Kolakoski Sequence in all languages in chars. 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 Chars Time Submitted 399th OllieBoyne 🇬🇧 865 57 12ms 22 Jan 2021 399th hiddicop 🇸🇪 865 57 12ms 29 Jan 2021 399th lynn 865 57 15ms 6 Mar 2021 399th vezzick 865 57 11ms 8 Mar 2021 399th kops-cg 865 57 11ms 8 Apr 2021 399th clementblaudeau 865 57 11ms 1 Jun 2021 399th jared-hughes 865 57 12ms 14 Aug 2021 399th michelebastione 🇮🇹 865 57 14ms 16 Aug 2021 399th Indivicivet 865 57 11ms 26 Oct 2021 399th bricknellj 865 57 15ms 14 Jan 2022 399th scpchicken 🇵🇼 865 57 11ms 12 Mar 2022 399th pascscha 865 57 15ms 28 Apr 2022 399th jgygax 865 57 17ms 28 Apr 2022 399th stefangimmillaro 865 57 11ms 13 May 2022 399th ZakkkkAttackkkk 🇵🇭 865 57 15ms 31 Jul 2022 399th inventshah 865 57 11ms 19 Sep 2022 399th LogicalJoe 865 57 13ms 19 Sep 2022 399th lzahray 865 57 36ms 21 Oct 2022 399th thehylian 865 57 11ms 10 Jan 2023 399th 5cw 🇺🇸 865 57 11ms 10 Apr 2023 399th xsot 🇸🇬 865 57 25ms 26 Apr 2023 399th Rubiksmath 865 57 12ms 14 Aug 2023 399th bzijlema 🇳🇱 865 57 14ms 15 Nov 2023 399th janbehrens 🇩🇪 865 57 13ms 30 Dec 2023 399th mathisfun271 865 57 11ms 4 Feb 2024 399th thienudomsrirungruang 865 57 11ms 27 Apr 2024 399th wuzekai518 865 57 12ms 2 Aug 2024 399th bizy-coder 865 57 36ms 14 Aug 2024 399th michaelmgreer 865 57 11ms 9 Oct 2025 399th cros107 🇦🇺 865 57 15ms 31 Dec 2025 399th KasperKivimaeki 🇫🇮 865 57 14ms 3 Jan 2026 399th blaztoma 🇱🇹 865 57 12ms 11 Jan 2026 399th ryyyn 🇺🇸 865 57 36ms 21 Jan 2026 399th Flekay 🇩🇪 865 57 13ms 15 Feb 2026 399th JOrE20 865 57 14ms 25 Feb 2026 399th StefanHabel 🇨🇦 865 57 13ms 1 Mar 2026 399th jusaka 865 57 13ms 21 days ago 399th edsrzf 🇳🇿 865 57 12ms 17 days ago 439th janbehrens 🇩🇪 864 43 3ms 18 Jan 2021 440th DaCuteRaccoon 864 54 14ms 9 Dec 2022 441st DialFrost 🇸🇬 864 76 3ms 14 Sep 2024 442nd blaztoma 🇱🇹 863 46 6ms 11 Mar 2026 443rd edsrzf 🇳🇿 863 53 1,868ms 31 Aug 2025 443rd DialFrost 🇸🇬 863 53 1,059ms 1 Sep 2025 443rd xsot 🇸🇬 863 53 1,087ms 21 Dec 2025 446th error256 863 72 62ms 11 Dec 2025 447th snoozingnewt 🇨🇦 863 96 107ms 27 hours ago 447th edsrzf 🇳🇿 863 96 102ms 26 hours ago 449th bitsandbeyond 🇳🇱 862 42 276ms 27 Oct 2025 450th sisyphus-ppcg 🇦🇺 862 56 2ms 12 Jul 2022 451st GrayJoKing 🇦🇺 862 96 32ms 18 Jan 2023 451st lynn 862 96 39ms 6 Aug 2023 453rd frosster 🇨🇦 861 71 2ms 27 Jan 2026 454th GrayJoKing 🇦🇺 861 79 7ms 7 Mar 2026 454th emgordon154 861 79 13ms 8 Mar 2026 456th Lydxn 🇨🇦 860 100 25ms 13 Oct 2023 457th primo-ppcg 🇹🇭 860 195 11ms 2 Aug 2023 458th sean-niemann 🇺🇸 859 58 155ms 27 Apr 2024 459th DialFrost 🇸🇬 859 132 1,636ms 7 days ago 460th inventshah 858 83 66ms 17 Nov 2022 460th ovs-code 🇩🇪 858 83 55ms 3 Jun 2024 460th DialFrost 🇸🇬 858 83 61ms 7 Nov 2025 463rd Irratix 🇳🇱 857 62 2ms 20 Dec 2021 463rd ovs-code 🇩🇪 857 62 2ms 8 May 2023 463rd sean-niemann 🇺🇸 857 62 2ms 18 Dec 2023 466th MeWhenI 🇻🇦 857 78 473ms 7 Nov 2025 467th sean-niemann 🇺🇸 857 80 103ms 21 Sep 2023 467th Yewzir 🇧🇪 857 80 102ms 16 Nov 2023 469th Lydxn 🇨🇦 855 63 2ms 15 Jan 2024 469th JayXon 🇺🇸 855 63 2ms 29 Jan 2024 469th rucin93 🇵🇱 855 63 2ms 19 Nov 2025 472nd primo-ppcg 🇹🇭 855 78 124ms 27 Mar 2021 472nd Shanethegamer 🇺🇸 855 78 126ms 18 Mar 2023 472nd Ripick 855 78 123ms 2 Jun 2025 475th ovs-code 🇩🇪 855 138 1,217ms 17 Feb 2025 476th MeWhenI 🇻🇦 854 84 40ms 29 Apr 2025 477th Shanethegamer 🇺🇸 853 67 2,367ms 27 Oct 2024 478th GolfingSuccess 🇬🇷 853 106 4ms 18 days ago 479th MeWhenI 🇻🇦 852 65 7ms 24 Dec 2024 480th MeWhenI 🇻🇦 852 70 432ms 21 Nov 2021 First Prev 401–480 of 2,028 Next Last