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 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 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 Calendar 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 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 Arturo Befunge BQN CJam CoffeeScript Egel Fennel Harbour Hare Haxe Hush Hy iogii Knight 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 Arturo Befunge BQN CJam CoffeeScript Egel Fennel Harbour Hare Haxe Hush Hy iogii Knight 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 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 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 Calendar 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 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 226th stefangimmillaro 897 47 52ms 23 Mar 2023 226th Natanaelel 🇸🇪 897 47 48ms 11 Apr 2023 226th m-tkach 🇺🇦 897 47 39ms 16 Jun 2023 229th GrayJoKing 🇦🇺 897 73 5ms 10 Sep 2022 229th Shanethegamer 🇺🇸 897 73 13ms 11 Sep 2022 229th clockworknazo 897 73 12ms 19 Sep 2022 229th JayXon 🇺🇸 897 73 3ms 28 Sep 2022 229th Lydxn 🇨🇦 897 73 3ms 13 Oct 2023 229th sean-niemann 🇺🇸 897 73 3ms 30 Oct 2025 235th GrayJoKing 🇦🇺 896 52 11ms 20 Jan 2021 235th janbehrens 🇩🇪 896 52 9ms 1 Aug 2021 235th inventshah 896 52 9ms 18 Jun 2022 235th dmrichwa 🇺🇸 896 52 9ms 28 Jul 2023 239th ovs-code 🇩🇪 896 53 10ms 30 Oct 2024 240th rak1507 🇬🇧 896 55 11ms 20 Jan 2021 240th GolfingSuccess 🇬🇷 896 55 14ms 25 Jan 2021 240th jacklynnepenick 896 55 13ms 19 Aug 2021 240th nwellnhof 🇩🇪 896 55 12ms 13 Jul 2022 240th jakobkordez 🇸🇮 896 55 15ms 8 Nov 2022 240th 2011-Chan-Ethan 896 55 11ms 20 Jul 2023 240th SB-945 896 55 11ms 20 Feb 2024 240th davecame 896 55 12ms 21 Aug 2024 240th albanian-laundromat 896 55 12ms 29 Mar 2025 240th 4atj 896 55 22ms 8 Apr 2025 250th Steffan153 🇫🇮 896 60 2ms 26 Jan 2024 250th sean-niemann 🇺🇸 896 60 2ms 31 Jan 2025 252nd Shanethegamer 🇺🇸 895 68 2ms 24 Jan 2021 253rd Steffan153 🇫🇮 894 96 265ms 10 Feb 2023 253rd sean-niemann 🇺🇸 894 96 261ms 21 Sep 2023 255th emplv 🇱🇻 892 72 98ms 28 Jul 2023 255th Lydxn 🇨🇦 892 72 103ms 28 Jul 2023 257th sean-niemann 🇺🇸 891 51 718ms 30 Aug 2025 258th GrayJoKing 🇦🇺 891 67 71ms 23 Mar 2023 258th IanUtley 891 67 67ms 9 May 2024 260th sean-niemann 🇺🇸 891 77 453ms 26 Sep 2023 260th Lydxn 🇨🇦 891 77 453ms 26 Sep 2023 260th JayXon 🇺🇸 891 77 540ms 26 Sep 2023 263rd CLOStrophobic 🇮🇹 891 82 60ms 24 Feb 2025 263rd zacjl 891 82 10ms 24 Feb 2025 265th Yewzir 🇧🇪 889 54 434ms 15 Jan 2024 265th Shanethegamer 🇺🇸 889 54 416ms 16 Jan 2024 265th GrayJoKing 🇦🇺 889 54 423ms 23 Jul 2024 265th duckyluuk 🇳🇱 889 54 439ms 28 Aug 2024 265th KatieLG 🇬🇧 889 54 385ms 28 Oct 2024 265th GolfingSuccess 🇬🇷 889 54 426ms 25 Jan 2025 265th Babafaba 889 54 350ms 13 days ago 265th snoozingnewt 🇺🇸 889 54 369ms 33 hours ago 273rd inventshah 889 64 3,106ms 27 Oct 2024 273rd stefangimmillaro 889 64 2,832ms 13 Nov 2024 273rd JayXon 🇺🇸 889 64 2,981ms 13 Nov 2024 276th Shanethegamer 🇺🇸 889 72 1,319ms 19 Jan 2025 277th prplz 🇦🇺 888 67 320ms 21 Nov 2021 277th DialFrost 🇸🇬 888 67 346ms 25 days ago 279th Lydxn 🇨🇦 888 75 115ms 12 Jul 2021 280th Lydxn 🇨🇦 887 45 2ms 30 Oct 2022 280th sean-niemann 🇺🇸 887 45 3ms 31 Oct 2022 280th primo-ppcg 🇹🇭 887 45 2ms 7 Nov 2022 280th Steffan153 🇫🇮 887 45 2ms 11 Apr 2023 280th DialFrost 🇸🇬 887 45 2ms 21 Dec 2024 285th JayXon 🇺🇸 887 77 90ms 19 Feb 2021 286th GrayJoKing 🇦🇺 886 74 18ms 12 Feb 2023 287th GrayJoKing 🇦🇺 885 59 11ms 8 Aug 2023 288th GrayJoKing 🇦🇺 885 71 72ms 17 Sep 2023 288th Kacarott 🇦🇺 885 71 70ms 13 Oct 2023 288th zacjl 885 71 8ms 21 Oct 2024 291st inventshah 885 74 10ms 19 Sep 2022 292nd DialFrost 🇸🇬 885 97 230ms 25 days ago 293rd o0lit3 🇺🇸 884 42 4ms 13 Jun 2022 293rd DaCuteRaccoon 884 42 4ms 9 Dec 2022 293rd DialFrost 🇸🇬 884 42 4ms 1 Feb 2023 293rd MeWhenI 🇻🇦 884 42 3ms 16 Apr 2023 293rd nwellnhof 🇩🇪 884 42 4ms 29 May 2023 293rd xsot 🇸🇬 884 42 4ms 27 Jun 2025 299th lukegustafson 🇺🇸 884 48 135ms 17 Jun 2025 300th nwellnhof 🇩🇪 884 60 2ms 13 Jul 2022 First Prev 226–300 of 1,857 Next Last