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 HumanoidCPU 645 108 13ms 17 days ago 562nd dokutan 645 140 316ms 16 days ago 563rd albanian-laundromat 🇺🇸 643 99 343ms 22 days ago 564th GolfingSuccess 🇬🇷 643 111 109ms 18 days ago 565th BREMAUCY 🇫🇷 639 40 4ms 10 days ago 566th Shanethegamer 🇺🇸 635 136 315ms 26 Nov 2024 567th Natanaelel 🇸🇪 630 27 6ms 8 May 2025 568th FlorianCassayre 🇫🇷 629 84 19ms 27 hours ago 569th madex 🇩🇪 624 118 17ms 15 days ago 570th flekAI 623 59 1,297ms 13 hours ago 571st HumanoidCPU 618 103 329ms 18 days ago 572nd emgordon154 617 71 32ms 15 days ago 573rd Alex-x90 🇺🇸 611 114 4ms 25 hours ago 574th Shanethegamer 🇺🇸 610 46 279ms 26 Nov 2024 575th flekAI 609 51 44ms 11 hours ago 576th flekAI 605 46 113ms 17 hours ago 577th HumanoidCPU 602 59 278ms 13 days ago 578th madex 🇩🇪 601 106 334ms 15 days ago 579th flekAI 597 74 869ms 13 hours ago 580th madex 🇩🇪 593 130 345ms 17 days ago 581st prestosilver 🇺🇸 592 115 411ms 19 days ago 582nd albanian-laundromat 🇺🇸 587 150 28ms 22 days ago 583rd scpchicken 🇵🇼 586 29 7ms 8 days ago 584th not-a-pokemon 586 119 15ms 18 days ago 585th madex 🇩🇪 585 48 228ms 17 days ago 586th CaedenHarper 🇨🇦 580 129 452ms 22 days ago 587th retrohun 573 62 5ms 6 days ago 588th madex 🇩🇪 573 182 7ms 15 days ago 589th flekAI 572 115 705ms 13 hours ago 590th flekAI 569 123 223ms 13 hours ago 591st madex 🇩🇪 563 121 366ms 15 days ago 592nd JOrE20 554 159 69ms 14 Feb 2026 593rd flekAI 546 109 117ms 13 hours ago 594th flekAI 546 141 350ms 13 hours ago 595th snoozingnewt 🇨🇦 544 116 113ms 9 days ago 596th snydej 534 99 45ms 22 Nov 2024 597th emgordon154 529 150 15ms 9 May 2025 598th ComradeSquirrel 524 133 15ms 11 hours ago 599th madex 🇩🇪 507 112 1,333ms 15 days ago 600th flekAI 502 89 182ms 11 hours ago 601st KrausRaus 🇺🇸 495 83 17ms 16 days ago 602nd albanian-laundromat 🇺🇸 492 57 272ms 20 days ago 603rd HumanoidCPU 476 59 255ms 14 days ago 604th MeWhenI 🇻🇦 475 83 1,079ms 6 days ago 605th madex 🇩🇪 473 85 70ms 15 days ago 606th dokutan 473 158 73ms 17 days ago 607th CaedenHarper 🇨🇦 452 89 101ms 21 days ago 608th flekAI 448 142 345ms 13 hours ago 609th kasarino 444 157 12ms 18 days ago 610th madex 🇩🇪 443 204 32ms 15 days ago 611th RYSF13 🇨🇳 415 168 13ms 25 Jun 2025 612th flekAI 414 178 18ms 10 hours ago 613th emplv 🇱🇻 408 216 65ms 7 days ago 614th flekAI 406 146 473ms 13 hours ago 615th flekAI 403 141 1,463ms 13 hours ago 616th HumanoidCPU 374 200 421ms 17 days ago 617th flekAI 339 308 7ms 10 hours ago 618th flekAI 329 207 45ms 11 hours ago 619th Msleizak 🇫🇷 319 88 412ms 13 days ago 620th flekAI 315 216 380ms 13 hours ago 621st flekAI 312 282 31ms 10 hours ago 622nd kasarino 307 175 56ms 22 hours ago 623rd flekAI 289 97 446ms 13 hours ago 624th flekAI 288 227 7ms 11 hours ago 625th flekAI 270 234 116ms 11 hours ago 626th flekAI 259 155 83ms 13 hours ago 627th flekAI 252 315 17ms 13 hours ago 628th flekAI 250 279 4ms 13 hours ago 629th flekAI 229 327 453ms 13 hours ago 630th flekAI 221 161 5ms 11 hours ago 631st flekAI 213 338 54ms 11 hours ago 632nd JOrE20 196 381 2,566ms 29 Dec 2025 633rd flekAI 176 287 198ms 10 hours ago 634th CaedenHarper 🇨🇦 61 853 550ms 21 days ago 635th namelessiw 0 5 160ms 13 Oct 2025 635th Shanethegamer 🇺🇸 0 5 193ms 20 Oct 2025 635th GolfingSuccess 🇬🇷 0 5 156ms 13 Dec 2025 638th GolfingSuccess 🇬🇷 0 6 266ms 14 May 2025 638th kg583 🇺🇸 0 6 262ms 14 May 2025 638th JOrE20 0 6 275ms 27 Feb 2026 First Prev 561–640 of 670 Next Last