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 Multitap Input 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 Multitap Input 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 223rd pardouin 🇫🇷 898 51 847ms 13 Apr 2025 227th stefangimmillaro 897 47 52ms 23 Mar 2023 227th Natanaelel 🇸🇪 897 47 48ms 11 Apr 2023 227th m-tkach 🇺🇦 897 47 39ms 16 Jun 2023 230th GrayJoKing 🇦🇺 897 73 5ms 10 Sep 2022 230th Shanethegamer 🇺🇸 897 73 13ms 11 Sep 2022 230th clockworknazo 897 73 12ms 19 Sep 2022 230th JayXon 🇺🇸 897 73 3ms 28 Sep 2022 230th Lydxn 🇨🇦 897 73 3ms 13 Oct 2023 230th sean-niemann 🇺🇸 897 73 3ms 30 Oct 2025 236th GrayJoKing 🇦🇺 896 52 9ms 20 Jan 2021 236th janbehrens 🇩🇪 896 52 9ms 1 Aug 2021 236th inventshah 896 52 9ms 18 Jun 2022 236th dmrichwa 🇺🇸 896 52 10ms 28 Jul 2023 240th ovs-code 🇩🇪 896 53 10ms 30 Oct 2024 241st rak1507 🇬🇧 896 55 11ms 20 Jan 2021 241st GolfingSuccess 🇬🇷 896 55 13ms 25 Jan 2021 241st jacklynnepenick 896 55 11ms 19 Aug 2021 241st nwellnhof 🇩🇪 896 55 12ms 13 Jul 2022 241st jakobkordez 🇸🇮 896 55 18ms 8 Nov 2022 241st 2011-Chan-Ethan 896 55 11ms 20 Jul 2023 241st SB-945 896 55 11ms 20 Feb 2024 241st davecame 896 55 12ms 21 Aug 2024 241st albanian-laundromat 896 55 11ms 29 Mar 2025 241st 4atj 896 55 24ms 8 Apr 2025 251st Steffan153 🇫🇮 896 60 2ms 26 Jan 2024 251st sean-niemann 🇺🇸 896 60 2ms 31 Jan 2025 253rd Shanethegamer 🇺🇸 895 68 1ms 24 Jan 2021 254th Steffan153 🇫🇮 894 96 263ms 10 Feb 2023 254th sean-niemann 🇺🇸 894 96 296ms 21 Sep 2023 256th emplv 🇱🇻 892 72 96ms 28 Jul 2023 256th Lydxn 🇨🇦 892 72 101ms 28 Jul 2023 258th sean-niemann 🇺🇸 891 51 736ms 30 Aug 2025 259th GrayJoKing 🇦🇺 891 67 61ms 23 Mar 2023 259th IanUtley 891 67 73ms 9 May 2024 261st sean-niemann 🇺🇸 891 77 453ms 26 Sep 2023 261st Lydxn 🇨🇦 891 77 453ms 26 Sep 2023 261st JayXon 🇺🇸 891 77 540ms 26 Sep 2023 264th CLOStrophobic 🇮🇹 891 82 60ms 24 Feb 2025 264th zacjl 891 82 10ms 24 Feb 2025 266th Lydxn 🇨🇦 889 45 2ms 30 Oct 2022 266th sean-niemann 🇺🇸 889 45 3ms 31 Oct 2022 266th primo-ppcg 🇹🇭 889 45 2ms 7 Nov 2022 266th Steffan153 🇫🇮 889 45 2ms 11 Apr 2023 266th DialFrost 🇸🇬 889 45 2ms 21 Dec 2024 271st Yewzir 🇧🇪 889 54 367ms 15 Jan 2024 271st Shanethegamer 🇺🇸 889 54 362ms 16 Jan 2024 271st GrayJoKing 🇦🇺 889 54 423ms 23 Jul 2024 271st duckyluuk 🇳🇱 889 54 376ms 28 Aug 2024 271st KatieLG 🇬🇧 889 54 361ms 28 Oct 2024 271st GolfingSuccess 🇬🇷 889 54 357ms 25 Jan 2025 271st Babafaba 889 54 383ms 17 days ago 271st snoozingnewt 🇨🇦 889 54 405ms 5 days ago 279th inventshah 889 64 3,106ms 27 Oct 2024 279th stefangimmillaro 889 64 2,832ms 13 Nov 2024 279th JayXon 🇺🇸 889 64 2,981ms 13 Nov 2024 282nd Shanethegamer 🇺🇸 889 72 1,319ms 19 Jan 2025 283rd prplz 🇦🇺 888 67 320ms 21 Nov 2021 283rd DialFrost 🇸🇬 888 67 346ms 7 Nov 2025 285th Lydxn 🇨🇦 888 75 115ms 12 Jul 2021 286th JayXon 🇺🇸 887 77 90ms 19 Feb 2021 287th GrayJoKing 🇦🇺 886 74 17ms 12 Feb 2023 288th GrayJoKing 🇦🇺 885 59 11ms 8 Aug 2023 289th GrayJoKing 🇦🇺 885 71 72ms 17 Sep 2023 289th Kacarott 🇦🇺 885 71 70ms 13 Oct 2023 289th zacjl 885 71 8ms 21 Oct 2024 292nd inventshah 885 74 10ms 19 Sep 2022 293rd DialFrost 🇸🇬 885 97 273ms 7 Nov 2025 294th o0lit3 🇺🇸 884 42 2ms 13 Jun 2022 294th DaCuteRaccoon 884 42 4ms 9 Dec 2022 294th DialFrost 🇸🇬 884 42 4ms 1 Feb 2023 294th MeWhenI 🇻🇦 884 42 3ms 16 Apr 2023 294th nwellnhof 🇩🇪 884 42 3ms 29 May 2023 294th xsot 🇸🇬 884 42 4ms 27 Jun 2025 300th lukegustafson 🇺🇸 884 48 135ms 17 Jun 2025 First Prev 226–300 of 1,861 Next Last