Kolakoski Sequence 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 Card Number Validation Catalan Numbers Catalan’s Constant Christmas Trees Collatz 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 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 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 Transpose Sentence Trinomial Triangle United States Vampire Numbers Van Eck Sequence Zeckendorf Representation Zodiac Signs γ λ π τ φ √2 𝑒 Apéry’s Constant Binary Lambda Calculus Calendar Connect Four Continued Fractions Crossword CSS Colors (Inverse) CSS Grid Ellipse Perimeters Flags Floyd-Steinberg Dithering Gray Code Decoder Gray Code Encoder Hexagonal Spiral Highly Composite Numbers NFA Simulator Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Taxicab Numbers Tower of Hanoi Turtle Tutorial All Languages ><> 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 ALGOL 68 APL Arturo Befunge BQN CJam CoffeeScript Egel Fennel Harbour Hare Haxe Hush Hy iogii Knight Luau Odin Picat Qore Racket Rebol Rexx Scala Squirrel Stax Uiua Umka Vala Vyxal Bytes Chars Scoring Bytes Chars Language All ><> 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 ALGOL 68 APL Arturo Befunge BQN CJam CoffeeScript Egel Fennel Harbour Hare Haxe Hush Hy iogii Knight 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 Card Number Validation Catalan Numbers Catalan’s Constant Christmas Trees Collatz 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 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 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 Transpose Sentence Trinomial Triangle United States Vampire Numbers Van Eck Sequence Zeckendorf Representation Zodiac Signs γ λ π τ φ √2 𝑒 Experimental Hole Apéry’s Constant Binary Lambda Calculus Calendar Connect Four Continued Fractions Crossword CSS Colors (Inverse) CSS Grid Ellipse Perimeters Flags Floyd-Steinberg Dithering Gray Code Decoder Gray Code Encoder Hexagonal Spiral Highly Composite Numbers NFA Simulator Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Taxicab Numbers Tower of Hanoi Turtle Tutorial # Golfer Points Chars Time Submitted 598th nstearns96 🇬🇧 795 62 18ms 28 Nov 2022 598th adamnielson42 🇺🇸 795 62 11ms 10 Jan 2024 598th jbjd 795 62 37ms 2 Mar 2024 598th HumanoidCPU 795 62 12ms 3 Jun 2024 598th jacekwladzinski 795 62 11ms 4 Oct 2025 598th Mabeloid 🇳🇴 795 62 12ms 26 Oct 2025 607th Shanethegamer 🇺🇸 795 84 343ms 25 Sep 2025 608th TrueBoxGuy 795 95 122ms 24 Sep 2025 609th Shanethegamer 🇺🇸 795 108 261ms 26 Sep 2021 610th GrayJoKing 🇦🇺 794 86 9ms 15 Aug 2023 610th Shanethegamer 🇺🇸 794 86 11ms 11 Jan 2024 612th MichalMarsalek 🇨🇿 793 84 123ms 6 Jan 2023 613th emgordon154 792 67 3ms 22 Apr 2025 614th Shanethegamer 🇺🇸 792 1,038 109ms 15 Apr 2025 615th Salutations45 790 59 10ms 9 Jan 2025 616th clockworknazo 790 83 18ms 26 Sep 2022 617th ashtraypettingzoo 🇺🇸 789 19 2ms 3 Apr 2023 617th AlephSquirrel 789 19 2ms 19 days ago 619th MeWhenI 🇻🇦 789 63 107ms 16 Nov 2022 620th MeWhenI 🇻🇦 789 83 3ms 10 Sep 2022 621st kkoenig 788 109 276ms 5 Jan 2024 622nd prplz 🇦🇺 786 46 224ms 24 Jan 2021 622nd TimCurwick 🇺🇸 786 46 200ms 26 Jan 2021 622nd SirBogman 🇺🇸 786 46 208ms 2 Feb 2024 625th SirBogman 🇺🇸 786 91 47ms 3 Jun 2025 626th Yewzir 🇧🇪 784 82 104ms 28 Mar 2024 627th Shanethegamer 🇺🇸 783 76 322ms 13 Dec 2021 627th Yax42 🇫🇷 783 76 337ms 5 May 2025 629th nwellnhof 🇩🇪 782 38 143ms 21 Oct 2021 630th apourchot 782 63 18ms 13 Feb 2021 630th neihousaigaai 782 63 11ms 10 Apr 2021 630th lechevalier 782 63 10ms 9 Aug 2021 630th commandblockguy 🇺🇸 782 63 12ms 19 Sep 2022 630th fourth-bit 782 63 10ms 21 Nov 2022 630th FortuiteMan 🇫🇷 782 63 27ms 8 Sep 2023 630th ssbhatt4321 782 63 26ms 14 Oct 2023 630th dokutan 782 63 18ms 1 Apr 2025 638th janbehrens 🇩🇪 782 91 55ms 20 Nov 2022 638th snyderek 🇺🇸 782 91 53ms 21 Nov 2024 638th dokutan 782 91 56ms 18 Jul 2025 641st Waffle3z 780 54 36ms 19 Jan 2021 641st olivermrose 🇺🇸 780 54 34ms 28 Sep 2021 641st KatieLG 🇬🇧 780 54 41ms 9 Jan 2023 641st Andriamanitra 🇫🇮 780 54 43ms 20 Jul 2023 645th GrayJoKing 🇦🇺 780 68 2ms 21 Jan 2021 645th m-tkach 🇺🇦 780 68 2ms 25 Apr 2022 645th MeWhenI 🇻🇦 780 68 2ms 11 Nov 2022 648th DialFrost 🇸🇬 780 142 1,600ms 13 Sep 2025 649th MeWhenI 🇻🇦 779 88 416ms 28 Feb 2022 650th Shanethegamer 🇺🇸 778 106 34ms 20 Jan 2025 651st rak1507 🇬🇧 777 60 9ms 20 Jan 2021 651st Shanethegamer 🇺🇸 777 60 9ms 26 Sep 2021 651st duckyluuk 🇳🇱 777 60 9ms 4 Oct 2024 654th anter69 🇭🇺 776 59 982ms 24 Feb 2023 654th SirBogman 🇺🇸 776 59 1,208ms 10 Jun 2024 656th scpchicken 🇵🇼 774 48 3ms 15 Dec 2022 657th commandblockguy 🇺🇸 774 62 506ms 15 Jan 2024 657th HumanoidCPU 774 62 426ms 3 Jun 2024 659th ovs-code 🇩🇪 774 142 12ms 31 Mar 2023 660th GrayJoKing 🇦🇺 771 55 135ms 6 Aug 2024 661st Shanethegamer 🇺🇸 771 89 485ms 26 Jul 2023 662nd mousetail 🇳🇱 771 98 123ms 3 Oct 2024 663rd NewDefectus 🇮🇱 770 24 5ms 25 Oct 2021 664th MeWhenI 🇻🇦 770 47 210ms 28 Jan 2023 665th RDShah 770 64 11ms 17 Jan 2021 665th andre-lameirinhas 🇵🇹 770 64 10ms 22 Feb 2021 665th stertooy 🇧🇪 770 64 11ms 10 Jun 2024 665th Terobero 770 64 19ms 6 Sep 2024 665th moustave 770 64 10ms 5 May 2025 665th Code-Coder-coder 770 64 11ms 2 days ago 671st MeWhenI 🇻🇦 767 89 101ms 25 Dec 2022 672nd LostSyntax21 🇬🇧 766 55 41ms 2 Oct 2024 673rd retrohun 765 63 120ms 23 Jan 2023 674th Shanethegamer 🇺🇸 765 65 108ms 22 May 2021 675th lynn 765 78 159ms 16 Nov 2021 First Prev 601–675 of 1,855 Next Last