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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 Dragon Curve Ellipse Perimeters Flags Floyd-Steinberg Dithering Hexagonal Spiral Highly Composite Numbers NFA Simulator Nim 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 Dragon Curve Ellipse Perimeters Flags Floyd-Steinberg Dithering Hexagonal Spiral Highly Composite Numbers NFA Simulator Nim 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 600th jkelly467 816 70 2,392ms 22 Dec 2025 602nd BREMAUCY 🇫🇷 815 59 553ms 20 Feb 2024 603rd Shanethegamer 🇺🇸 815 96 85ms 9 Jun 2022 604th janlelis 812 52 42ms 18 Jan 2021 604th hiddicop 🇸🇪 812 52 42ms 29 Jan 2021 604th prplz 🇦🇺 812 52 40ms 22 Apr 2021 604th anter69 🇭🇺 812 52 40ms 14 Jan 2022 604th OhmNomNom 812 52 83ms 12 Oct 2022 604th olleicua 🇺🇸 812 52 39ms 25 Feb 2024 604th emgordon154 812 52 43ms 26 Nov 2024 611th GolfingSuccess 🇬🇷 812 81 9ms 9 Sep 2022 612th m-tkach 🇺🇦 812 106 25ms 25 Apr 2022 613th Shanethegamer 🇺🇸 812 108 326ms 26 Sep 2021 614th vezzick 811 62 13ms 12 Mar 2021 614th schachmattmatt 811 62 14ms 18 Aug 2021 614th cooljoseph1 811 62 24ms 6 May 2022 614th fredrik-bakke 🇳🇴 811 62 24ms 29 Sep 2022 614th nkoppel 811 62 16ms 19 Oct 2022 614th AodhanDalton 811 62 13ms 4 Nov 2022 614th nstearns96 🇬🇧 811 62 19ms 28 Nov 2022 614th adamnielson42 🇺🇸 811 62 12ms 10 Jan 2024 614th jbjd 811 62 11ms 2 Mar 2024 614th wh3n3v3r 🇨🇿 811 62 11ms 12 Nov 2024 614th jacekwladzinski 811 62 13ms 4 Oct 2025 614th Mabeloid 🇳🇴 811 62 12ms 26 Oct 2025 626th Yewzir 🇧🇪 810 79 37ms 16 Nov 2023 627th m-tkach 🇺🇦 810 89 57ms 25 Apr 2022 627th MeWhenI 🇻🇦 810 89 60ms 8 May 2022 629th Shanethegamer 🇺🇸 808 76 393ms 13 Dec 2021 630th emgordon154 807 67 2ms 22 Apr 2025 631st Dazza314 🇬🇧 806 24 3ms 16 Apr 2021 632nd Shanethegamer 🇺🇸 806 94 122ms 25 Jan 2021 633rd GolfingSuccess 🇬🇷 805 69 8ms 24 Dec 2024 634th stefangimmillaro 805 80 105ms 23 Sep 2023 635th prplz 🇦🇺 805 83 129ms 10 Jul 2024 636th emgordon154 805 85 8ms 3 Jan 2025 637th ArmaanAS 804 58 9ms 4 Apr 2021 637th itsh01 804 58 9ms 18 Nov 2021 639th Steffan153 🇫🇮 804 60 2ms 6 May 2023 640th DaDerpDuck 804 76 1ms 20 Jan 2021 641st NewDefectus 🇮🇱 801 35 50ms 25 Jan 2022 642nd MeWhenI 🇻🇦 801 50 3ms 11 Nov 2022 643rd Yewzir 🇧🇪 801 90 55ms 14 Oct 2023 644th Steffan153 🇫🇮 800 80 1,720ms 12 days ago 645th MeWhenI 🇻🇦 800 88 457ms 28 Feb 2022 646th edsrzf 🇳🇿 800 92 533ms 38 hours ago 647th apourchot 798 63 21ms 13 Feb 2021 647th neihousaigaai 798 63 11ms 10 Apr 2021 647th lechevalier 798 63 12ms 9 Aug 2021 647th yzhs 🇩🇪 798 63 10ms 7 Jun 2022 647th commandz0 🇺🇸 798 63 14ms 19 Sep 2022 647th fourth-bit 798 63 12ms 21 Nov 2022 647th FortuiteMan 🇫🇷 798 63 27ms 8 Sep 2023 647th ssbhatt4321 798 63 27ms 14 Oct 2023 647th JOrE20 798 63 13ms 25 Feb 2026 656th Yax42 🇫🇷 798 77 413ms 5 May 2025 657th TrueBoxGuy 798 95 129ms 24 Sep 2025 658th emgordon154 798 98 72ms 15 days ago 659th DialFrost 🇸🇬 797 53 39ms 2 Feb 2023 659th SirBogman 🇺🇸 797 53 41ms 10 Jun 2024 661st primo-ppcg 🇹🇭 797 78 69ms 13 Oct 2023 662nd tobeannouncd 797 82 124ms 8 Jan 2024 663rd MichalMarsalek 🇨🇿 796 84 132ms 6 Jan 2023 664th GrayJoKing 🇦🇺 796 86 10ms 15 Aug 2023 664th Shanethegamer 🇺🇸 796 86 11ms 11 Jan 2024 666th m-ender 🇩🇪 796 91 174ms 23 Apr 2021 667th GrayJoKing 🇦🇺 795 68 2ms 21 Jan 2021 667th m-tkach 🇺🇦 795 68 2ms 25 Apr 2022 667th MeWhenI 🇻🇦 795 68 2ms 11 Nov 2022 670th SirBogman 🇺🇸 793 31 52ms 7 Oct 2022 671st MeWhenI 🇻🇦 792 83 3ms 10 Sep 2022 672nd janbehrens 🇩🇪 792 91 62ms 20 Nov 2022 672nd snyderek 🇺🇸 792 91 54ms 21 Nov 2024 672nd dokutan 792 91 63ms 18 Jul 2025 675th Shanethegamer 🇺🇸 791 89 468ms 26 Jul 2023 676th Salutations45 790 59 17ms 9 Jan 2025 677th MeWhenI 🇻🇦 790 63 154ms 16 Nov 2022 678th kkoenig 790 111 342ms 5 Jan 2024 679th ashtraypettingzoo 🇺🇸 789 19 2ms 3 Apr 2023 679th AlephSquirrel 789 19 2ms 8 Nov 2025 681st SirBogman 🇺🇸 788 91 38ms 3 Jun 2025 682nd prplz 🇦🇺 787 46 297ms 24 Jan 2021 682nd TimCurwick 🇺🇸 787 46 258ms 26 Jan 2021 682nd SirBogman 🇺🇸 787 46 284ms 2 Feb 2024 685th RDShah 785 64 12ms 17 Jan 2021 685th andre-lameirinhas 🇵🇹 785 64 11ms 22 Feb 2021 685th stertooy 🇧🇪 785 64 12ms 10 Jun 2024 685th Terobero 785 64 21ms 6 Sep 2024 685th moustave 785 64 12ms 5 May 2025 685th Code-Coder-coder 785 64 13ms 25 Nov 2025 685th Lv0Sys 🇵🇱 785 64 13ms 4 Dec 2025 685th BrunoVisnadi 🇧🇷 785 64 26ms 16 days ago 693rd Yewzir 🇧🇪 785 82 101ms 28 Mar 2024 694th Shanethegamer 🇺🇸 783 63 386ms 2 Jul 2021 695th Waffle3z 782 54 39ms 19 Jan 2021 695th KatieLG 🇬🇧 782 54 43ms 9 Jan 2023 695th Andriamanitra 🇫🇮 782 54 40ms 20 Jul 2023 698th vang1ong7ang 781 97 176ms 3 days ago 699th Shanethegamer 🇺🇸 780 106 33ms 20 Jan 2025 700th SirBogman 🇺🇸 779 46 231ms 22 Oct 2021 First Prev 601–700 of 2,025 Next Last