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 638th yzhs 🇩🇪 797 63 11ms 7 Jun 2022 638th commandz0 🇺🇸 797 63 13ms 19 Sep 2022 638th fourth-bit 797 63 11ms 21 Nov 2022 638th FortuiteMan 🇫🇷 797 63 31ms 8 Sep 2023 638th ssbhatt4321 797 63 27ms 14 Oct 2023 638th JOrE20 797 63 11ms 25 Feb 2026 647th Yax42 🇫🇷 797 77 448ms 5 May 2025 648th DialFrost 🇸🇬 796 53 38ms 2 Feb 2023 648th SirBogman 🇺🇸 796 53 38ms 10 Jun 2024 650th tobeannouncd 796 82 124ms 8 Jan 2024 651st TrueBoxGuy 796 95 113ms 24 Sep 2025 652nd GrayJoKing 🇦🇺 795 68 2ms 21 Jan 2021 652nd m-tkach 🇺🇦 795 68 2ms 25 Apr 2022 652nd MeWhenI 🇻🇦 795 68 2ms 11 Nov 2022 655th primo-ppcg 🇹🇭 795 78 71ms 13 Oct 2023 656th GrayJoKing 🇦🇺 794 86 10ms 15 Aug 2023 656th Shanethegamer 🇺🇸 794 86 11ms 11 Jan 2024 658th m-ender 🇩🇪 794 91 162ms 23 Apr 2021 659th MichalMarsalek 🇨🇿 793 84 117ms 6 Jan 2023 660th SirBogman 🇺🇸 792 31 45ms 7 Oct 2022 661st janbehrens 🇩🇪 791 91 61ms 20 Nov 2022 661st snyderek 🇺🇸 791 91 58ms 21 Nov 2024 661st dokutan 791 91 61ms 18 Jul 2025 664th Salutations45 790 59 10ms 9 Jan 2025 665th MeWhenI 🇻🇦 790 83 3ms 10 Sep 2022 666th Shanethegamer 🇺🇸 790 89 468ms 26 Jul 2023 667th ashtraypettingzoo 🇺🇸 789 19 2ms 3 Apr 2023 667th AlephSquirrel 789 19 2ms 8 Nov 2025 669th MeWhenI 🇻🇦 789 63 154ms 16 Nov 2022 670th kkoenig 789 111 311ms 5 Jan 2024 671st prplz 🇦🇺 786 46 271ms 24 Jan 2021 671st TimCurwick 🇺🇸 786 46 235ms 26 Jan 2021 671st SirBogman 🇺🇸 786 46 265ms 2 Feb 2024 674th SirBogman 🇺🇸 786 91 38ms 3 Jun 2025 675th RDShah 785 64 11ms 17 Jan 2021 675th andre-lameirinhas 🇵🇹 785 64 11ms 22 Feb 2021 675th stertooy 🇧🇪 785 64 11ms 10 Jun 2024 675th Terobero 785 64 20ms 6 Sep 2024 675th moustave 785 64 12ms 5 May 2025 675th Code-Coder-coder 785 64 11ms 25 Nov 2025 675th Lv0Sys 🇵🇱 785 64 11ms 4 Dec 2025 682nd Yewzir 🇧🇪 784 82 114ms 28 Mar 2024 683rd Waffle3z 782 54 38ms 19 Jan 2021 683rd KatieLG 🇬🇧 782 54 37ms 9 Jan 2023 683rd Andriamanitra 🇫🇮 782 54 37ms 20 Jul 2023 686th Shanethegamer 🇺🇸 782 63 346ms 2 Jul 2021 687th SirBogman 🇺🇸 778 46 253ms 22 Oct 2021 688th Shanethegamer 🇺🇸 778 106 33ms 20 Jan 2025 689th rak1507 🇬🇧 777 60 9ms 20 Jan 2021 689th Shanethegamer 🇺🇸 777 60 9ms 26 Sep 2021 689th duckyluuk 🇳🇱 777 60 10ms 4 Oct 2024 692nd anter69 🇭🇺 776 59 1,306ms 24 Feb 2023 692nd SirBogman 🇺🇸 776 59 1,208ms 10 Jun 2024 694th commandz0 🇺🇸 775 62 417ms 15 Jan 2024 695th NewDefectus 🇮🇱 774 25 4ms 25 Oct 2021 696th scpchicken 🇵🇼 774 48 3ms 15 Dec 2022 697th MeWhenI 🇻🇦 774 59 1,074ms 15 Sep 2025 698th Shanethegamer 🇺🇸 774 93 59ms 12 Jan 2022 699th ovs-code 🇩🇪 774 142 11ms 31 Mar 2023 700th TobyBoyne 🇬🇧 773 65 11ms 21 Jan 2021 700th 77Tigers 773 65 32ms 1 Mar 2021 700th knutae 🇳🇴 773 65 10ms 29 Jun 2021 700th ehulinsky 🇺🇸 773 65 13ms 10 Nov 2021 700th guilhem-roy 🇫🇷 773 65 12ms 28 Feb 2022 700th martinnorling 🇸🇪 773 65 10ms 8 Mar 2022 700th fgrosshans 🇫🇷 773 65 11ms 12 Jul 2022 700th IshanPanpaliya 773 65 11ms 3 May 2023 700th nooberitess 773 65 12ms 8 Apr 2025 700th robin-scragg 773 65 12ms 21 Oct 2025 710th c0d3-4-F00d 🇩🇪 772 70 2ms 18 Mar 2022 710th Alex-x90 🇺🇸 772 70 2ms 6 Mar 2023 710th dokutan 772 70 2ms 18 Jul 2025 713th mousetail 🇳🇱 772 98 129ms 3 Oct 2024 714th MeWhenI 🇻🇦 770 47 268ms 28 Jan 2023 715th emgordon154 767 32 43ms 19 Oct 2025 716th LostSyntax21 🇬🇧 767 55 36ms 2 Oct 2024 717th MeWhenI 🇻🇦 767 89 95ms 25 Dec 2022 718th retrohun 765 63 102ms 23 Jan 2023 719th Shanethegamer 🇺🇸 765 65 147ms 22 May 2021 720th lynn 765 78 152ms 16 Nov 2021 First Prev 641–720 of 1,949 Next Last