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 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 Bytes Time Submitted 474th aksyristos 852 59 16ms 28 Feb 2023 474th BREMAUCY 🇫🇷 852 59 11ms 27 Apr 2023 474th 2011-Chan-Ethan 852 59 12ms 17 Jul 2023 474th MarcMush 🇫🇷 852 59 11ms 12 Feb 2024 474th albanian-laundromat 🇺🇸 852 59 14ms 13 Apr 2025 474th plcc0 852 59 13ms 13 Jan 2026 474th CommandLeo 🇮🇹 852 59 12ms 18 Jan 2026 474th pengu1n-master 852 59 12ms 10 Feb 2026 474th retrohun 852 59 11ms 11 days ago 490th MeWhenI 🇻🇦 852 65 7ms 24 Dec 2024 491st kg583 🇺🇸 852 86 11ms 1 Sep 2025 492nd ovs-code 🇩🇪 851 73 67ms 17 Sep 2023 493rd sisyphus-ppcg 🇦🇺 851 89 121ms 25 Jan 2021 493rd Bubbler-4 851 89 120ms 1 Jul 2021 495th CatsAreFluffy 849 33 56ms 31 Dec 2022 496th MeWhenI 🇻🇦 848 27 33ms 16 Mar 2022 497th jared-hughes 848 55 11ms 31 Jul 2022 497th emgordon154 848 55 10ms 4 Mar 2025 499th primo-ppcg 🇹🇭 848 85 59ms 18 Jan 2022 499th 09cf 848 85 67ms 24 Sep 2023 501st dokutan 845 47 5ms 18 Jul 2025 502nd MeWhenI 🇻🇦 845 76 37ms 16 Jun 2022 503rd Shanethegamer 🇺🇸 844 50 40ms 22 Mar 2023 503rd MeWhenI 🇻🇦 844 50 42ms 22 Mar 2023 505th ovs-code 🇩🇪 844 87 110ms 8 Mar 2024 505th Steffan153 🇫🇮 844 87 15ms 3 days ago 507th KatieLG 🇬🇧 843 57 477ms 15 Jan 2024 507th kg583 🇺🇸 843 57 421ms 15 Jan 2024 507th GrayJoKing 🇦🇺 843 57 496ms 15 Jan 2024 507th MeWhenI 🇻🇦 843 57 548ms 17 Jan 2024 507th Yewzir 🇧🇪 843 57 494ms 29 Feb 2024 507th SirBogman 🇺🇸 843 57 484ms 10 Jun 2024 507th lifthrasiir 🇰🇷 843 57 470ms 2 Dec 2024 507th GolfingSuccess 🇬🇷 843 57 476ms 24 Dec 2024 507th emgordon154 843 57 448ms 23 Apr 2025 507th Babafaba 843 57 458ms 19 Nov 2025 507th CaedenHarper 🇨🇦 843 57 548ms 9 Dec 2025 518th MeWhenI 🇻🇦 843 104 333ms 8 Feb 2023 519th fuzzylojik-golf 🇺🇸 842 23 3ms 6 Sep 2025 520th btnlq 842 43 262ms 26 Jan 2021 520th primo-ppcg 🇹🇭 842 43 255ms 25 May 2021 522nd primo-ppcg 🇹🇭 842 87 30ms 25 Jan 2023 523rd acotis 842 90 132ms 3 Oct 2025 524th GrayJoKing 🇦🇺 839 84 466ms 28 Feb 2022 525th AGoyet 838 60 14ms 29 Jun 2022 525th jakobkordez 🇸🇮 838 60 16ms 8 Nov 2022 525th betaveros 838 60 20ms 31 Dec 2022 525th AlexanderFair 838 60 11ms 23 Jun 2023 525th Andriamanitra 🇫🇮 838 60 13ms 20 Jul 2023 525th dranjohn 838 60 51ms 15 Sep 2023 525th SB-945 838 60 12ms 20 Feb 2024 525th inverseLorentz 🇦🇺 838 60 12ms 9 Apr 2024 525th 051 🇸🇬 838 60 12ms 1 Aug 2024 525th vgamula 🇺🇦 838 60 33ms 28 Jul 2025 525th LuisGoncalves05 🇵🇹 838 60 11ms 29 Jul 2025 525th solisolu 838 60 11ms 1 Jan 2026 537th GrayJoKing 🇦🇺 835 55 137ms 6 Aug 2024 538th sean-niemann 🇺🇸 834 77 41ms 18 Dec 2023 539th Yewzir 🇧🇪 834 136 1,650ms 4 days ago 540th nwellnhof 🇩🇪 833 43 174ms 21 Oct 2021 540th primo-ppcg 🇹🇭 833 43 164ms 22 Apr 2022 542nd MeWhenI 🇻🇦 833 56 11ms 8 Jun 2022 542nd Yewzir 🇧🇪 833 56 13ms 16 Nov 2023 542nd voytxt 🇨🇿 833 56 10ms 25 Jan 2025 542nd targrik 833 56 9ms 21 Feb 2025 546th kritixilithos 832 58 3ms 29 May 2024 547th prplz 🇦🇺 832 65 2ms 24 Jan 2021 547th sisyphus-ppcg 🇦🇺 832 65 2ms 25 Jan 2021 547th inventshah 832 65 2ms 17 Nov 2022 547th 09cf 832 65 2ms 24 Sep 2023 547th DialFrost 🇸🇬 832 65 2ms 6 May 2025 552nd primo-ppcg 🇹🇭 831 77 1,534ms 30 Nov 2021 553rd sisyphus-ppcg 🇦🇺 830 60 148ms 25 Feb 2021 553rd sean-niemann 🇺🇸 830 60 155ms 27 Dec 2023 555th neel11235813 829 58 536ms 15 Jan 2024 555th Kacarott 🇦🇺 829 58 461ms 15 Jan 2024 555th Shanethegamer 🇺🇸 829 58 487ms 16 Jan 2024 555th Natanaelel 🇸🇪 829 58 473ms 20 Jan 2024 555th AlephSquirrel 829 58 411ms 21 Jan 2024 555th namelessiw 829 58 509ms 15 Aug 2024 First Prev 481–560 of 2,049 Next Last