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 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 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 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 Calendar 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 Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Taxicab Numbers Tower of Hanoi 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 Arturo Befunge BQN CJam CoffeeScript Egel Fennel Harbour Hare Haxe Hush Hy iogii Knight 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 Arturo Befunge BQN CJam CoffeeScript Egel Fennel Harbour Hare Haxe Hush Hy iogii Knight 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 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 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 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 Calendar 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 Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Taxicab Numbers Tower of Hanoi Turtle Tutorial # Golfer Points Bytes Time Submitted 826th targrik 695 57 5ms 26 Aug 2025 827th boxjelly 694 94 139ms 21 Jan 2021 827th YAJUE114514 694 94 142ms 24 Jul 2025 829th dokutan 693 99 344ms 24 Sep 2025 830th Espiobest 691 61 50ms 13 Feb 2021 830th DaCuteRaccoon 691 61 52ms 9 Dec 2022 832nd edsrzf 🇳🇿 691 91 21ms 21 Dec 2024 833rd MeWhenI 🇻🇦 691 106 350ms 26 Aug 2023 834th JGDoerrer 690 103 372ms 5 Jan 2022 834th tailorspy 690 103 57ms 29 Oct 2023 836th msbranicky 689 95 7ms 11 Aug 2023 837th Shanethegamer 🇺🇸 689 106 19ms 4 Oct 2024 838th GolfingSuccess 🇬🇷 688 69 35ms 17 Aug 2024 839th richard-oelze 🇩🇪 688 73 31ms 4 Apr 2021 839th mauro-1 🇮🇹 688 73 9ms 18 Aug 2021 839th gchenfc 688 73 9ms 24 Jan 2022 839th hiichbindermax 688 73 10ms 26 Feb 2022 839th Omega65536 🇩🇪 688 73 11ms 24 Nov 2022 839th sandorstormen 688 73 11ms 18 Feb 2023 839th Mr-McChicken 688 73 11ms 15 Oct 2023 839th Masttest 688 73 10ms 21 Feb 2024 847th Andriamanitra 🇫🇮 687 95 186ms 20 Jul 2023 848th MeWhenI 🇻🇦 685 72 340ms 15 Feb 2023 848th Yewzir 🇧🇪 685 72 350ms 5 Apr 2024 850th DialFrost 🇸🇬 684 67 129ms 3 Aug 2024 851st msbranicky 684 89 2ms 26 Sep 2023 852nd madex 🇩🇪 683 79 2ms 11 Jul 2024 853rd AdrienHache 🇫🇷 682 41 49ms 23 Oct 2023 854th Yewzir 🇧🇪 681 90 325ms 14 Oct 2023 855th jameslindesay 679 74 11ms 24 Feb 2021 855th PkmnQ 679 74 37ms 5 May 2024 855th HumanoidCPU 679 74 11ms 3 Jun 2024 855th RedzGoose 🇦🇺 679 74 10ms 14 Oct 2024 855th yokasuretsu 679 74 11ms 13 Jan 2025 860th Shanethegamer 🇺🇸 678 126 27ms 8 Jul 2021 861st dokutan 677 59 3ms 18 Jul 2025 862nd janbehrens 🇩🇪 673 68 1,067ms 9 Apr 2021 863rd AdrienHache 🇫🇷 673 91 512ms 31 Dec 2023 864th msbranicky 672 80 4ms 11 Oct 2023 865th rboath 671 58 78ms 8 Jan 2025 866th 5quiwyrm 670 54 234ms 5 Dec 2024 867th Trunksistor 🇫🇷 670 75 11ms 25 May 2022 867th celiendonze 🇨🇭 670 75 11ms 16 Jun 2023 867th qwjhvbxi 670 75 11ms 9 Feb 2024 867th wenbang24 670 75 13ms 6 Apr 2024 871st I-Love-47 🇺🇦 670 106 53ms 10 Feb 2022 872nd tatzyr 🇯🇵 669 63 39ms 29 Dec 2024 873rd CaedenHarper 🇨🇦 666 70 10ms 31 Jan 2025 874th snoozingnewt 🇺🇸 666 98 112ms 30 Oct 2025 875th Natanaelel 🇸🇪 663 56 4ms 20 Jan 2024 876th DialFrost 🇸🇬 663 75 112ms 3 Jun 2025 877th 77Tigers 662 114 142ms 9 Apr 2024 878th Waffle3z 661 76 12ms 20 Jan 2021 878th hellwue 661 76 11ms 16 Nov 2023 878th dokutan 661 76 17ms 24 Mar 2025 881st dokutan 658 69 717ms 30 Aug 2025 882nd HumanoidCPU 658 73 457ms 3 Jun 2024 883rd SirBogman 🇺🇸 658 108 51ms 3 Jan 2022 884th uttumuttu 🇫🇮 656 71 8ms 8 Jan 2022 884th olleicua 🇺🇸 656 71 9ms 20 Feb 2024 886th emgordon154 655 70 133ms 6 Sep 2024 887th msbranicky 654 134 261ms 3 Oct 2023 888th olivermrose 🇺🇸 652 57 4ms 24 Aug 2021 889th f-tucker 652 77 10ms 2 Feb 2024 889th undefinedRyan 652 77 11ms 19 Apr 2025 889th Emutis 🇱🇹 652 77 11ms 12 Sep 2025 892nd dokutan 652 94 346ms 18 Jul 2025 893rd janbehrens 🇩🇪 649 135 271ms 13 Jun 2021 894th boxjelly 648 65 37ms 11 Feb 2021 894th msbranicky 648 65 43ms 12 Sep 2023 896th Bubbler-4 648 97 77ms 13 Sep 2023 896th Shanethegamer 🇺🇸 648 97 8ms 22 Dec 2023 898th jwhear 🇺🇸 647 171 1,651ms 1 Oct 2024 899th MeWhenI 🇻🇦 646 71 132ms 3 Aug 2024 900th AkashTandon167 644 78 10ms 25 May 2021 First Prev 826–900 of 1,873 Next Last