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 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 Gray Code Decoder Gray Code Encoder 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 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 Gray Code Decoder Gray Code Encoder 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 719th KrausRaus 🇺🇸 764 61 11ms 19 Feb 2021 719th tayloia 🇬🇧 764 61 10ms 29 May 2022 723rd MeWhenI 🇻🇦 764 108 27ms 7 Jun 2023 724th ScottHamper 762 90 502ms 30 Nov 2025 725th albanian-laundromat 761 60 1,139ms 1 Oct 2025 726th ArmaanAS 761 66 11ms 4 Apr 2021 726th quimey 761 66 10ms 23 Jun 2023 726th firegene 🇮🇪 761 66 22ms 23 days ago 729th kcinnu 🇱🇹 760 146 1,731ms 17 May 2024 730th SirBogman 🇺🇸 759 86 115ms 24 Jan 2021 730th strout 759 86 124ms 15 Dec 2023 732nd antimon2 🇯🇵 758 65 495ms 19 Jan 2021 733rd GolfingSuccess 🇬🇷 758 71 6ms 16 Oct 2023 733rd Yewzir 🇧🇪 758 71 3ms 19 Nov 2025 735th edsrzf 🇳🇿 758 82 10ms 73 mins ago 736th duckyluuk 🇳🇱 756 73 7ms 16 Dec 2024 737th janbehrens 🇩🇪 756 93 460ms 24 Mar 2022 738th Shanethegamer 🇺🇸 754 63 4ms 13 Aug 2024 738th emgordon154 754 63 4ms 25 Aug 2024 740th olivermrose 🇺🇸 753 56 37ms 21 Sep 2021 741st RockOfStone 753 81 2ms 4 Nov 2021 741st dokutan 753 81 2ms 18 Jul 2025 743rd lynn 753 85 1,297ms 12 Sep 2021 744th sean-niemann 🇺🇸 752 61 142ms 17 Jun 2025 745th ScottHamper 752 62 9ms 1 Jun 2021 745th helbling 🇨🇭 752 62 15ms 2 Oct 2024 747th Yewzir 🇧🇪 751 72 2ms 12 Aug 2023 748th Mabeloid 🇳🇴 750 64 481ms 17 Sep 2024 749th msbranicky 750 67 14ms 21 Aug 2023 750th cipharius 750 87 169ms 19 Jan 2021 751st edsrzf 🇳🇿 750 91 7ms 65 mins ago 752nd Lydxn 🇨🇦 750 223 13ms 24 Jun 2021 753rd CaedenHarper 🇨🇦 749 61 798ms 11 Feb 2026 754th CaedenHarper 🇨🇦 749 117 282ms 11 Feb 2026 755th ovs-code 🇩🇪 748 49 157ms 2 Jan 2024 756th arctouch-cristiannevianna 748 82 389ms 22 Nov 2023 757th GolfingSuccess 🇬🇷 744 33 50ms 22 Jul 2022 758th SirBogman 🇺🇸 742 139 2ms 21 Dec 2021 759th kg583 🇺🇸 741 85 40ms 13 Feb 2025 760th jared-hughes 740 57 37ms 9 Sep 2022 761st olivermrose 🇺🇸 740 63 9ms 21 Sep 2021 761st GeorgeStechman 🇬🇧 740 63 10ms 17 Nov 2022 763rd janbehrens 🇩🇪 740 73 2ms 11 Jun 2021 764th DialFrost 🇸🇬 740 99 1,084ms 8 Mar 2024 765th Stockoh 🇫🇷 739 68 36ms 25 Dec 2021 765th Bonjour27891 🇻🇳 739 68 38ms 1 Sep 2022 765th trist224 🇫🇷 739 68 37ms 18 Oct 2022 765th mousetail 🇳🇱 739 68 37ms 11 Aug 2023 765th Command-Master 739 68 39ms 24 Sep 2023 770th AlephSquirrel 739 99 9ms 18 Jan 2025 770th edsrzf 🇳🇿 739 99 36ms 14 Dec 2025 772nd DialFrost 🇸🇬 738 49 280ms 25 Jun 2024 773rd Yewzir 🇧🇪 736 62 1,015ms 16 Nov 2025 774th MeWhenI 🇻🇦 734 93 4ms 22 May 2023 775th guliyevemil1 🇦🇿 733 89 124ms 11 Feb 2021 775th annaproxy 733 89 148ms 17 Aug 2022 775th Shanethegamer 🇺🇸 733 89 116ms 20 Jan 2024 775th snoozingnewt 🇨🇦 733 89 118ms 9 Dec 2025 779th Omega65536 🇩🇪 733 103 141ms 24 Nov 2022 780th primo-ppcg 🇹🇭 732 117 25ms 14 Jul 2021 781st Steffan153 🇫🇮 731 51 82ms 18 Dec 2022 782nd CaedenHarper 🇨🇦 731 84 392ms 17 Oct 2025 783rd Shanethegamer 🇺🇸 730 74 2ms 18 May 2022 784th Shanethegamer 🇺🇸 730 88 114ms 15 Oct 2022 785th dvik72 728 64 12ms 1 Jun 2022 785th AlephSquirrel 728 64 10ms 16 Feb 2023 787th abailey2020 🇺🇸 728 69 10ms 19 Feb 2021 787th Anonymousellama21 728 69 12ms 15 May 2022 787th TaserTheFox 🇺🇸 728 69 38ms 16 Feb 2023 790th annaproxy 727 58 43ms 24 Oct 2023 791st KatieLG 🇬🇧 727 63 1,399ms 25 Apr 2021 792nd Alex-x90 🇺🇸 727 99 448ms 23 Jun 2022 793rd elgan65536 🇺🇸 726 104 159ms 7 Feb 2026 794th dokutan 726 118 25ms 18 Jul 2025 795th ovs-code 🇩🇪 725 72 12ms 16 Jul 2023 796th yzhs 🇩🇪 725 90 117ms 24 Jul 2021 797th jacobly0 🇺🇸 725 153 1,809ms 22 Apr 2024 797th MeWhenI 🇻🇦 725 153 1,682ms 7 Nov 2025 799th AlephSquirrel 722 34 51ms 30 Dec 2022 800th scpchicken 🇵🇼 719 51 165ms 18 Jan 2023 First Prev 721–800 of 1,935 Next Last