Kolakoski Sequence in all languages in chars. 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 Chars Time Submitted 639th AodhanDalton 795 62 13ms 4 Nov 2022 639th nstearns96 🇬🇧 795 62 19ms 28 Nov 2022 639th adamnielson42 🇺🇸 795 62 12ms 10 Jan 2024 639th jbjd 795 62 11ms 2 Mar 2024 639th HumanoidCPU 795 62 12ms 3 Jun 2024 639th jacekwladzinski 795 62 13ms 4 Oct 2025 639th Mabeloid 🇳🇴 795 62 12ms 26 Oct 2025 648th emgordon154 794 67 2ms 22 Apr 2025 649th MeWhenI 🇻🇦 792 63 154ms 16 Nov 2022 650th MeWhenI 🇻🇦 792 83 3ms 10 Sep 2022 650th clockworknazo 792 83 17ms 26 Sep 2022 652nd Salutations45 790 59 11ms 9 Jan 2025 653rd SirBogman 🇺🇸 790 91 38ms 3 Jun 2025 654th ashtraypettingzoo 🇺🇸 789 19 2ms 3 Apr 2023 654th AlephSquirrel 789 19 2ms 8 Nov 2025 656th kkoenig 789 109 342ms 5 Jan 2024 657th prplz 🇦🇺 788 46 237ms 24 Jan 2021 657th TimCurwick 🇺🇸 788 46 217ms 26 Jan 2021 657th SirBogman 🇺🇸 788 46 219ms 2 Feb 2024 660th Yewzir 🇧🇪 786 82 119ms 28 Mar 2024 661st Shanethegamer 🇺🇸 785 76 387ms 13 Dec 2021 661st Yax42 🇫🇷 785 76 424ms 5 May 2025 663rd nwellnhof 🇩🇪 783 38 167ms 21 Oct 2021 664th apourchot 783 63 21ms 13 Feb 2021 664th neihousaigaai 783 63 11ms 10 Apr 2021 664th lechevalier 783 63 12ms 9 Aug 2021 664th commandz0 🇺🇸 783 63 14ms 19 Sep 2022 664th fourth-bit 783 63 12ms 21 Nov 2022 664th FortuiteMan 🇫🇷 783 63 27ms 8 Sep 2023 664th ssbhatt4321 783 63 27ms 14 Oct 2023 664th dokutan 783 63 19ms 1 Apr 2025 672nd janbehrens 🇩🇪 783 91 59ms 20 Nov 2022 672nd snyderek 🇺🇸 783 91 56ms 21 Nov 2024 672nd dokutan 783 91 58ms 18 Jul 2025 675th Waffle3z 782 54 38ms 19 Jan 2021 675th olivermrose 🇺🇸 782 54 35ms 28 Sep 2021 675th KatieLG 🇬🇧 782 54 39ms 9 Jan 2023 675th Andriamanitra 🇫🇮 782 54 37ms 20 Jul 2023 679th GrayJoKing 🇦🇺 782 68 2ms 21 Jan 2021 679th m-tkach 🇺🇦 782 68 2ms 25 Apr 2022 679th MeWhenI 🇻🇦 782 68 2ms 11 Nov 2022 682nd MeWhenI 🇻🇦 782 88 457ms 28 Feb 2022 683rd Shanethegamer 🇺🇸 780 106 33ms 20 Jan 2025 684th anter69 🇭🇺 777 59 1,306ms 24 Feb 2023 684th SirBogman 🇺🇸 777 59 1,208ms 10 Jun 2024 686th rak1507 🇬🇧 777 60 11ms 20 Jan 2021 686th Shanethegamer 🇺🇸 777 60 10ms 26 Sep 2021 686th duckyluuk 🇳🇱 777 60 10ms 4 Oct 2024 689th commandz0 🇺🇸 776 62 523ms 15 Jan 2024 689th HumanoidCPU 776 62 434ms 3 Jun 2024 689th dokutan 776 62 498ms 14 Feb 2026 692nd ovs-code 🇩🇪 776 142 11ms 31 Mar 2023 693rd scpchicken 🇵🇼 775 48 3ms 15 Dec 2022 694th mousetail 🇳🇱 774 98 123ms 3 Oct 2024 695th GrayJoKing 🇦🇺 773 55 149ms 6 Aug 2024 696th Shanethegamer 🇺🇸 773 89 468ms 26 Jul 2023 697th MeWhenI 🇻🇦 772 89 95ms 25 Dec 2022 698th MeWhenI 🇻🇦 771 47 247ms 28 Jan 2023 699th NewDefectus 🇮🇱 770 24 4ms 25 Oct 2021 700th RDShah 770 64 12ms 17 Jan 2021 700th andre-lameirinhas 🇵🇹 770 64 11ms 22 Feb 2021 700th stertooy 🇧🇪 770 64 12ms 10 Jun 2024 700th Terobero 770 64 21ms 6 Sep 2024 700th moustave 770 64 12ms 5 May 2025 700th Code-Coder-coder 770 64 13ms 25 Nov 2025 700th Lv0Sys 🇵🇱 770 64 13ms 4 Dec 2025 700th BrunoVisnadi 🇧🇷 770 64 35ms 4 days ago 708th LostSyntax21 🇬🇧 768 55 36ms 2 Oct 2024 709th Shanethegamer 🇺🇸 767 65 147ms 22 May 2021 710th lynn 767 78 152ms 16 Nov 2021 711th retrohun 766 63 102ms 23 Jan 2023 712th Shanethegamer 🇺🇸 766 93 57ms 12 Jan 2022 713th MeWhenI 🇻🇦 766 108 27ms 7 Jun 2023 714th SirBogman 🇺🇸 765 31 45ms 7 Oct 2022 715th Shanethegamer 🇺🇸 765 60 386ms 2 Jul 2021 715th alemelis 765 60 1,968ms 14 Aug 2024 717th albanian-laundromat 🇺🇸 764 60 1,006ms 1 Oct 2025 718th Waffle3z 764 61 10ms 20 Jan 2021 718th didion0 🇺🇸 764 61 12ms 9 Feb 2021 718th KrausRaus 🇺🇸 764 61 11ms 19 Feb 2021 First Prev 641–720 of 2,026 Next Last