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 plcc0 654 26 6ms 18 days ago 562nd HumanoidCPU 645 108 13ms 17 days ago 563rd dokutan 645 140 316ms 16 days ago 564th albanian-laundromat 🇺🇸 643 99 343ms 22 days ago 565th GolfingSuccess 🇬🇷 643 111 109ms 18 days ago 566th BREMAUCY 🇫🇷 639 40 4ms 11 days ago 567th Shanethegamer 🇺🇸 635 136 315ms 26 Nov 2024 568th Natanaelel 🇸🇪 630 27 6ms 8 May 2025 569th FlorianCassayre 🇫🇷 629 84 19ms 30 hours ago 570th madex 🇩🇪 624 118 17ms 15 days ago 571st flekAI 623 59 1,297ms 16 hours ago 572nd HumanoidCPU 618 103 329ms 18 days ago 573rd emgordon154 617 71 32ms 15 days ago 574th Alex-x90 🇺🇸 611 114 4ms 29 hours ago 575th Shanethegamer 🇺🇸 610 46 279ms 26 Nov 2024 576th flekAI 609 51 44ms 15 hours ago 577th flekAI 605 46 113ms 21 hours ago 578th HumanoidCPU 602 59 278ms 13 days ago 579th madex 🇩🇪 601 106 334ms 15 days ago 580th flekAI 597 74 869ms 16 hours ago 581st madex 🇩🇪 593 130 345ms 17 days ago 582nd prestosilver 🇺🇸 592 115 411ms 20 days ago 583rd albanian-laundromat 🇺🇸 587 150 28ms 22 days ago 584th scpchicken 🇵🇼 586 29 7ms 8 days ago 585th not-a-pokemon 586 119 15ms 18 days ago 586th madex 🇩🇪 585 48 228ms 17 days ago 587th CaedenHarper 🇨🇦 580 129 452ms 22 days ago 588th retrohun 573 62 5ms 6 days ago 589th madex 🇩🇪 573 182 7ms 15 days ago 590th flekAI 572 115 705ms 16 hours ago 591st flekAI 569 123 223ms 16 hours ago 592nd madex 🇩🇪 563 121 366ms 15 days ago 593rd JOrE20 554 159 69ms 14 Feb 2026 594th flekAI 546 109 117ms 16 hours ago 595th flekAI 546 141 350ms 16 hours ago 596th snoozingnewt 🇨🇦 544 116 113ms 10 days ago 597th snydej 534 99 45ms 22 Nov 2024 598th emgordon154 529 150 15ms 9 May 2025 599th ComradeSquirrel 524 133 15ms 15 hours ago 600th madex 🇩🇪 507 112 1,333ms 15 days ago 601st flekAI 502 89 182ms 15 hours ago 602nd KrausRaus 🇺🇸 495 83 17ms 16 days ago 603rd albanian-laundromat 🇺🇸 492 57 272ms 21 days ago 604th HumanoidCPU 476 59 255ms 14 days ago 605th MeWhenI 🇻🇦 475 83 1,079ms 7 days ago 606th madex 🇩🇪 473 85 70ms 15 days ago 607th dokutan 473 158 73ms 17 days ago 608th CaedenHarper 🇨🇦 452 89 101ms 21 days ago 609th flekAI 448 142 345ms 16 hours ago 610th kasarino 444 157 12ms 18 days ago 611th madex 🇩🇪 443 204 32ms 15 days ago 612th RYSF13 🇨🇳 415 168 13ms 25 Jun 2025 613th flekAI 414 178 18ms 13 hours ago 614th emplv 🇱🇻 408 216 65ms 7 days ago 615th flekAI 406 146 473ms 16 hours ago 616th flekAI 403 141 1,463ms 16 hours ago 617th HumanoidCPU 374 200 421ms 17 days ago 618th flekAI 339 308 7ms 13 hours ago 619th flekAI 329 207 45ms 15 hours ago 620th Msleizak 🇫🇷 319 88 412ms 14 days ago 621st flekAI 315 216 380ms 16 hours ago 622nd flekAI 312 282 31ms 13 hours ago 623rd kasarino 307 175 56ms 25 hours ago 624th flekAI 289 97 446ms 16 hours ago 625th flekAI 288 227 7ms 15 hours ago 626th flekAI 270 234 116ms 15 hours ago 627th flekAI 259 155 83ms 16 hours ago 628th flekAI 252 315 17ms 16 hours ago 629th flekAI 250 279 4ms 16 hours ago 630th flekAI 229 327 453ms 16 hours ago 631st flekAI 221 161 5ms 15 hours ago 632nd flekAI 213 338 54ms 15 hours ago 633rd JOrE20 196 381 2,566ms 29 Dec 2025 634th flekAI 176 287 198ms 13 hours ago 635th CaedenHarper 🇨🇦 61 853 550ms 21 days ago 636th namelessiw 0 5 160ms 13 Oct 2025 636th Shanethegamer 🇺🇸 0 5 193ms 20 Oct 2025 636th GolfingSuccess 🇬🇷 0 5 156ms 13 Dec 2025 639th GolfingSuccess 🇬🇷 0 6 266ms 14 May 2025 639th kg583 🇺🇸 0 6 262ms 14 May 2025 First Prev 561–640 of 671 Next Last