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 239th m-tkach 🇺🇦 899 47 36ms 16 Jun 2023 242nd HPWiz 🇳🇿 899 51 249ms 10 Feb 2021 242nd JayXon 🇺🇸 899 51 224ms 20 Jun 2021 242nd Lydxn 🇨🇦 899 51 209ms 28 Jul 2023 242nd pardouin 🇫🇷 899 51 1,276ms 13 Apr 2025 242nd sean-niemann 🇺🇸 899 51 1,060ms 30 Aug 2025 242nd Steffan153 🇫🇮 899 51 1,125ms 14 Feb 2026 248th ovs-code 🇩🇪 898 53 9ms 30 Oct 2024 249th Steffan153 🇫🇮 898 60 2ms 26 Jan 2024 249th sean-niemann 🇺🇸 898 60 3ms 31 Jan 2025 251st GrayJoKing 🇦🇺 897 52 11ms 20 Jan 2021 251st janbehrens 🇩🇪 897 52 12ms 1 Aug 2021 251st inventshah 897 52 12ms 18 Jun 2022 251st dmrichwa 🇺🇸 897 52 12ms 28 Jul 2023 255th rak1507 🇬🇧 896 55 12ms 20 Jan 2021 255th GolfingSuccess 🇬🇷 896 55 15ms 25 Jan 2021 255th jacklynnepenick 896 55 14ms 19 Aug 2021 255th nwellnhof 🇩🇪 896 55 13ms 13 Jul 2022 255th jakobkordez 🇸🇮 896 55 17ms 8 Nov 2022 255th 2011-Chan-Ethan 896 55 12ms 20 Jul 2023 255th SB-945 896 55 11ms 20 Feb 2024 255th davecame 896 55 14ms 21 Aug 2024 255th albanian-laundromat 🇺🇸 896 55 11ms 29 Mar 2025 255th 4atj 896 55 29ms 8 Apr 2025 255th plcc0 896 55 12ms 13 Jan 2026 266th emplv 🇱🇻 896 72 109ms 28 Jul 2023 266th Lydxn 🇨🇦 896 72 110ms 28 Jul 2023 268th Steffan153 🇫🇮 896 96 320ms 10 Feb 2023 268th sean-niemann 🇺🇸 896 96 347ms 21 Sep 2023 270th inventshah 894 64 2,430ms 27 Oct 2024 270th stefangimmillaro 894 64 2,331ms 13 Nov 2024 270th JayXon 🇺🇸 894 64 2,395ms 13 Nov 2024 270th pardouin 🇫🇷 894 64 2,260ms 16 Feb 2026 274th sean-niemann 🇺🇸 894 77 469ms 26 Sep 2023 274th Lydxn 🇨🇦 894 77 469ms 26 Sep 2023 274th JayXon 🇺🇸 894 77 457ms 26 Sep 2023 274th Steffan153 🇫🇮 894 77 464ms 10 days ago 278th CLOStrophobic 🇮🇹 894 82 60ms 24 Feb 2025 278th zacjl 894 82 9ms 24 Feb 2025 280th GrayJoKing 🇦🇺 893 67 64ms 23 Mar 2023 280th IanUtley 893 67 66ms 9 May 2024 282nd Lydxn 🇨🇦 892 45 2ms 30 Oct 2022 282nd sean-niemann 🇺🇸 892 45 2ms 31 Oct 2022 282nd primo-ppcg 🇹🇭 892 45 2ms 7 Nov 2022 282nd Steffan153 🇫🇮 892 45 2ms 11 Apr 2023 282nd DialFrost 🇸🇬 892 45 2ms 21 Dec 2024 287th zacjl 892 70 8ms 11 Mar 2026 288th JayXon 🇺🇸 892 77 97ms 19 Feb 2021 289th Yewzir 🇧🇪 891 54 380ms 15 Jan 2024 289th Shanethegamer 🇺🇸 891 54 471ms 16 Jan 2024 289th GrayJoKing 🇦🇺 891 54 409ms 23 Jul 2024 289th duckyluuk 🇳🇱 891 54 505ms 28 Aug 2024 289th KatieLG 🇬🇧 891 54 400ms 28 Oct 2024 289th GolfingSuccess 🇬🇷 891 54 414ms 25 Jan 2025 289th Babafaba 891 54 432ms 19 Nov 2025 289th snoozingnewt 🇨🇦 891 54 417ms 1 Dec 2025 297th prplz 🇦🇺 891 67 394ms 21 Nov 2021 297th DialFrost 🇸🇬 891 67 377ms 7 Nov 2025 299th Shanethegamer 🇺🇸 891 72 1,444ms 19 Jan 2025 300th Lydxn 🇨🇦 891 75 124ms 12 Jul 2021 301st inventshah 889 74 9ms 19 Sep 2022 302nd emplv 🇱🇻 889 97 26ms 27 Jul 2023 303rd Kacarott 🇦🇺 888 70 60ms 9 Dec 2025 303rd GrayJoKing 🇦🇺 888 70 62ms 9 Dec 2025 305th GrayJoKing 🇦🇺 888 74 17ms 12 Feb 2023 306th GrayJoKing 🇦🇺 887 59 12ms 8 Aug 2023 307th primo-ppcg 🇹🇭 887 81 39ms 2 May 2025 308th DialFrost 🇸🇬 887 97 408ms 7 Nov 2025 309th o0lit3 🇺🇸 886 42 3ms 13 Jun 2022 309th DaCuteRaccoon 886 42 4ms 9 Dec 2022 309th DialFrost 🇸🇬 886 42 4ms 1 Feb 2023 309th MeWhenI 🇻🇦 886 42 3ms 16 Apr 2023 309th nwellnhof 🇩🇪 886 42 3ms 29 May 2023 309th xsot 🇸🇬 886 42 4ms 27 Jun 2025 309th blaztoma 🇱🇹 886 42 3ms 12 Jan 2026 316th lukegustafson 🇺🇸 886 48 164ms 17 Jun 2025 317th nwellnhof 🇩🇪 886 60 2ms 13 Jul 2022 317th emplv 🇱🇻 886 60 2ms 28 Jul 2023 319th GrayJoKing 🇦🇺 886 69 1ms 9 Apr 2022 320th GrayJoKing 🇦🇺 886 74 96ms 6 Jun 2023 First Prev 241–320 of 2,032 Next Last