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 Dragon Curve 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 Dragon Curve 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 dokutan 730 118 25ms 18 Jul 2025 802nd dvik72 729 64 10ms 1 Jun 2022 802nd AlephSquirrel 729 64 10ms 16 Feb 2023 804th ovs-code 🇩🇪 729 72 12ms 16 Jul 2023 805th Alex-x90 🇺🇸 729 99 417ms 23 Jun 2022 806th elgan65536 🇺🇸 729 104 161ms 7 Feb 2026 807th annaproxy 728 58 40ms 24 Oct 2023 808th KatieLG 🇬🇧 728 63 1,256ms 25 Apr 2021 809th abailey2020 🇺🇸 728 69 12ms 19 Feb 2021 809th Anonymousellama21 728 69 11ms 15 May 2022 809th TaserTheFox 🇺🇸 728 69 49ms 16 Feb 2023 812th MeWhenI 🇻🇦 727 156 1,736ms 8 days ago 813th yzhs 🇩🇪 726 90 117ms 24 Jul 2021 814th Yewzir 🇧🇪 724 91 2ms 28 Mar 2024 815th AlephSquirrel 723 34 50ms 30 Dec 2022 816th MeWhenI 🇻🇦 720 75 8ms 9 Oct 2023 817th marshallward 🇺🇸 719 100 41ms 7 May 2025 818th msbranicky 718 67 515ms 17 Jan 2024 819th osmith93 718 70 24ms 14 Jun 2021 819th ridingqwerty 🇺🇸 718 70 12ms 23 Feb 2024 819th mbittner20 718 70 11ms 15 Jul 2024 819th luuumine 🇫🇷 718 70 12ms 20 Oct 2025 823rd prplz 🇦🇺 718 91 118ms 25 Jan 2021 824th igmcdowell 717 65 10ms 23 Nov 2021 825th NewDefectus 🇮🇱 716 32 34ms 20 Dec 2021 826th MarcMush 🇫🇷 716 69 308ms 12 Feb 2024 827th prplz 🇦🇺 715 52 3ms 5 Feb 2021 828th emgordon154 715 80 2,689ms 9 Aug 2025 829th NewDefectus 🇮🇱 714 21 2ms 14 Jan 2022 830th Herbert00709 🇵🇱 714 101 62ms 19 Nov 2024 831st targrik 714 123 338ms 10 Jul 2025 832nd MeWhenI 🇻🇦 713 90 1,474ms 14 Jun 2023 833rd marcin7Cd 713 103 23ms 12 Feb 2021 834th NewDefectus 🇮🇱 712 76 2ms 25 Oct 2021 834th JohandeRuiter 🇳🇱 712 76 2ms 3 Dec 2023 834th madex 🇩🇪 712 76 2ms 13 days ago 837th aadenboy 🇺🇸 711 86 2ms 16 Dec 2025 838th Feniske 🇫🇷 710 51 287ms 21 Nov 2023 839th chordowl 710 92 116ms 17 Mar 2021 840th typeswitch-dev 🇵🇹 709 74 8ms 7 Aug 2023 841st SnowballSH 708 71 12ms 12 Feb 2021 841st Andre3582 708 71 13ms 18 Mar 2021 841st PhysicDev 🇫🇷 708 71 11ms 20 May 2021 841st Alban-Boissard 708 71 14ms 10 Jun 2025 845th omurakazuaki 🇯🇵 707 66 11ms 18 Feb 2021 845th BambooleanLogic 🇸🇪 707 66 9ms 22 Aug 2022 845th coreynash 707 66 9ms 21 Oct 2023 845th two-bad 🇬🇧 707 66 14ms 24 Nov 2023 845th dylanarmstrong 707 66 9ms 15 Jan 2024 845th madeforlosers 707 66 11ms 5 Nov 2025 851st Stockoh 🇫🇷 707 68 476ms 24 Jun 2024 852nd MeWhenI 🇻🇦 707 238 12ms 29 Aug 2023 853rd msbranicky 706 65 1,332ms 12 Sep 2023 854th Shanethegamer 🇺🇸 706 91 39ms 16 Jun 2022 855th primo-ppcg 🇹🇭 704 47 26ms 5 Feb 2022 856th scpchicken 🇵🇼 704 51 172ms 18 Jan 2023 857th SnowballSH 704 60 40ms 12 Feb 2021 857th aksyristos 704 60 43ms 28 Feb 2023 857th Lv0Sys 🇵🇱 704 60 42ms 4 Dec 2025 860th UnderKoen 🇳🇱 704 134 13ms 20 Jan 2025 861st MeWhenI 🇻🇦 703 35 55ms 26 Jul 2022 861st jared-hughes 703 35 50ms 31 Jul 2022 861st Natanaelel 🇸🇪 703 35 50ms 18 Aug 2022 861st CaedenHarper 🇨🇦 703 35 52ms 25 days ago 865th KasperKivimaeki 🇫🇮 702 125 346ms 3 Oct 2025 866th JayXon 🇺🇸 701 40 54ms 2 Jun 2021 867th jared-hughes 701 44 6ms 31 Jul 2022 868th Shanethegamer 🇺🇸 701 77 13ms 9 Oct 2023 869th JGDoerrer 700 103 457ms 5 Jan 2022 869th tailorspy 700 103 61ms 29 Oct 2023 871st jared-hughes 700 162 1,711ms 6 days ago 872nd LeeCamp 698 72 12ms 16 Feb 2022 872nd LukasFolwarczny 🇨🇿 698 72 15ms 16 Sep 2022 872nd CutSandstone 698 72 39ms 8 Jul 2024 875th targrik 697 57 5ms 26 Aug 2025 876th neihousaigaai 696 67 11ms 10 Apr 2021 877th boxjelly 695 94 114ms 21 Jan 2021 877th YAJUE114514 695 94 130ms 24 Jul 2025 879th dokutan 694 99 372ms 24 Sep 2025 880th MeWhenI 🇻🇦 694 106 345ms 26 Aug 2023 First Prev 801–880 of 2,107 Next Last