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 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 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 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 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 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 Turtle Tutorial # Golfer Points Bytes Time Submitted 824th CutSandstone 698 72 39ms 8 Jul 2024 827th neihousaigaai 696 67 10ms 10 Apr 2021 828th jared-hughes 696 159 1,500ms 16 Sep 2025 829th DialFrost 🇸🇬 695 56 76ms 22 Jul 2024 830th targrik 695 57 5ms 26 Aug 2025 831st boxjelly 694 94 139ms 21 Jan 2021 831st YAJUE114514 694 94 142ms 24 Jul 2025 833rd dokutan 693 99 344ms 24 Sep 2025 834th Espiobest 691 61 50ms 13 Feb 2021 834th DaCuteRaccoon 691 61 52ms 9 Dec 2022 836th edsrzf 🇳🇿 691 91 21ms 21 Dec 2024 837th JGDoerrer 691 103 373ms 5 Jan 2022 837th tailorspy 691 103 57ms 29 Oct 2023 839th MeWhenI 🇻🇦 691 106 350ms 26 Aug 2023 840th msbranicky 689 95 7ms 11 Aug 2023 841st Shanethegamer 🇺🇸 689 106 19ms 4 Oct 2024 842nd GolfingSuccess 🇬🇷 688 69 35ms 17 Aug 2024 843rd richard-oelze 🇩🇪 688 73 31ms 4 Apr 2021 843rd mauro-1 🇮🇹 688 73 10ms 18 Aug 2021 843rd gchenfc 688 73 11ms 24 Jan 2022 843rd hiichbindermax 688 73 11ms 26 Feb 2022 843rd Omega65536 🇩🇪 688 73 11ms 24 Nov 2022 843rd sandorstormen 688 73 12ms 18 Feb 2023 843rd Mr-McChicken 688 73 12ms 15 Oct 2023 843rd Masttest 688 73 10ms 21 Feb 2024 851st Andriamanitra 🇫🇮 687 95 186ms 20 Jul 2023 852nd MeWhenI 🇻🇦 685 72 340ms 15 Feb 2023 852nd Yewzir 🇧🇪 685 72 342ms 5 Apr 2024 854th DialFrost 🇸🇬 684 67 129ms 3 Aug 2024 855th msbranicky 684 89 1ms 26 Sep 2023 856th madex 🇩🇪 683 79 2ms 11 Jul 2024 857th AdrienHache 🇫🇷 682 41 49ms 23 Oct 2023 858th Yewzir 🇧🇪 681 90 325ms 14 Oct 2023 859th jameslindesay 679 74 12ms 24 Feb 2021 859th PkmnQ 679 74 36ms 5 May 2024 859th HumanoidCPU 679 74 11ms 3 Jun 2024 859th RedzGoose 🇦🇺 679 74 11ms 14 Oct 2024 859th yokasuretsu 679 74 11ms 13 Jan 2025 864th Shanethegamer 🇺🇸 678 126 27ms 8 Jul 2021 865th dokutan 677 59 3ms 18 Jul 2025 866th janbehrens 🇩🇪 673 68 1,067ms 9 Apr 2021 867th AdrienHache 🇫🇷 673 91 402ms 31 Dec 2023 868th msbranicky 672 80 4ms 11 Oct 2023 869th rboath 671 58 76ms 8 Jan 2025 870th I-Love-47 🇺🇦 671 106 56ms 10 Feb 2022 871st 5quiwyrm 670 54 234ms 5 Dec 2024 872nd Trunksistor 🇫🇷 670 75 11ms 25 May 2022 872nd celiendonze 🇨🇭 670 75 12ms 16 Jun 2023 872nd qwjhvbxi 670 75 12ms 9 Feb 2024 872nd wenbang24 670 75 13ms 6 Apr 2024 876th tatzyr 🇯🇵 669 63 39ms 29 Dec 2024 877th CaedenHarper 🇨🇦 666 70 9ms 31 Jan 2025 878th snoozingnewt 🇨🇦 666 98 112ms 30 Oct 2025 879th Natanaelel 🇸🇪 663 56 4ms 20 Jan 2024 880th DialFrost 🇸🇬 663 75 112ms 3 Jun 2025 881st 77Tigers 662 114 142ms 9 Apr 2024 882nd Waffle3z 661 76 11ms 20 Jan 2021 882nd hellwue 661 76 11ms 16 Nov 2023 882nd dokutan 661 76 16ms 24 Mar 2025 885th SirBogman 🇺🇸 659 108 56ms 3 Jan 2022 886th dokutan 658 69 717ms 30 Aug 2025 887th HumanoidCPU 658 73 409ms 3 Jun 2024 888th uttumuttu 🇫🇮 656 71 9ms 8 Jan 2022 888th olleicua 🇺🇸 656 71 9ms 20 Feb 2024 890th emgordon154 655 70 133ms 6 Sep 2024 891st msbranicky 654 134 262ms 3 Oct 2023 892nd albanian-laundromat 653 98 39ms 6 days ago 893rd olivermrose 🇺🇸 652 57 4ms 24 Aug 2021 894th f-tucker 652 77 10ms 2 Feb 2024 894th undefinedRyan 652 77 11ms 19 Apr 2025 894th Emutis 🇱🇹 652 77 10ms 12 Sep 2025 897th dokutan 652 94 346ms 18 Jul 2025 898th boxjelly 649 65 37ms 11 Feb 2021 898th msbranicky 649 65 43ms 12 Sep 2023 900th janbehrens 🇩🇪 649 135 265ms 13 Jun 2021 First Prev 826–900 of 1,879 Next Last