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 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 Bytes Time Submitted 641st MeWhenI 🇻🇦 802 88 457ms 28 Feb 2022 642nd Yewzir 🇧🇪 802 90 57ms 14 Oct 2023 643rd NewDefectus 🇮🇱 801 35 50ms 25 Jan 2022 644th emgordon154 800 98 72ms 22 hours ago 645th apourchot 798 63 21ms 13 Feb 2021 645th neihousaigaai 798 63 11ms 10 Apr 2021 645th lechevalier 798 63 12ms 9 Aug 2021 645th yzhs 🇩🇪 798 63 10ms 7 Jun 2022 645th commandz0 🇺🇸 798 63 14ms 19 Sep 2022 645th fourth-bit 798 63 12ms 21 Nov 2022 645th FortuiteMan 🇫🇷 798 63 27ms 8 Sep 2023 645th ssbhatt4321 798 63 27ms 14 Oct 2023 645th JOrE20 798 63 13ms 25 Feb 2026 654th Yax42 🇫🇷 798 77 424ms 5 May 2025 655th GrayJoKing 🇦🇺 798 86 10ms 15 Aug 2023 655th Shanethegamer 🇺🇸 798 86 11ms 11 Jan 2024 657th TrueBoxGuy 798 95 113ms 24 Sep 2025 658th DialFrost 🇸🇬 797 53 38ms 2 Feb 2023 658th SirBogman 🇺🇸 797 53 38ms 10 Jun 2024 660th primo-ppcg 🇹🇭 797 78 69ms 13 Oct 2023 661st tobeannouncd 797 82 124ms 8 Jan 2024 662nd MichalMarsalek 🇨🇿 796 84 117ms 6 Jan 2023 663rd m-ender 🇩🇪 796 91 161ms 23 Apr 2021 664th GrayJoKing 🇦🇺 795 68 2ms 21 Jan 2021 664th m-tkach 🇺🇦 795 68 2ms 25 Apr 2022 664th MeWhenI 🇻🇦 795 68 2ms 11 Nov 2022 667th SirBogman 🇺🇸 793 31 45ms 7 Oct 2022 668th Shanethegamer 🇺🇸 793 89 468ms 26 Jul 2023 669th janbehrens 🇩🇪 793 91 59ms 20 Nov 2022 669th snyderek 🇺🇸 793 91 56ms 21 Nov 2024 669th dokutan 793 91 58ms 18 Jul 2025 672nd MeWhenI 🇻🇦 792 63 154ms 16 Nov 2022 673rd MeWhenI 🇻🇦 792 83 3ms 10 Sep 2022 674th kkoenig 791 111 342ms 5 Jan 2024 675th Salutations45 790 59 11ms 9 Jan 2025 676th SirBogman 🇺🇸 790 91 38ms 3 Jun 2025 677th ashtraypettingzoo 🇺🇸 789 19 2ms 3 Apr 2023 677th AlephSquirrel 789 19 2ms 8 Nov 2025 679th prplz 🇦🇺 788 46 237ms 24 Jan 2021 679th TimCurwick 🇺🇸 788 46 217ms 26 Jan 2021 679th SirBogman 🇺🇸 788 46 219ms 2 Feb 2024 682nd Yewzir 🇧🇪 786 82 119ms 28 Mar 2024 683rd RDShah 785 64 12ms 17 Jan 2021 683rd andre-lameirinhas 🇵🇹 785 64 11ms 22 Feb 2021 683rd stertooy 🇧🇪 785 64 12ms 10 Jun 2024 683rd Terobero 785 64 21ms 6 Sep 2024 683rd moustave 785 64 12ms 5 May 2025 683rd Code-Coder-coder 785 64 13ms 25 Nov 2025 683rd Lv0Sys 🇵🇱 785 64 13ms 4 Dec 2025 683rd BrunoVisnadi 🇧🇷 785 64 35ms 42 hours ago 691st Shanethegamer 🇺🇸 784 63 386ms 2 Jul 2021 692nd Waffle3z 782 54 38ms 19 Jan 2021 692nd KatieLG 🇬🇧 782 54 37ms 9 Jan 2023 692nd Andriamanitra 🇫🇮 782 54 37ms 20 Jul 2023 695th Shanethegamer 🇺🇸 780 106 33ms 20 Jan 2025 696th SirBogman 🇺🇸 779 46 232ms 22 Oct 2021 697th anter69 🇭🇺 777 59 1,306ms 24 Feb 2023 697th SirBogman 🇺🇸 777 59 1,208ms 10 Jun 2024 697th MeWhenI 🇻🇦 777 59 1,074ms 15 Sep 2025 700th rak1507 🇬🇧 777 60 11ms 20 Jan 2021 700th Shanethegamer 🇺🇸 777 60 10ms 26 Sep 2021 700th duckyluuk 🇳🇱 777 60 10ms 4 Oct 2024 703rd commandz0 🇺🇸 776 62 523ms 15 Jan 2024 704th Shanethegamer 🇺🇸 776 93 57ms 12 Jan 2022 705th ovs-code 🇩🇪 776 142 11ms 31 Mar 2023 706th scpchicken 🇵🇼 775 48 3ms 15 Dec 2022 707th NewDefectus 🇮🇱 774 25 4ms 25 Oct 2021 708th mousetail 🇳🇱 774 98 123ms 3 Oct 2024 709th TobyBoyne 🇬🇧 773 65 11ms 21 Jan 2021 709th 77Tigers 773 65 33ms 1 Mar 2021 709th knutae 🇳🇴 773 65 12ms 29 Jun 2021 709th ehulinsky 🇺🇸 773 65 13ms 10 Nov 2021 709th guilhem-roy 🇫🇷 773 65 12ms 28 Feb 2022 709th martinnorling 🇸🇪 773 65 11ms 8 Mar 2022 709th fgrosshans 🇫🇷 773 65 11ms 12 Jul 2022 709th IshanPanpaliya 773 65 11ms 3 May 2023 709th nooberitess 773 65 12ms 8 Apr 2025 709th robin-scragg 773 65 16ms 21 Oct 2025 719th c0d3-4-F00d 🇩🇪 773 70 2ms 18 Mar 2022 719th Alex-x90 🇺🇸 773 70 2ms 6 Mar 2023 First Prev 641–720 of 2,054 Next Last