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 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 Bytes Time Submitted 388th namelessiw 866 58 30ms 27 Jul 2024 388th edsrzf 🇳🇿 866 58 19ms 22 Nov 2024 388th croc54 866 58 30ms 9 Jan 2025 388th andrewjc2000 866 58 29ms 11 Mar 2025 388th Mukundan314 866 58 32ms 27 Apr 2025 388th fkantelberg 866 58 20ms 12 Jul 2025 388th wuduculfre 866 58 29ms 22 Jul 2025 388th HETHAT 🇩🇿 866 58 30ms 24 Sep 2025 388th CornerMercury 🇬🇧 866 58 29ms 24 Nov 2025 388th snoozingnewt 🇨🇦 866 58 18ms 1 Dec 2025 411th lukegustafson 🇺🇸 865 53 145ms 17 Jun 2025 412th stefangimmillaro 865 79 94ms 21 Jun 2023 413th janbehrens 🇩🇪 864 43 3ms 18 Jan 2021 414th Shanethegamer 🇺🇸 864 53 1,258ms 23 May 2021 414th MeWhenI 🇻🇦 864 53 1,291ms 16 Mar 2022 416th GrayJoKing 🇦🇺 864 90 104ms 9 Jun 2022 417th DaCuteRaccoon 863 54 10ms 9 Dec 2022 418th edsrzf 🇳🇿 862 53 1,416ms 31 Aug 2025 418th DialFrost 🇸🇬 862 53 940ms 1 Sep 2025 418th xsot 🇸🇬 862 53 1,028ms 21 Dec 2025 421st bitsandbeyond 🇳🇱 861 42 232ms 27 Oct 2025 422nd primo-ppcg 🇹🇭 861 49 47ms 18 Jan 2022 423rd sisyphus-ppcg 🇦🇺 861 56 2ms 12 Jul 2022 424th error256 861 72 62ms 11 Dec 2025 425th DialFrost 🇸🇬 861 76 3ms 14 Sep 2024 426th FortuiteMan 🇫🇷 860 84 12ms 16 Jan 2026 427th frosster 🇨🇦 859 71 2ms 27 Jan 2026 428th GrayJoKing 🇦🇺 859 96 32ms 18 Jan 2023 428th lynn 859 96 39ms 6 Aug 2023 430th DialFrost 🇸🇬 858 56 414ms 15 Jan 2024 430th duckyluuk 🇳🇱 858 56 475ms 27 Mar 2024 432nd Steffan153 🇫🇮 858 63 2ms 23 Mar 2023 432nd stefangimmillaro 858 63 2ms 18 Sep 2023 432nd xsot 🇸🇬 858 63 2ms 6 May 2025 432nd KasperKivimaeki 🇫🇮 858 63 2ms 14 Aug 2025 436th MeWhenI 🇻🇦 857 80 473ms 7 Nov 2025 437th jared-hughes 857 84 57ms 31 Jul 2022 437th inventshah 857 84 59ms 17 Nov 2022 439th Lydxn 🇨🇦 857 100 25ms 13 Oct 2023 440th primo-ppcg 🇹🇭 857 195 11ms 2 Aug 2023 441st emgordon154 855 84 9ms 32 mins ago 442nd Lydxn 🇨🇦 854 63 2ms 15 Jan 2024 442nd JayXon 🇺🇸 854 63 2ms 29 Jan 2024 442nd rucin93 🇵🇱 854 63 2ms 19 Nov 2025 445th primo-ppcg 🇹🇭 854 78 124ms 27 Mar 2021 445th Shanethegamer 🇺🇸 854 78 128ms 18 Mar 2023 445th Ripick 854 78 123ms 2 Jun 2025 448th sean-niemann 🇺🇸 854 80 94ms 21 Sep 2023 448th Yewzir 🇧🇪 854 80 82ms 16 Nov 2023 450th snoozingnewt 🇨🇦 854 102 113ms 5 Dec 2025 451st nwellnhof 🇩🇪 852 43 159ms 21 Oct 2021 451st primo-ppcg 🇹🇭 852 43 159ms 22 Apr 2022 453rd MeWhenI 🇻🇦 852 72 417ms 21 Nov 2021 454th MeWhenI 🇻🇦 852 84 40ms 29 Apr 2025 455th marcin7Cd 851 59 10ms 16 Jan 2021 455th rak1507 🇬🇧 851 59 10ms 20 Jan 2021 455th AlephSquirrel 851 59 11ms 13 May 2021 455th rschwa6308 🇺🇸 851 59 10ms 28 Jun 2021 455th NewDefectus 🇮🇱 851 59 12ms 25 Oct 2021 455th jacksonhenry3 851 59 13ms 21 Dec 2021 455th NicoAdams 851 59 12ms 21 Dec 2021 455th aksyristos 851 59 10ms 28 Feb 2023 455th BREMAUCY 🇫🇷 851 59 11ms 27 Apr 2023 455th 2011-Chan-Ethan 851 59 11ms 17 Jul 2023 455th MarcMush 🇫🇷 851 59 10ms 12 Feb 2024 455th albanian-laundromat 851 59 13ms 13 Apr 2025 455th plcc0 851 59 11ms 13 Jan 2026 455th CommandLeo 🇮🇹 851 59 11ms 18 Jan 2026 455th pengu1n-master 851 59 11ms 25 days ago 470th Shanethegamer 🇺🇸 851 67 2,205ms 27 Oct 2024 471st kg583 🇺🇸 851 86 9ms 1 Sep 2025 472nd ovs-code 🇩🇪 851 138 1,484ms 17 Feb 2025 473rd albanian-laundromat 850 77 9ms 22 Oct 2025 474th MeWhenI 🇻🇦 849 65 7ms 24 Dec 2024 475th ovs-code 🇩🇪 849 73 67ms 17 Sep 2023 476th MeWhenI 🇻🇦 848 27 33ms 16 Mar 2022 477th CatsAreFluffy 848 33 48ms 31 Dec 2022 478th sisyphus-ppcg 🇦🇺 848 89 119ms 25 Jan 2021 478th Bubbler-4 848 89 118ms 1 Jul 2021 480th snoozingnewt 🇨🇦 847 44 98ms 26 days ago First Prev 401–480 of 1,928 Next Last