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 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 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 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 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 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 240th janbehrens 🇩🇪 896 52 10ms 1 Aug 2021 240th inventshah 896 52 10ms 18 Jun 2022 240th dmrichwa 🇺🇸 896 52 10ms 28 Jul 2023 244th ovs-code 🇩🇪 896 53 9ms 30 Oct 2024 245th rak1507 🇬🇧 896 55 11ms 20 Jan 2021 245th GolfingSuccess 🇬🇷 896 55 14ms 25 Jan 2021 245th jacklynnepenick 896 55 10ms 19 Aug 2021 245th nwellnhof 🇩🇪 896 55 12ms 13 Jul 2022 245th jakobkordez 🇸🇮 896 55 17ms 8 Nov 2022 245th 2011-Chan-Ethan 896 55 11ms 20 Jul 2023 245th SB-945 896 55 11ms 20 Feb 2024 245th davecame 896 55 14ms 21 Aug 2024 245th albanian-laundromat 896 55 11ms 29 Mar 2025 245th 4atj 896 55 26ms 8 Apr 2025 245th plcc0 896 55 11ms 13 Jan 2026 256th Steffan153 🇫🇮 896 60 3ms 26 Jan 2024 256th sean-niemann 🇺🇸 896 60 2ms 31 Jan 2025 258th sean-niemann 🇺🇸 895 51 797ms 30 Aug 2025 258th Steffan153 🇫🇮 895 51 785ms 25 days ago 260th Steffan153 🇫🇮 894 96 304ms 10 Feb 2023 260th sean-niemann 🇺🇸 894 96 308ms 21 Sep 2023 262nd emplv 🇱🇻 892 72 117ms 28 Jul 2023 262nd Lydxn 🇨🇦 892 72 127ms 28 Jul 2023 264th CLOStrophobic 🇮🇹 892 82 56ms 24 Feb 2025 264th zacjl 892 82 10ms 24 Feb 2025 266th inventshah 891 64 2,302ms 27 Oct 2024 266th stefangimmillaro 891 64 2,244ms 13 Nov 2024 266th JayXon 🇺🇸 891 64 2,253ms 13 Nov 2024 266th pardouin 🇫🇷 891 64 2,267ms 22 days ago 270th GrayJoKing 🇦🇺 891 67 66ms 23 Mar 2023 270th IanUtley 891 67 68ms 9 May 2024 272nd sean-niemann 🇺🇸 891 77 469ms 26 Sep 2023 272nd Lydxn 🇨🇦 891 77 469ms 26 Sep 2023 272nd JayXon 🇺🇸 891 77 457ms 26 Sep 2023 275th Lydxn 🇨🇦 889 45 2ms 30 Oct 2022 275th sean-niemann 🇺🇸 889 45 2ms 31 Oct 2022 275th primo-ppcg 🇹🇭 889 45 2ms 7 Nov 2022 275th Steffan153 🇫🇮 889 45 2ms 11 Apr 2023 275th DialFrost 🇸🇬 889 45 2ms 21 Dec 2024 280th Yewzir 🇧🇪 889 54 392ms 15 Jan 2024 280th Shanethegamer 🇺🇸 889 54 420ms 16 Jan 2024 280th GrayJoKing 🇦🇺 889 54 430ms 23 Jul 2024 280th duckyluuk 🇳🇱 889 54 384ms 28 Aug 2024 280th KatieLG 🇬🇧 889 54 396ms 28 Oct 2024 280th GolfingSuccess 🇬🇷 889 54 414ms 25 Jan 2025 280th Babafaba 889 54 364ms 19 Nov 2025 280th snoozingnewt 🇨🇦 889 54 452ms 1 Dec 2025 288th prplz 🇦🇺 889 67 402ms 21 Nov 2021 288th DialFrost 🇸🇬 889 67 404ms 7 Nov 2025 290th Shanethegamer 🇺🇸 889 72 1,321ms 19 Jan 2025 291st Lydxn 🇨🇦 888 75 124ms 12 Jul 2021 292nd zacjl 887 71 8ms 21 Oct 2024 293rd JayXon 🇺🇸 887 77 92ms 19 Feb 2021 294th nwellnhof 🇩🇪 886 60 2ms 13 Jul 2022 294th emplv 🇱🇻 886 60 2ms 28 Jul 2023 296th Kacarott 🇦🇺 886 70 60ms 9 Dec 2025 296th GrayJoKing 🇦🇺 886 70 62ms 9 Dec 2025 298th GrayJoKing 🇦🇺 886 74 17ms 12 Feb 2023 299th GrayJoKing 🇦🇺 885 59 12ms 8 Aug 2023 300th inventshah 885 74 9ms 19 Sep 2022 301st DialFrost 🇸🇬 885 97 299ms 7 Nov 2025 302nd o0lit3 🇺🇸 884 42 3ms 13 Jun 2022 302nd DaCuteRaccoon 884 42 4ms 9 Dec 2022 302nd DialFrost 🇸🇬 884 42 4ms 1 Feb 2023 302nd MeWhenI 🇻🇦 884 42 4ms 16 Apr 2023 302nd nwellnhof 🇩🇪 884 42 4ms 29 May 2023 302nd xsot 🇸🇬 884 42 4ms 27 Jun 2025 302nd blaztoma 🇱🇹 884 42 3ms 12 Jan 2026 309th lukegustafson 🇺🇸 884 48 156ms 17 Jun 2025 310th GrayJoKing 🇦🇺 884 69 1ms 9 Apr 2022 311th primo-ppcg 🇹🇭 884 81 39ms 2 May 2025 312th emplv 🇱🇻 883 97 26ms 27 Jul 2023 313th razetime 882 17 2ms 12 Jan 2022 314th DialFrost 🇸🇬 882 74 116ms 28 Apr 2025 315th sisyphus-ppcg 🇦🇺 881 45 6ms 17 Jan 2021 315th Lydxn 🇨🇦 881 45 5ms 17 Jan 2021 315th emplv 🇱🇻 881 45 5ms 17 Jan 2021 315th GrayJoKing 🇦🇺 881 45 6ms 21 Sep 2021 315th DaCuteRaccoon 881 45 5ms 9 Dec 2022 315th DialFrost 🇸🇬 881 45 5ms 1 Feb 2023 First Prev 241–320 of 1,909 Next Last