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 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 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 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 Multitap Input NFA Simulator 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 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 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 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 Multitap Input NFA Simulator 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 601st Steffan153 🇫🇮 803 60 2ms 6 May 2023 602nd stefangimmillaro 803 80 97ms 23 Sep 2023 603rd emgordon154 803 85 7ms 3 Jan 2025 604th Shanethegamer 🇺🇸 803 94 119ms 25 Jan 2021 605th prplz 🇦🇺 802 83 119ms 10 Jul 2024 606th DaDerpDuck 801 76 2ms 20 Jan 2021 607th MeWhenI 🇻🇦 800 50 3ms 11 Nov 2022 608th GolfingSuccess 🇬🇷 800 69 7ms 24 Dec 2024 609th NewDefectus 🇮🇱 799 35 49ms 25 Jan 2022 610th MeWhenI 🇻🇦 799 88 416ms 28 Feb 2022 611th m-tkach 🇺🇦 799 89 52ms 25 Apr 2022 611th MeWhenI 🇻🇦 799 89 51ms 8 May 2022 613th SirBogman 🇺🇸 797 46 208ms 22 Oct 2021 614th apourchot 797 63 19ms 13 Feb 2021 614th neihousaigaai 797 63 11ms 10 Apr 2021 614th lechevalier 797 63 12ms 9 Aug 2021 614th yzhs 🇩🇪 797 63 10ms 7 Jun 2022 614th commandblockguy 🇺🇸 797 63 12ms 19 Sep 2022 614th fourth-bit 797 63 11ms 21 Nov 2022 614th FortuiteMan 🇫🇷 797 63 25ms 8 Sep 2023 614th ssbhatt4321 797 63 25ms 14 Oct 2023 622nd Yax42 🇫🇷 796 77 337ms 5 May 2025 623rd tobeannouncd 796 82 146ms 8 Jan 2024 624th DialFrost 🇸🇬 795 53 39ms 2 Feb 2023 624th SirBogman 🇺🇸 795 53 37ms 10 Jun 2024 626th TrueBoxGuy 795 95 122ms 24 Sep 2025 627th GrayJoKing 🇦🇺 794 68 2ms 21 Jan 2021 627th m-tkach 🇺🇦 794 68 2ms 25 Apr 2022 627th MeWhenI 🇻🇦 794 68 2ms 11 Nov 2022 630th GrayJoKing 🇦🇺 794 86 9ms 15 Aug 2023 630th Shanethegamer 🇺🇸 794 86 11ms 11 Jan 2024 632nd MichalMarsalek 🇨🇿 793 84 123ms 6 Jan 2023 633rd SirBogman 🇺🇸 791 31 48ms 7 Oct 2022 634th Salutations45 790 59 10ms 9 Jan 2025 635th Shanethegamer 🇺🇸 790 89 485ms 26 Jul 2023 636th Yewzir 🇧🇪 790 90 52ms 14 Oct 2023 637th ashtraypettingzoo 🇺🇸 789 19 2ms 3 Apr 2023 637th AlephSquirrel 789 19 2ms 8 Nov 2025 639th MeWhenI 🇻🇦 789 63 107ms 16 Nov 2022 640th MeWhenI 🇻🇦 789 83 3ms 10 Sep 2022 641st kkoenig 789 111 272ms 5 Jan 2024 642nd prplz 🇦🇺 786 46 224ms 24 Jan 2021 642nd TimCurwick 🇺🇸 786 46 200ms 26 Jan 2021 642nd SirBogman 🇺🇸 786 46 208ms 2 Feb 2024 645th SirBogman 🇺🇸 786 91 47ms 3 Jun 2025 646th RDShah 785 64 10ms 17 Jan 2021 646th andre-lameirinhas 🇵🇹 785 64 10ms 22 Feb 2021 646th stertooy 🇧🇪 785 64 10ms 10 Jun 2024 646th Terobero 785 64 18ms 6 Sep 2024 646th moustave 785 64 11ms 5 May 2025 646th Code-Coder-coder 785 64 12ms 11 days ago 646th Lv0Sys 🇵🇱 785 64 11ms 43 hours ago 653rd Yewzir 🇧🇪 784 82 100ms 28 Mar 2024 654th Shanethegamer 🇺🇸 782 63 367ms 2 Jul 2021 655th janbehrens 🇩🇪 782 91 56ms 20 Nov 2022 655th snyderek 🇺🇸 782 91 70ms 21 Nov 2024 655th dokutan 782 91 54ms 18 Jul 2025 658th Waffle3z 781 54 36ms 19 Jan 2021 658th KatieLG 🇬🇧 781 54 41ms 9 Jan 2023 658th Andriamanitra 🇫🇮 781 54 43ms 20 Jul 2023 661st DialFrost 🇸🇬 780 142 1,600ms 13 Sep 2025 662nd Shanethegamer 🇺🇸 778 106 34ms 20 Jan 2025 663rd rak1507 🇬🇧 777 60 9ms 20 Jan 2021 663rd Shanethegamer 🇺🇸 777 60 9ms 26 Sep 2021 663rd duckyluuk 🇳🇱 777 60 9ms 4 Oct 2024 666th anter69 🇭🇺 776 59 982ms 24 Feb 2023 666th SirBogman 🇺🇸 776 59 1,208ms 10 Jun 2024 668th NewDefectus 🇮🇱 774 25 5ms 25 Oct 2021 669th scpchicken 🇵🇼 774 48 3ms 15 Dec 2022 670th commandblockguy 🇺🇸 774 62 435ms 15 Jan 2024 671st ovs-code 🇩🇪 774 142 12ms 31 Mar 2023 672nd TobyBoyne 🇬🇧 773 65 11ms 21 Jan 2021 672nd 77Tigers 773 65 29ms 1 Mar 2021 672nd knutae 🇳🇴 773 65 12ms 29 Jun 2021 672nd ehulinsky 🇺🇸 773 65 13ms 10 Nov 2021 First Prev 601–675 of 1,881 Next Last