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 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 Apéry’s Constant Binary Lambda Calculus 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 Numbrix 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 ><> ALGOL 68 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 ArkScript 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 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 ArkScript 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 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 Apéry’s Constant Binary Lambda Calculus 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 Numbrix 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 641st tobeannouncd 796 82 124ms 8 Jan 2024 642nd GrayJoKing 🇦🇺 795 68 2ms 21 Jan 2021 642nd m-tkach 🇺🇦 795 68 2ms 25 Apr 2022 642nd MeWhenI 🇻🇦 795 68 2ms 11 Nov 2022 645th primo-ppcg 🇹🇭 795 78 71ms 13 Oct 2023 646th TrueBoxGuy 795 95 113ms 24 Sep 2025 647th GrayJoKing 🇦🇺 794 86 10ms 15 Aug 2023 647th Shanethegamer 🇺🇸 794 86 11ms 11 Jan 2024 649th m-ender 🇩🇪 794 91 153ms 23 Apr 2021 650th MichalMarsalek 🇨🇿 793 84 127ms 6 Jan 2023 651st SirBogman 🇺🇸 791 31 51ms 7 Oct 2022 652nd janbehrens 🇩🇪 791 91 57ms 20 Nov 2022 652nd snyderek 🇺🇸 791 91 53ms 21 Nov 2024 652nd dokutan 791 91 55ms 18 Jul 2025 655th Salutations45 790 59 10ms 9 Jan 2025 656th Shanethegamer 🇺🇸 790 89 468ms 26 Jul 2023 657th ashtraypettingzoo 🇺🇸 789 19 2ms 3 Apr 2023 657th AlephSquirrel 789 19 2ms 8 Nov 2025 659th MeWhenI 🇻🇦 789 63 114ms 16 Nov 2022 660th MeWhenI 🇻🇦 789 83 3ms 10 Sep 2022 661st kkoenig 789 111 290ms 5 Jan 2024 662nd prplz 🇦🇺 786 46 248ms 24 Jan 2021 662nd TimCurwick 🇺🇸 786 46 238ms 26 Jan 2021 662nd SirBogman 🇺🇸 786 46 254ms 2 Feb 2024 665th SirBogman 🇺🇸 786 91 38ms 3 Jun 2025 666th RDShah 785 64 11ms 17 Jan 2021 666th andre-lameirinhas 🇵🇹 785 64 11ms 22 Feb 2021 666th stertooy 🇧🇪 785 64 11ms 10 Jun 2024 666th Terobero 785 64 20ms 6 Sep 2024 666th moustave 785 64 12ms 5 May 2025 666th Code-Coder-coder 785 64 11ms 25 Nov 2025 666th Lv0Sys 🇵🇱 785 64 11ms 4 Dec 2025 673rd Yewzir 🇧🇪 784 82 111ms 28 Mar 2024 674th Shanethegamer 🇺🇸 782 63 346ms 2 Jul 2021 675th Waffle3z 781 54 37ms 19 Jan 2021 675th KatieLG 🇬🇧 781 54 37ms 9 Jan 2023 675th Andriamanitra 🇫🇮 781 54 38ms 20 Jul 2023 678th Shanethegamer 🇺🇸 778 106 33ms 20 Jan 2025 679th rak1507 🇬🇧 777 60 12ms 20 Jan 2021 679th Shanethegamer 🇺🇸 777 60 11ms 26 Sep 2021 679th duckyluuk 🇳🇱 777 60 9ms 4 Oct 2024 682nd anter69 🇭🇺 776 59 1,306ms 24 Feb 2023 682nd SirBogman 🇺🇸 776 59 1,208ms 10 Jun 2024 684th commandz0 🇺🇸 775 62 417ms 15 Jan 2024 685th NewDefectus 🇮🇱 774 25 4ms 25 Oct 2021 686th scpchicken 🇵🇼 774 48 3ms 15 Dec 2022 687th MeWhenI 🇻🇦 774 59 1,030ms 15 Sep 2025 688th Shanethegamer 🇺🇸 774 93 57ms 12 Jan 2022 689th ovs-code 🇩🇪 774 142 11ms 31 Mar 2023 690th TobyBoyne 🇬🇧 773 65 11ms 21 Jan 2021 690th 77Tigers 773 65 32ms 1 Mar 2021 690th knutae 🇳🇴 773 65 10ms 29 Jun 2021 690th ehulinsky 🇺🇸 773 65 13ms 10 Nov 2021 690th guilhem-roy 🇫🇷 773 65 12ms 28 Feb 2022 690th martinnorling 🇸🇪 773 65 10ms 8 Mar 2022 690th fgrosshans 🇫🇷 773 65 11ms 12 Jul 2022 690th IshanPanpaliya 773 65 11ms 3 May 2023 690th nooberitess 773 65 12ms 8 Apr 2025 690th robin-scragg 773 65 12ms 21 Oct 2025 690th Flekay 🇩🇪 773 65 14ms 8 days ago 701st c0d3-4-F00d 🇩🇪 772 70 2ms 18 Mar 2022 701st Alex-x90 🇺🇸 772 70 2ms 6 Mar 2023 701st dokutan 772 70 2ms 18 Jul 2025 704th mousetail 🇳🇱 771 98 121ms 3 Oct 2024 705th MeWhenI 🇻🇦 770 47 231ms 28 Jan 2023 706th LostSyntax21 🇬🇧 767 55 40ms 2 Oct 2024 707th MeWhenI 🇻🇦 767 89 103ms 25 Dec 2022 708th emgordon154 766 32 43ms 19 Oct 2025 709th retrohun 765 63 102ms 23 Jan 2023 710th Shanethegamer 🇺🇸 765 65 105ms 22 May 2021 711th lynn 765 78 151ms 16 Nov 2021 712th rucin93 🇵🇱 764 60 131ms 9 Aug 2024 713th Waffle3z 764 61 10ms 20 Jan 2021 713th didion0 🇺🇸 764 61 11ms 9 Feb 2021 713th KrausRaus 🇺🇸 764 61 10ms 19 Feb 2021 713th tayloia 🇬🇧 764 61 10ms 29 May 2022 717th MeWhenI 🇻🇦 764 108 27ms 7 Jun 2023 718th ScottHamper 762 90 502ms 30 Nov 2025 719th albanian-laundromat 761 60 1,139ms 1 Oct 2025 720th ArmaanAS 761 66 11ms 4 Apr 2021 First Prev 641–720 of 1,923 Next Last