Kolakoski Sequence in all languages in bytes. 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 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 Apéry’s Constant Binary Lambda Calculus 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 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 ><> 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 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 ><> 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 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 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 Apéry’s Constant Binary Lambda Calculus 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 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 Bytes Time Submitted 385th croc54 866 58 30ms 9 Jan 2025 385th andrewjc2000 866 58 29ms 11 Mar 2025 385th Mukundan314 866 58 36ms 27 Apr 2025 385th fkantelberg 866 58 22ms 12 Jul 2025 385th wuduculfre 866 58 30ms 22 Jul 2025 385th HETHAT 🇩🇿 866 58 30ms 24 Sep 2025 385th CornerMercury 🇬🇧 866 58 29ms 24 Nov 2025 385th snoozingnewt 🇨🇦 866 58 18ms 1 Dec 2025 409th lukegustafson 🇺🇸 865 53 142ms 17 Jun 2025 410th stefangimmillaro 865 79 97ms 21 Jun 2023 411th janbehrens 🇩🇪 864 43 3ms 18 Jan 2021 412th Shanethegamer 🇺🇸 864 53 1,258ms 23 May 2021 412th MeWhenI 🇻🇦 864 53 1,291ms 16 Mar 2022 414th GrayJoKing 🇦🇺 864 90 130ms 9 Jun 2022 415th DaCuteRaccoon 863 54 9ms 9 Dec 2022 416th edsrzf 🇳🇿 862 53 1,416ms 31 Aug 2025 416th DialFrost 🇸🇬 862 53 940ms 1 Sep 2025 416th xsot 🇸🇬 862 53 1,044ms 21 Dec 2025 419th bitsandbeyond 🇳🇱 861 42 241ms 27 Oct 2025 420th primo-ppcg 🇹🇭 861 49 49ms 18 Jan 2022 421st sisyphus-ppcg 🇦🇺 861 56 2ms 12 Jul 2022 422nd error256 861 72 62ms 11 Dec 2025 423rd DialFrost 🇸🇬 861 76 3ms 14 Sep 2024 424th FortuiteMan 🇫🇷 860 84 12ms 16 Jan 2026 425th frosster 859 71 2ms 18 days ago 426th GrayJoKing 🇦🇺 859 96 33ms 18 Jan 2023 426th lynn 859 96 39ms 6 Aug 2023 428th DialFrost 🇸🇬 858 56 439ms 15 Jan 2024 428th duckyluuk 🇳🇱 858 56 475ms 27 Mar 2024 430th Steffan153 🇫🇮 858 63 2ms 23 Mar 2023 430th stefangimmillaro 858 63 2ms 18 Sep 2023 430th xsot 🇸🇬 858 63 2ms 6 May 2025 430th KasperKivimaeki 🇫🇮 858 63 2ms 14 Aug 2025 434th MeWhenI 🇻🇦 857 80 473ms 7 Nov 2025 435th jared-hughes 857 84 58ms 31 Jul 2022 435th inventshah 857 84 59ms 17 Nov 2022 437th Lydxn 🇨🇦 857 100 25ms 13 Oct 2023 438th primo-ppcg 🇹🇭 857 195 11ms 2 Aug 2023 439th Lydxn 🇨🇦 854 63 2ms 15 Jan 2024 439th JayXon 🇺🇸 854 63 4ms 29 Jan 2024 439th rucin93 🇵🇱 854 63 2ms 19 Nov 2025 442nd primo-ppcg 🇹🇭 854 78 122ms 27 Mar 2021 442nd Shanethegamer 🇺🇸 854 78 125ms 18 Mar 2023 442nd Ripick 854 78 172ms 2 Jun 2025 445th sean-niemann 🇺🇸 854 80 95ms 21 Sep 2023 445th Yewzir 🇧🇪 854 80 76ms 16 Nov 2023 447th snoozingnewt 🇨🇦 854 102 117ms 5 Dec 2025 448th nwellnhof 🇩🇪 852 43 144ms 21 Oct 2021 448th primo-ppcg 🇹🇭 852 43 137ms 22 Apr 2022 450th MeWhenI 🇻🇦 852 72 425ms 21 Nov 2021 451st MeWhenI 🇻🇦 852 84 40ms 29 Apr 2025 452nd marcin7Cd 851 59 10ms 16 Jan 2021 452nd rak1507 🇬🇧 851 59 11ms 20 Jan 2021 452nd AlephSquirrel 851 59 11ms 13 May 2021 452nd rschwa6308 🇺🇸 851 59 11ms 28 Jun 2021 452nd NewDefectus 🇮🇱 851 59 12ms 25 Oct 2021 452nd jacksonhenry3 851 59 13ms 21 Dec 2021 452nd NicoAdams 851 59 12ms 21 Dec 2021 452nd aksyristos 851 59 11ms 28 Feb 2023 452nd BREMAUCY 🇫🇷 851 59 11ms 27 Apr 2023 452nd 2011-Chan-Ethan 851 59 11ms 17 Jul 2023 452nd MarcMush 🇫🇷 851 59 11ms 12 Feb 2024 452nd albanian-laundromat 851 59 13ms 13 Apr 2025 452nd plcc0 851 59 11ms 13 Jan 2026 452nd CommandLeo 🇮🇹 851 59 12ms 27 days ago 452nd pengu1n-master 851 59 11ms 4 days ago 467th Shanethegamer 🇺🇸 851 67 2,205ms 27 Oct 2024 467th pardouin 🇫🇷 851 67 2,194ms 23 Dec 2024 469th kg583 🇺🇸 851 86 9ms 1 Sep 2025 470th ovs-code 🇩🇪 851 138 1,420ms 17 Feb 2025 471st albanian-laundromat 850 77 9ms 22 Oct 2025 472nd MeWhenI 🇻🇦 849 65 7ms 24 Dec 2024 473rd ovs-code 🇩🇪 849 73 67ms 17 Sep 2023 474th MeWhenI 🇻🇦 848 27 33ms 16 Mar 2022 475th sisyphus-ppcg 🇦🇺 848 89 123ms 25 Jan 2021 475th Bubbler-4 848 89 123ms 1 Jul 2021 477th CatsAreFluffy 847 33 48ms 31 Dec 2022 478th snoozingnewt 🇨🇦 847 44 102ms 5 days ago 479th jared-hughes 847 55 10ms 31 Jul 2022 479th emgordon154 847 55 9ms 4 Mar 2025 First Prev 401–480 of 1,919 Next Last