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 ><> ALGOL 68 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 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 ><> ALGOL 68 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 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 639th MeWhenI 🇻🇦 795 68 2ms 11 Nov 2022 642nd primo-ppcg 🇹🇭 795 78 71ms 13 Oct 2023 643rd TrueBoxGuy 795 95 113ms 24 Sep 2025 644th GrayJoKing 🇦🇺 794 86 10ms 15 Aug 2023 644th Shanethegamer 🇺🇸 794 86 11ms 11 Jan 2024 646th m-ender 🇩🇪 794 91 153ms 23 Apr 2021 647th MichalMarsalek 🇨🇿 793 84 127ms 6 Jan 2023 648th SirBogman 🇺🇸 791 31 51ms 7 Oct 2022 649th janbehrens 🇩🇪 791 91 57ms 20 Nov 2022 649th snyderek 🇺🇸 791 91 53ms 21 Nov 2024 649th dokutan 791 91 55ms 18 Jul 2025 652nd Salutations45 790 59 10ms 9 Jan 2025 653rd Shanethegamer 🇺🇸 790 89 468ms 26 Jul 2023 654th ashtraypettingzoo 🇺🇸 789 19 2ms 3 Apr 2023 654th AlephSquirrel 789 19 2ms 8 Nov 2025 656th MeWhenI 🇻🇦 789 63 114ms 16 Nov 2022 657th MeWhenI 🇻🇦 789 83 3ms 10 Sep 2022 658th kkoenig 789 111 290ms 5 Jan 2024 659th prplz 🇦🇺 786 46 248ms 24 Jan 2021 659th TimCurwick 🇺🇸 786 46 238ms 26 Jan 2021 659th SirBogman 🇺🇸 786 46 254ms 2 Feb 2024 662nd SirBogman 🇺🇸 786 91 38ms 3 Jun 2025 663rd RDShah 785 64 11ms 17 Jan 2021 663rd andre-lameirinhas 🇵🇹 785 64 11ms 22 Feb 2021 663rd stertooy 🇧🇪 785 64 11ms 10 Jun 2024 663rd Terobero 785 64 20ms 6 Sep 2024 663rd moustave 785 64 12ms 5 May 2025 663rd Code-Coder-coder 785 64 11ms 25 Nov 2025 663rd Lv0Sys 🇵🇱 785 64 11ms 4 Dec 2025 670th Yewzir 🇧🇪 784 82 111ms 28 Mar 2024 671st Shanethegamer 🇺🇸 782 63 346ms 2 Jul 2021 672nd Waffle3z 781 54 37ms 19 Jan 2021 672nd KatieLG 🇬🇧 781 54 37ms 9 Jan 2023 672nd Andriamanitra 🇫🇮 781 54 38ms 20 Jul 2023 675th Shanethegamer 🇺🇸 778 106 33ms 20 Jan 2025 676th rak1507 🇬🇧 777 60 12ms 20 Jan 2021 676th Shanethegamer 🇺🇸 777 60 11ms 26 Sep 2021 676th duckyluuk 🇳🇱 777 60 9ms 4 Oct 2024 679th anter69 🇭🇺 776 59 1,306ms 24 Feb 2023 679th SirBogman 🇺🇸 776 59 1,208ms 10 Jun 2024 681st commandz0 🇺🇸 775 62 417ms 15 Jan 2024 682nd NewDefectus 🇮🇱 774 25 4ms 25 Oct 2021 683rd scpchicken 🇵🇼 774 48 3ms 15 Dec 2022 684th MeWhenI 🇻🇦 774 59 1,030ms 15 Sep 2025 685th Shanethegamer 🇺🇸 774 93 57ms 12 Jan 2022 686th ovs-code 🇩🇪 774 142 11ms 31 Mar 2023 687th TobyBoyne 🇬🇧 773 65 11ms 21 Jan 2021 687th 77Tigers 773 65 32ms 1 Mar 2021 687th knutae 🇳🇴 773 65 10ms 29 Jun 2021 687th ehulinsky 🇺🇸 773 65 13ms 10 Nov 2021 687th guilhem-roy 🇫🇷 773 65 12ms 28 Feb 2022 687th martinnorling 🇸🇪 773 65 10ms 8 Mar 2022 687th fgrosshans 🇫🇷 773 65 11ms 12 Jul 2022 687th IshanPanpaliya 773 65 11ms 3 May 2023 687th nooberitess 773 65 12ms 8 Apr 2025 687th robin-scragg 773 65 12ms 21 Oct 2025 687th Flekay 🇩🇪 773 65 14ms 9 days ago 698th c0d3-4-F00d 🇩🇪 772 70 2ms 18 Mar 2022 698th Alex-x90 🇺🇸 772 70 2ms 6 Mar 2023 698th dokutan 772 70 2ms 18 Jul 2025 701st mousetail 🇳🇱 771 98 121ms 3 Oct 2024 702nd MeWhenI 🇻🇦 770 47 231ms 28 Jan 2023 703rd LostSyntax21 🇬🇧 767 55 40ms 2 Oct 2024 704th MeWhenI 🇻🇦 767 89 103ms 25 Dec 2022 705th emgordon154 766 32 43ms 19 Oct 2025 706th retrohun 765 63 102ms 23 Jan 2023 707th Shanethegamer 🇺🇸 765 65 105ms 22 May 2021 708th lynn 765 78 151ms 16 Nov 2021 709th rucin93 🇵🇱 764 60 131ms 9 Aug 2024 710th Waffle3z 764 61 10ms 20 Jan 2021 710th didion0 🇺🇸 764 61 11ms 9 Feb 2021 710th KrausRaus 🇺🇸 764 61 10ms 19 Feb 2021 710th tayloia 🇬🇧 764 61 10ms 29 May 2022 714th MeWhenI 🇻🇦 764 108 27ms 7 Jun 2023 715th ScottHamper 762 90 502ms 30 Nov 2025 716th albanian-laundromat 761 60 1,139ms 1 Oct 2025 717th ArmaanAS 761 66 11ms 4 Apr 2021 717th quimey 761 66 10ms 23 Jun 2023 719th kcinnu 🇱🇹 760 146 1,731ms 17 May 2024 720th SirBogman 🇺🇸 759 86 115ms 24 Jan 2021 First Prev 641–720 of 1,925 Next Last