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 376th janbehrens 🇩🇪 864 43 3ms 18 Jan 2021 377th Shanethegamer 🇺🇸 864 53 1,181ms 23 May 2021 377th MeWhenI 🇻🇦 864 53 996ms 16 Mar 2022 379th primo-ppcg 🇹🇭 864 57 11ms 18 Jan 2021 379th prplz 🇦🇺 864 57 12ms 21 Jan 2021 379th OllieBoyne 🇬🇧 864 57 11ms 22 Jan 2021 379th hiddicop 🇸🇪 864 57 11ms 29 Jan 2021 379th lynn 864 57 12ms 6 Mar 2021 379th vezzick 864 57 10ms 8 Mar 2021 379th kops-cg 864 57 10ms 8 Apr 2021 379th clementblaudeau 864 57 11ms 1 Jun 2021 379th jared-hughes 864 57 11ms 14 Aug 2021 379th michelebastione 🇮🇹 864 57 13ms 16 Aug 2021 379th Indivicivet 864 57 11ms 26 Oct 2021 379th bricknellj 864 57 10ms 14 Jan 2022 379th scpchicken 🇵🇼 864 57 10ms 12 Mar 2022 379th pascscha 864 57 12ms 28 Apr 2022 379th jgygax 864 57 13ms 28 Apr 2022 379th stefangimmillaro 864 57 14ms 13 May 2022 379th ZakkkkAttackkkk 🇵🇭 864 57 14ms 31 Jul 2022 379th inventshah 864 57 10ms 19 Sep 2022 379th LogicalJoe 864 57 10ms 19 Sep 2022 379th lzahray 864 57 31ms 21 Oct 2022 379th thehylian 864 57 10ms 10 Jan 2023 379th 5cw 🇺🇸 864 57 11ms 10 Apr 2023 379th xsot 🇸🇬 864 57 23ms 26 Apr 2023 379th Rubiksmath 864 57 11ms 14 Aug 2023 379th bzijlema 🇳🇱 864 57 10ms 15 Nov 2023 379th janbehrens 🇩🇪 864 57 11ms 30 Dec 2023 379th mathisfun271 864 57 10ms 4 Feb 2024 379th thienudomsrirungruang 864 57 10ms 27 Apr 2024 379th Seek64 🇩🇪 864 57 10ms 19 Jun 2024 379th wuzekai518 864 57 10ms 2 Aug 2024 379th bizy-coder 864 57 31ms 14 Aug 2024 379th michaelmgreer 864 57 11ms 9 Oct 2025 411th DaCuteRaccoon 863 54 10ms 9 Dec 2022 412th bitsandbeyond 🇳🇱 861 42 174ms 27 Oct 2025 413th sisyphus-ppcg 🇦🇺 861 56 2ms 12 Jul 2022 414th ovs-code 🇩🇪 861 73 71ms 17 Sep 2023 414th error256 861 73 71ms 19 Jun 2024 416th DialFrost 🇸🇬 861 76 3ms 14 Sep 2024 417th GrayJoKing 🇦🇺 859 96 35ms 18 Jan 2023 417th lynn 859 96 42ms 6 Aug 2023 419th edsrzf 🇳🇿 857 53 740ms 31 Aug 2025 419th DialFrost 🇸🇬 857 53 715ms 1 Sep 2025 421st sean-niemann 🇺🇸 857 58 113ms 27 Apr 2024 422nd inventshah 857 83 54ms 17 Nov 2022 422nd ovs-code 🇩🇪 857 83 54ms 3 Jun 2024 422nd DialFrost 🇸🇬 857 83 53ms 25 days ago 425th Irratix 🇳🇱 856 62 2ms 20 Dec 2021 425th ovs-code 🇩🇪 856 62 2ms 8 May 2023 425th sean-niemann 🇺🇸 856 62 2ms 18 Dec 2023 428th MeWhenI 🇻🇦 856 78 338ms 24 days ago 429th Lydxn 🇨🇦 855 100 27ms 13 Oct 2023 430th Lydxn 🇨🇦 854 63 2ms 15 Jan 2024 430th JayXon 🇺🇸 854 63 2ms 29 Jan 2024 430th rucin93 🇵🇱 854 63 2ms 13 days ago 433rd primo-ppcg 🇹🇭 854 78 118ms 27 Mar 2021 433rd Shanethegamer 🇺🇸 854 78 118ms 18 Mar 2023 433rd Ripick 854 78 118ms 2 Jun 2025 436th sean-niemann 🇺🇸 854 80 92ms 21 Sep 2023 436th Yewzir 🇧🇪 854 80 77ms 16 Nov 2023 438th primo-ppcg 🇹🇭 854 195 12ms 2 Aug 2023 439th Steffan153 🇫🇮 852 77 4ms 1 Nov 2023 440th MeWhenI 🇻🇦 852 84 43ms 29 Apr 2025 441st Yewzir 🇧🇪 852 130 1,697ms 27 Apr 2024 442nd ovs-code 🇩🇪 851 138 474ms 17 Feb 2025 443rd MeWhenI 🇻🇦 850 70 326ms 21 Nov 2021 444th albanian-laundromat 850 77 11ms 22 Oct 2025 445th Espiobest 849 58 10ms 13 Mar 2021 445th fgrosshans 🇫🇷 849 58 11ms 18 Jul 2022 445th MaxElf999 849 58 11ms 3 Oct 2022 445th Alex-x90 🇺🇸 849 58 29ms 23 Mar 2023 445th Natanaelel 🇸🇪 849 58 11ms 11 Apr 2023 445th InigoK 🇺🇸 849 58 28ms 28 May 2023 First Prev 376–450 of 1,857 Next Last