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 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 Chars Time Submitted 320th GrayJoKing 🇦🇺 880 25 33ms 15 Feb 2022 320th jared-hughes 880 25 33ms 21 Apr 2022 320th rak1507 🇬🇧 880 25 33ms 28 Jan 2023 320th bstrat 880 25 35ms 15 Jul 2024 325th DialFrost 🇸🇬 880 52 193ms 7 Jan 2024 325th Steffan153 🇫🇮 880 52 204ms 26 Feb 2024 325th sean-niemann 🇺🇸 880 52 228ms 27 Jun 2025 328th schachmattmatt 880 56 11ms 18 Aug 2021 328th MeWhenI 🇻🇦 880 56 31ms 22 Oct 2021 328th Irratix 🇳🇱 880 56 12ms 19 Apr 2022 328th tri1212 🇻🇳 880 56 12ms 18 Jul 2022 328th fredrik-bakke 🇳🇴 880 56 11ms 29 Sep 2022 328th neel11235813 880 56 32ms 21 Dec 2022 328th sisyphus-ppcg 🇦🇺 880 56 32ms 23 Mar 2023 328th elgan65536 🇺🇸 880 56 11ms 31 Mar 2024 328th HETHAT 🇩🇿 880 56 12ms 12 Apr 2024 328th wh3n3v3r 🇨🇿 880 56 13ms 12 Nov 2024 338th JayXon 🇺🇸 880 73 109ms 15 Oct 2022 338th Steffan153 🇫🇮 880 73 114ms 7 Dec 2022 338th sean-niemann 🇺🇸 880 73 105ms 20 May 2024 341st tomtheisen 🇺🇸 879 53 11ms 18 Jan 2021 341st prplz 🇦🇺 879 53 10ms 24 Jan 2021 341st jakzo 879 53 10ms 5 Sep 2021 341st ovs-code 🇩🇪 879 53 11ms 5 Oct 2023 341st dokutan 879 53 11ms 18 Jul 2025 346th Steffan153 🇫🇮 879 54 8ms 18 Aug 2024 347th GrayJoKing 🇦🇺 879 74 105ms 6 Jun 2023 347th Steffan153 🇫🇮 879 74 120ms 18 Aug 2024 349th namelessiw 879 76 368ms 2 Oct 2025 349th Yewzir 🇧🇪 879 76 377ms 2 Oct 2025 351st Steffan153 🇫🇮 878 81 55ms 23 Mar 2023 351st sean-niemann 🇺🇸 878 81 56ms 23 Sep 2023 353rd Steffan153 🇫🇮 878 94 48ms 18 Jan 2023 354th GrayJoKing 🇦🇺 877 73 41ms 27 Jun 2022 354th primo-ppcg 🇹🇭 877 73 40ms 28 Jun 2022 356th m-tkach 🇺🇦 877 107 17ms 17 May 2022 357th GrayJoKing 🇦🇺 876 27 60ms 2 Aug 2022 358th saito-ta 🇯🇵 876 55 3ms 26 May 2022 358th nwellnhof 🇩🇪 876 55 3ms 13 May 2023 360th GrayJoKing 🇦🇺 876 63 7ms 31 Jan 2025 361st Irratix 🇳🇱 876 68 425ms 13 Dec 2021 361st namelessiw 876 68 389ms 18 Jul 2025 363rd emplv 🇱🇻 876 98 306ms 18 Jan 2022 363rd stefangimmillaro 876 98 304ms 21 Jun 2023 365th zacjl 875 72 40ms 13 Feb 2025 366th primo-ppcg 🇹🇭 875 78 4ms 2 May 2023 367th JayXon 🇺🇸 874 127 1,725ms 22 Apr 2024 368th m-tkach 🇺🇦 873 55 441ms 20 Jan 2024 368th neel11235813 873 55 453ms 29 Mar 2024 370th MeWhenI 🇻🇦 873 76 12ms 26 days ago 371st stefangimmillaro 873 82 39ms 26 Apr 2025 372nd primo-ppcg 🇹🇭 872 57 105ms 1 May 2023 373rd jared-hughes 872 126 15ms 7 Jul 2024 374th Steffan153 🇫🇮 868 79 451ms 23 Mar 2023 374th DialFrost 🇸🇬 868 79 463ms 7 Nov 2025 376th btjones0 868 87 135ms 26 Jan 2021 376th lynn 868 87 127ms 7 Jul 2024 378th ovs-code 🇩🇪 867 43 112ms 21 Dec 2022 379th Irratix 🇳🇱 867 82 58ms 18 Dec 2022 380th primo-ppcg 🇹🇭 865 57 12ms 18 Jan 2021 380th prplz 🇦🇺 865 57 13ms 21 Jan 2021 380th OllieBoyne 🇬🇧 865 57 10ms 22 Jan 2021 380th hiddicop 🇸🇪 865 57 11ms 29 Jan 2021 380th lynn 865 57 12ms 6 Mar 2021 380th vezzick 865 57 13ms 8 Mar 2021 380th kops-cg 865 57 11ms 8 Apr 2021 380th clementblaudeau 865 57 11ms 1 Jun 2021 380th jared-hughes 865 57 11ms 14 Aug 2021 380th michelebastione 🇮🇹 865 57 13ms 16 Aug 2021 380th Indivicivet 865 57 12ms 26 Oct 2021 380th bricknellj 865 57 11ms 14 Jan 2022 380th scpchicken 🇵🇼 865 57 12ms 12 Mar 2022 380th pascscha 865 57 13ms 28 Apr 2022 380th jgygax 865 57 12ms 28 Apr 2022 380th stefangimmillaro 865 57 12ms 13 May 2022 380th ZakkkkAttackkkk 🇵🇭 865 57 16ms 31 Jul 2022 380th inventshah 865 57 11ms 19 Sep 2022 380th LogicalJoe 865 57 10ms 19 Sep 2022 380th lzahray 865 57 31ms 21 Oct 2022 380th thehylian 865 57 14ms 10 Jan 2023 First Prev 321–400 of 1,900 Next Last