOrE20 196 381 2,566ms 29 Dec 2025 623rd CaedenHarper 🇨🇦 61 853 550ms 21 days ago 624th namelessiw 0 5 160ms 13 Oct 2025 624th Shanethegamer 🇺🇸 0 5 193ms 20 Oct 2025 624th GolfingSuccess 🇬🇷 0 5 156ms 13 Dec 2025 627th GolfingSuccess 🇬🇷 0 6 266ms 14 May 2025 627th kg583 🇺🇸 0 6 262ms 14 May 2025 627th JOrE20 0 6 275ms 27 Feb 2026 630th Natanaelel 🇸🇪 0 7 59ms 2 May 2025 630th 2bular 0 7 55ms 2 May 2025 630th Shanethegamer 🇺🇸 0 7 57ms 30 May 2025 630th darrenks 🇺🇸 0 7 58ms 19 days ago 630th plcc0 0 7 58ms 17 days ago 635th ovs-code 🇩🇪 0 8 55ms 12 Oct 2025 636th themoonisacheese 0 10 1,011ms 13 days ago 637th GolfingSuccess 🇬🇷 0 13 158ms 8 May 2025 637th Shanethegamer 🇺🇸 0 13 148ms 30 May 2025 639th Shanethegamer 🇺🇸 0 25 10ms 1 Jun 2025 640th KatieLG 🇬🇧 0 31 17ms 16 days ago First Prev 561–640 of 659 Next Last