Kolakoski Sequence in all languages in bytes. 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 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 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 Apéry’s Constant Binary Lambda Calculus 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 Numbrix Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Taxicab Numbers 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 ArkScript 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 ><> 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 ArkScript 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 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 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 Apéry’s Constant Binary Lambda Calculus 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 Numbrix Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Taxicab Numbers Turtle Tutorial # Golfer Points Bytes Time Submitted 641st primo-ppcg 🇹🇭 795 78 71ms 13 Oct 2023 642nd TrueBoxGuy 795 95 121ms 24 Sep 2025 643rd GrayJoKing 🇦🇺 794 86 9ms 15 Aug 2023 643rd Shanethegamer 🇺🇸 794 86 10ms 11 Jan 2024 645th m-ender 🇩🇪 794 91 153ms 23 Apr 2021 646th MichalMarsalek 🇨🇿 793 84 127ms 6 Jan 2023 647th SirBogman 🇺🇸 791 31 51ms 7 Oct 2022 648th janbehrens 🇩🇪 791 91 57ms 20 Nov 2022 648th snyderek 🇺🇸 791 91 53ms 21 Nov 2024 648th dokutan 791 91 55ms 18 Jul 2025 651st Salutations45 790 59 10ms 9 Jan 2025 652nd Shanethegamer 🇺🇸 790 89 473ms 26 Jul 2023 653rd ashtraypettingzoo 🇺🇸 789 19 2ms 3 Apr 2023 653rd AlephSquirrel 789 19 2ms 8 Nov 2025 655th MeWhenI 🇻🇦 789 63 114ms 16 Nov 2022 656th MeWhenI 🇻🇦 789 83 3ms 10 Sep 2022 657th kkoenig 789 111 290ms 5 Jan 2024 658th prplz 🇦🇺 786 46 248ms 24 Jan 2021 658th TimCurwick 🇺🇸 786 46 238ms 26 Jan 2021 658th SirBogman 🇺🇸 786 46 254ms 2 Feb 2024 661st SirBogman 🇺🇸 786 91 38ms 3 Jun 2025 662nd RDShah 785 64 12ms 17 Jan 2021 662nd andre-lameirinhas 🇵🇹 785 64 11ms 22 Feb 2021 662nd stertooy 🇧🇪 785 64 11ms 10 Jun 2024 662nd Terobero 785 64 22ms 6 Sep 2024 662nd moustave 785 64 12ms 5 May 2025 662nd Code-Coder-coder 785 64 11ms 25 Nov 2025 662nd Lv0Sys 🇵🇱 785 64 11ms 4 Dec 2025 669th Yewzir 🇧🇪 784 82 113ms 28 Mar 2024 670th Shanethegamer 🇺🇸 782 63 349ms 2 Jul 2021 671st Waffle3z 781 54 37ms 19 Jan 2021 671st KatieLG 🇬🇧 781 54 37ms 9 Jan 2023 671st Andriamanitra 🇫🇮 781 54 38ms 20 Jul 2023 674th Shanethegamer 🇺🇸 778 106 33ms 20 Jan 2025 675th rak1507 🇬🇧 777 60 10ms 20 Jan 2021 675th Shanethegamer 🇺🇸 777 60 10ms 26 Sep 2021 675th duckyluuk 🇳🇱 777 60 10ms 4 Oct 2024 678th anter69 🇭🇺 776 59 1,306ms 24 Feb 2023 678th SirBogman 🇺🇸 776 59 1,208ms 10 Jun 2024 680th commandz0 🇺🇸 775 62 417ms 15 Jan 2024 681st NewDefectus 🇮🇱 774 25 4ms 25 Oct 2021 682nd scpchicken 🇵🇼 774 48 3ms 15 Dec 2022 683rd MeWhenI 🇻🇦 774 59 1,030ms 15 Sep 2025 684th Shanethegamer 🇺🇸 774 93 57ms 12 Jan 2022 685th ovs-code 🇩🇪 774 142 12ms 31 Mar 2023 686th TobyBoyne 🇬🇧 773 65 13ms 21 Jan 2021 686th 77Tigers 773 65 34ms 1 Mar 2021 686th knutae 🇳🇴 773 65 10ms 29 Jun 2021 686th ehulinsky 🇺🇸 773 65 15ms 10 Nov 2021 686th guilhem-roy 🇫🇷 773 65 12ms 28 Feb 2022 686th martinnorling 🇸🇪 773 65 11ms 8 Mar 2022 686th fgrosshans 🇫🇷 773 65 12ms 12 Jul 2022 686th IshanPanpaliya 773 65 11ms 3 May 2023 686th nooberitess 773 65 12ms 8 Apr 2025 686th robin-scragg 773 65 13ms 21 Oct 2025 686th Flekay 🇩🇪 773 65 14ms 16 hours ago 697th c0d3-4-F00d 🇩🇪 772 70 2ms 18 Mar 2022 697th Alex-x90 🇺🇸 772 70 2ms 6 Mar 2023 697th dokutan 772 70 5ms 18 Jul 2025 700th mousetail 🇳🇱 771 98 123ms 3 Oct 2024 701st MeWhenI 🇻🇦 770 47 262ms 28 Jan 2023 702nd LostSyntax21 🇬🇧 767 55 51ms 2 Oct 2024 703rd MeWhenI 🇻🇦 767 89 103ms 25 Dec 2022 704th emgordon154 766 32 43ms 19 Oct 2025 705th retrohun 765 63 102ms 23 Jan 2023 706th Shanethegamer 🇺🇸 765 65 105ms 22 May 2021 707th lynn 765 78 150ms 16 Nov 2021 708th rucin93 🇵🇱 764 60 131ms 9 Aug 2024 709th Waffle3z 764 61 9ms 20 Jan 2021 709th didion0 🇺🇸 764 61 10ms 9 Feb 2021 709th KrausRaus 🇺🇸 764 61 11ms 19 Feb 2021 709th tayloia 🇬🇧 764 61 10ms 29 May 2022 713th MeWhenI 🇻🇦 764 108 27ms 7 Jun 2023 714th ScottHamper 762 90 502ms 30 Nov 2025 715th albanian-laundromat 761 60 1,556ms 1 Oct 2025 716th ArmaanAS 761 66 13ms 4 Apr 2021 716th quimey 761 66 10ms 23 Jun 2023 718th kcinnu 🇱🇹 760 146 1,731ms 17 May 2024 719th SirBogman 🇺🇸 759 86 115ms 24 Jan 2021 719th strout 759 86 124ms 15 Dec 2023 First Prev 641–720 of 1,919 Next Last