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 321st SirBogman 🇺🇸 880 21 3ms 30 Sep 2022 322nd lynn 880 25 34ms 11 Apr 2021 322nd GrayJoKing 🇦🇺 880 25 33ms 15 Feb 2022 322nd jared-hughes 880 25 33ms 21 Apr 2022 322nd rak1507 🇬🇧 880 25 33ms 28 Jan 2023 322nd bstrat 880 25 35ms 15 Jul 2024 327th DialFrost 🇸🇬 880 52 193ms 7 Jan 2024 327th Steffan153 🇫🇮 880 52 204ms 26 Feb 2024 327th sean-niemann 🇺🇸 880 52 225ms 27 Jun 2025 330th schachmattmatt 880 56 11ms 18 Aug 2021 330th MeWhenI 🇻🇦 880 56 31ms 22 Oct 2021 330th Irratix 🇳🇱 880 56 11ms 19 Apr 2022 330th tri1212 🇻🇳 880 56 11ms 18 Jul 2022 330th fredrik-bakke 🇳🇴 880 56 11ms 29 Sep 2022 330th neel11235813 880 56 32ms 21 Dec 2022 330th sisyphus-ppcg 🇦🇺 880 56 28ms 23 Mar 2023 330th elgan65536 🇺🇸 880 56 11ms 31 Mar 2024 330th HETHAT 🇩🇿 880 56 11ms 12 Apr 2024 330th wh3n3v3r 🇨🇿 880 56 12ms 12 Nov 2024 330th Seek64 🇩🇪 880 56 23ms 7 hours ago 341st JayXon 🇺🇸 880 73 116ms 15 Oct 2022 341st Steffan153 🇫🇮 880 73 130ms 7 Dec 2022 341st sean-niemann 🇺🇸 880 73 123ms 20 May 2024 344th tomtheisen 🇺🇸 879 53 10ms 18 Jan 2021 344th prplz 🇦🇺 879 53 9ms 24 Jan 2021 344th jakzo 879 53 10ms 5 Sep 2021 344th ovs-code 🇩🇪 879 53 10ms 5 Oct 2023 344th dokutan 879 53 10ms 18 Jul 2025 349th Steffan153 🇫🇮 879 54 6ms 18 Aug 2024 350th GrayJoKing 🇦🇺 879 74 96ms 6 Jun 2023 350th Steffan153 🇫🇮 879 74 112ms 18 Aug 2024 352nd namelessiw 879 76 368ms 2 Oct 2025 352nd Yewzir 🇧🇪 879 76 377ms 2 Oct 2025 354th Steffan153 🇫🇮 878 81 56ms 23 Mar 2023 354th sean-niemann 🇺🇸 878 81 57ms 23 Sep 2023 356th Steffan153 🇫🇮 878 94 49ms 18 Jan 2023 357th GrayJoKing 🇦🇺 877 73 38ms 27 Jun 2022 357th primo-ppcg 🇹🇭 877 73 38ms 28 Jun 2022 359th m-tkach 🇺🇦 877 107 17ms 17 May 2022 360th GrayJoKing 🇦🇺 876 27 57ms 2 Aug 2022 361st saito-ta 🇯🇵 876 55 3ms 26 May 2022 361st nwellnhof 🇩🇪 876 55 3ms 13 May 2023 363rd GrayJoKing 🇦🇺 876 63 7ms 31 Jan 2025 364th Irratix 🇳🇱 876 68 425ms 13 Dec 2021 364th namelessiw 876 68 389ms 18 Jul 2025 366th emplv 🇱🇻 876 98 319ms 18 Jan 2022 366th stefangimmillaro 876 98 276ms 21 Jun 2023 368th zacjl 875 72 40ms 13 Feb 2025 369th primo-ppcg 🇹🇭 875 78 4ms 2 May 2023 370th JayXon 🇺🇸 874 127 1,725ms 22 Apr 2024 371st m-tkach 🇺🇦 873 55 378ms 20 Jan 2024 371st neel11235813 873 55 453ms 29 Mar 2024 373rd MeWhenI 🇻🇦 873 76 12ms 18 Jan 2026 374th stefangimmillaro 873 82 39ms 26 Apr 2025 375th primo-ppcg 🇹🇭 872 57 151ms 1 May 2023 376th jared-hughes 872 126 15ms 7 Jul 2024 377th Steffan153 🇫🇮 868 79 451ms 23 Mar 2023 377th DialFrost 🇸🇬 868 79 463ms 7 Nov 2025 379th btjones0 868 87 123ms 26 Jan 2021 379th lynn 868 87 117ms 7 Jul 2024 381st ovs-code 🇩🇪 867 43 86ms 21 Dec 2022 382nd Irratix 🇳🇱 867 82 54ms 18 Dec 2022 383rd primo-ppcg 🇹🇭 865 57 10ms 18 Jan 2021 383rd prplz 🇦🇺 865 57 13ms 21 Jan 2021 383rd OllieBoyne 🇬🇧 865 57 10ms 22 Jan 2021 383rd hiddicop 🇸🇪 865 57 11ms 29 Jan 2021 383rd lynn 865 57 12ms 6 Mar 2021 383rd vezzick 865 57 13ms 8 Mar 2021 383rd kops-cg 865 57 11ms 8 Apr 2021 383rd clementblaudeau 865 57 11ms 1 Jun 2021 383rd jared-hughes 865 57 11ms 14 Aug 2021 383rd michelebastione 🇮🇹 865 57 12ms 16 Aug 2021 383rd Indivicivet 865 57 11ms 26 Oct 2021 383rd bricknellj 865 57 11ms 14 Jan 2022 383rd scpchicken 🇵🇼 865 57 11ms 12 Mar 2022 383rd pascscha 865 57 12ms 28 Apr 2022 383rd jgygax 865 57 12ms 28 Apr 2022 383rd stefangimmillaro 865 57 11ms 13 May 2022 383rd ZakkkkAttackkkk 🇵🇭 865 57 15ms 31 Jul 2022 383rd inventshah 865 57 11ms 19 Sep 2022 First Prev 321–400 of 1,909 Next Last