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 m-ender 🇩🇪 794 91 153ms 23 Apr 2021 642nd MichalMarsalek 🇨🇿 793 84 127ms 6 Jan 2023 643rd SirBogman 🇺🇸 791 31 51ms 7 Oct 2022 644th janbehrens 🇩🇪 791 91 57ms 20 Nov 2022 644th snyderek 🇺🇸 791 91 53ms 21 Nov 2024 644th dokutan 791 91 55ms 18 Jul 2025 647th Salutations45 790 59 10ms 9 Jan 2025 648th Shanethegamer 🇺🇸 790 89 457ms 26 Jul 2023 649th ashtraypettingzoo 🇺🇸 789 19 2ms 3 Apr 2023 649th AlephSquirrel 789 19 2ms 8 Nov 2025 651st MeWhenI 🇻🇦 789 63 114ms 16 Nov 2022 652nd MeWhenI 🇻🇦 789 83 3ms 10 Sep 2022 653rd kkoenig 789 111 298ms 5 Jan 2024 654th prplz 🇦🇺 786 46 248ms 24 Jan 2021 654th TimCurwick 🇺🇸 786 46 238ms 26 Jan 2021 654th SirBogman 🇺🇸 786 46 254ms 2 Feb 2024 657th SirBogman 🇺🇸 786 91 38ms 3 Jun 2025 658th RDShah 785 64 12ms 17 Jan 2021 658th andre-lameirinhas 🇵🇹 785 64 11ms 22 Feb 2021 658th stertooy 🇧🇪 785 64 11ms 10 Jun 2024 658th Terobero 785 64 22ms 6 Sep 2024 658th moustave 785 64 12ms 5 May 2025 658th Code-Coder-coder 785 64 11ms 25 Nov 2025 658th Lv0Sys 🇵🇱 785 64 11ms 4 Dec 2025 665th Yewzir 🇧🇪 784 82 105ms 28 Mar 2024 666th Shanethegamer 🇺🇸 782 63 352ms 2 Jul 2021 667th Waffle3z 781 54 37ms 19 Jan 2021 667th KatieLG 🇬🇧 781 54 37ms 9 Jan 2023 667th Andriamanitra 🇫🇮 781 54 38ms 20 Jul 2023 670th Shanethegamer 🇺🇸 778 106 33ms 20 Jan 2025 671st rak1507 🇬🇧 777 60 10ms 20 Jan 2021 671st Shanethegamer 🇺🇸 777 60 9ms 26 Sep 2021 671st duckyluuk 🇳🇱 777 60 10ms 4 Oct 2024 674th anter69 🇭🇺 776 59 1,306ms 24 Feb 2023 674th SirBogman 🇺🇸 776 59 1,208ms 10 Jun 2024 676th commandz0 🇺🇸 775 62 417ms 15 Jan 2024 677th NewDefectus 🇮🇱 774 25 4ms 25 Oct 2021 678th scpchicken 🇵🇼 774 48 3ms 15 Dec 2022 679th Shanethegamer 🇺🇸 774 93 57ms 12 Jan 2022 680th ovs-code 🇩🇪 774 142 12ms 31 Mar 2023 681st TobyBoyne 🇬🇧 773 65 13ms 21 Jan 2021 681st 77Tigers 773 65 34ms 1 Mar 2021 681st knutae 🇳🇴 773 65 10ms 29 Jun 2021 681st ehulinsky 🇺🇸 773 65 15ms 10 Nov 2021 681st guilhem-roy 🇫🇷 773 65 12ms 28 Feb 2022 681st martinnorling 🇸🇪 773 65 11ms 8 Mar 2022 681st fgrosshans 🇫🇷 773 65 12ms 12 Jul 2022 681st IshanPanpaliya 773 65 11ms 3 May 2023 681st nooberitess 773 65 12ms 8 Apr 2025 681st robin-scragg 773 65 13ms 21 Oct 2025 691st MeWhenI 🇻🇦 772 59 1,030ms 15 Sep 2025 692nd c0d3-4-F00d 🇩🇪 772 70 2ms 18 Mar 2022 692nd Alex-x90 🇺🇸 772 70 2ms 6 Mar 2023 692nd dokutan 772 70 5ms 18 Jul 2025 695th mousetail 🇳🇱 771 98 111ms 3 Oct 2024 696th MeWhenI 🇻🇦 770 47 262ms 28 Jan 2023 697th LostSyntax21 🇬🇧 767 55 51ms 2 Oct 2024 698th MeWhenI 🇻🇦 767 89 103ms 25 Dec 2022 699th emgordon154 766 32 43ms 19 Oct 2025 700th retrohun 765 63 102ms 23 Jan 2023 701st Shanethegamer 🇺🇸 765 65 105ms 22 May 2021 702nd lynn 765 78 150ms 16 Nov 2021 703rd rucin93 🇵🇱 764 60 131ms 9 Aug 2024 704th Waffle3z 764 61 9ms 20 Jan 2021 704th didion0 🇺🇸 764 61 10ms 9 Feb 2021 704th KrausRaus 🇺🇸 764 61 11ms 19 Feb 2021 704th tayloia 🇬🇧 764 61 10ms 29 May 2022 708th MeWhenI 🇻🇦 764 108 27ms 7 Jun 2023 709th ScottHamper 762 90 502ms 30 Nov 2025 710th ArmaanAS 761 66 13ms 4 Apr 2021 710th quimey 761 66 10ms 23 Jun 2023 712th kcinnu 🇱🇹 760 146 1,731ms 17 May 2024 713th albanian-laundromat 759 60 1,556ms 1 Oct 2025 714th SirBogman 🇺🇸 759 86 115ms 24 Jan 2021 714th strout 759 86 124ms 15 Dec 2023 716th antimon2 🇯🇵 758 65 470ms 19 Jan 2021 717th GolfingSuccess 🇬🇷 758 71 6ms 16 Oct 2023 717th Yewzir 🇧🇪 758 71 3ms 19 Nov 2025 719th duckyluuk 🇳🇱 756 73 8ms 16 Dec 2024 720th janbehrens 🇩🇪 756 93 464ms 24 Mar 2022 First Prev 641–720 of 1,914 Next Last