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 801st elgan65536 🇺🇸 729 104 161ms 7 Feb 2026 802nd dokutan 729 118 25ms 18 Jul 2025 803rd annaproxy 728 58 44ms 24 Oct 2023 804th abailey2020 🇺🇸 728 69 12ms 19 Feb 2021 804th Anonymousellama21 728 69 11ms 15 May 2022 804th TaserTheFox 🇺🇸 728 69 49ms 16 Feb 2023 807th Alex-x90 🇺🇸 728 99 417ms 23 Jun 2022 808th KatieLG 🇬🇧 727 63 1,496ms 25 Apr 2021 809th ovs-code 🇩🇪 727 72 12ms 16 Jul 2023 810th MeWhenI 🇻🇦 727 156 1,898ms 7 days ago 811th yzhs 🇩🇪 726 90 117ms 24 Jul 2021 812th AlephSquirrel 723 34 50ms 30 Dec 2022 813th Yewzir 🇧🇪 722 91 2ms 28 Mar 2024 814th osmith93 718 70 24ms 14 Jun 2021 814th ridingqwerty 🇺🇸 718 70 12ms 23 Feb 2024 814th mbittner20 718 70 11ms 15 Jul 2024 814th luuumine 🇫🇷 718 70 12ms 20 Oct 2025 818th MeWhenI 🇻🇦 718 75 8ms 9 Oct 2023 819th prplz 🇦🇺 718 91 118ms 25 Jan 2021 820th igmcdowell 717 65 14ms 23 Nov 2021 821st msbranicky 717 67 515ms 17 Jan 2024 822nd marshallward 🇺🇸 717 100 41ms 7 May 2025 823rd NewDefectus 🇮🇱 716 32 34ms 20 Dec 2021 824th prplz 🇦🇺 715 52 3ms 5 Feb 2021 825th MarcMush 🇫🇷 715 69 309ms 12 Feb 2024 826th NewDefectus 🇮🇱 714 21 2ms 14 Jan 2022 827th emgordon154 714 80 2,397ms 9 Aug 2025 828th Herbert00709 🇵🇱 714 101 62ms 19 Nov 2024 829th targrik 713 123 338ms 10 Jul 2025 830th marcin7Cd 712 103 23ms 12 Feb 2021 831st NewDefectus 🇮🇱 711 76 2ms 25 Oct 2021 831st JohandeRuiter 🇳🇱 711 76 2ms 3 Dec 2023 831st madex 🇩🇪 711 76 3ms 12 days ago 834th aadenboy 🇺🇸 711 86 2ms 16 Dec 2025 835th MeWhenI 🇻🇦 711 90 1,474ms 14 Jun 2023 836th Feniske 🇫🇷 710 51 287ms 21 Nov 2023 837th chordowl 710 92 116ms 17 Mar 2021 838th SnowballSH 708 71 12ms 12 Feb 2021 838th Andre3582 708 71 13ms 18 Mar 2021 838th PhysicDev 🇫🇷 708 71 11ms 20 May 2021 838th Alban-Boissard 708 71 14ms 10 Jun 2025 842nd vang1ong7ang 708 107 178ms 15 days ago 843rd omurakazuaki 🇯🇵 707 66 12ms 18 Feb 2021 843rd BambooleanLogic 🇸🇪 707 66 11ms 22 Aug 2022 843rd coreynash 707 66 10ms 21 Oct 2023 843rd two-bad 🇬🇧 707 66 10ms 24 Nov 2023 843rd dylanarmstrong 707 66 11ms 15 Jan 2024 843rd madeforlosers 707 66 13ms 5 Nov 2025 849th Stockoh 🇫🇷 707 68 476ms 24 Jun 2024 850th typeswitch-dev 🇵🇹 707 74 8ms 7 Aug 2023 851st Shanethegamer 🇺🇸 706 91 39ms 16 Jun 2022 852nd msbranicky 705 65 1,563ms 12 Sep 2023 853rd MeWhenI 🇻🇦 705 238 12ms 29 Aug 2023 854th SnowballSH 704 60 40ms 12 Feb 2021 854th aksyristos 704 60 45ms 28 Feb 2023 854th Lv0Sys 🇵🇱 704 60 42ms 4 Dec 2025 857th primo-ppcg 🇹🇭 703 47 26ms 5 Feb 2022 858th scpchicken 🇵🇼 703 51 172ms 18 Jan 2023 859th MeWhenI 🇻🇦 702 35 55ms 26 Jul 2022 859th jared-hughes 702 35 50ms 31 Jul 2022 859th Natanaelel 🇸🇪 702 35 51ms 18 Aug 2022 859th CaedenHarper 🇨🇦 702 35 52ms 24 days ago 863rd KasperKivimaeki 🇫🇮 702 125 346ms 3 Oct 2025 864th UnderKoen 🇳🇱 702 134 13ms 20 Jan 2025 865th JayXon 🇺🇸 701 40 54ms 2 Jun 2021 866th jared-hughes 700 44 6ms 31 Jul 2022 867th Shanethegamer 🇺🇸 700 77 13ms 9 Oct 2023 868th JGDoerrer 700 103 457ms 5 Jan 2022 868th tailorspy 700 103 61ms 29 Oct 2023 870th jared-hughes 700 162 1,711ms 5 days ago 871st LeeCamp 698 72 12ms 16 Feb 2022 871st LukasFolwarczny 🇨🇿 698 72 15ms 16 Sep 2022 871st CutSandstone 698 72 39ms 8 Jul 2024 874th targrik 696 57 5ms 26 Aug 2025 875th neihousaigaai 696 67 11ms 10 Apr 2021 876th boxjelly 695 94 114ms 21 Jan 2021 876th YAJUE114514 695 94 130ms 24 Jul 2025 878th dokutan 693 99 372ms 24 Sep 2025 879th MeWhenI 🇻🇦 693 106 345ms 26 Aug 2023 880th Espiobest 692 61 41ms 13 Feb 2021 First Prev 801–880 of 2,049 Next Last