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 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 ><> 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 ALGOL 68 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 ><> 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 ALGOL 68 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 Chars Time Submitted 640th neihousaigaai 782 63 11ms 10 Apr 2021 640th lechevalier 782 63 11ms 9 Aug 2021 640th commandz0 🇺🇸 782 63 13ms 19 Sep 2022 640th fourth-bit 782 63 12ms 21 Nov 2022 640th FortuiteMan 🇫🇷 782 63 38ms 8 Sep 2023 640th ssbhatt4321 782 63 27ms 14 Oct 2023 640th dokutan 782 63 18ms 1 Apr 2025 648th janbehrens 🇩🇪 782 91 57ms 20 Nov 2022 648th snyderek 🇺🇸 782 91 53ms 21 Nov 2024 648th dokutan 782 91 55ms 18 Jul 2025 651st Waffle3z 781 54 37ms 19 Jan 2021 651st olivermrose 🇺🇸 781 54 37ms 28 Sep 2021 651st KatieLG 🇬🇧 781 54 37ms 9 Jan 2023 651st Andriamanitra 🇫🇮 781 54 38ms 20 Jul 2023 655th GrayJoKing 🇦🇺 781 68 2ms 21 Jan 2021 655th m-tkach 🇺🇦 781 68 5ms 25 Apr 2022 655th MeWhenI 🇻🇦 781 68 2ms 11 Nov 2022 658th MeWhenI 🇻🇦 779 88 416ms 28 Feb 2022 659th Shanethegamer 🇺🇸 778 106 33ms 20 Jan 2025 660th rak1507 🇬🇧 777 60 10ms 20 Jan 2021 660th Shanethegamer 🇺🇸 777 60 9ms 26 Sep 2021 660th duckyluuk 🇳🇱 777 60 10ms 4 Oct 2024 663rd anter69 🇭🇺 776 59 1,306ms 24 Feb 2023 663rd SirBogman 🇺🇸 776 59 1,208ms 10 Jun 2024 665th commandz0 🇺🇸 775 62 417ms 15 Jan 2024 665th HumanoidCPU 775 62 409ms 3 Jun 2024 667th scpchicken 🇵🇼 774 48 3ms 15 Dec 2022 668th ovs-code 🇩🇪 774 142 12ms 31 Mar 2023 669th GrayJoKing 🇦🇺 771 55 147ms 6 Aug 2024 670th Shanethegamer 🇺🇸 771 89 457ms 26 Jul 2023 671st mousetail 🇳🇱 771 98 111ms 3 Oct 2024 672nd NewDefectus 🇮🇱 770 24 4ms 25 Oct 2021 673rd MeWhenI 🇻🇦 770 47 262ms 28 Jan 2023 674th RDShah 770 64 12ms 17 Jan 2021 674th andre-lameirinhas 🇵🇹 770 64 11ms 22 Feb 2021 674th stertooy 🇧🇪 770 64 11ms 10 Jun 2024 674th Terobero 770 64 22ms 6 Sep 2024 674th moustave 770 64 12ms 5 May 2025 674th Code-Coder-coder 770 64 11ms 25 Nov 2025 674th Lv0Sys 🇵🇱 770 64 11ms 4 Dec 2025 681st LostSyntax21 🇬🇧 767 55 51ms 2 Oct 2024 682nd MeWhenI 🇻🇦 767 89 103ms 25 Dec 2022 683rd retrohun 765 63 102ms 23 Jan 2023 684th Shanethegamer 🇺🇸 765 65 105ms 22 May 2021 685th lynn 765 78 150ms 16 Nov 2021 686th Shanethegamer 🇺🇸 765 93 57ms 12 Jan 2022 687th Waffle3z 764 61 9ms 20 Jan 2021 687th didion0 🇺🇸 764 61 10ms 9 Feb 2021 687th KrausRaus 🇺🇸 764 61 11ms 19 Feb 2021 687th tayloia 🇬🇧 764 61 10ms 29 May 2022 691st MeWhenI 🇻🇦 764 108 27ms 7 Jun 2023 692nd SirBogman 🇺🇸 763 31 51ms 7 Oct 2022 693rd Shanethegamer 🇺🇸 763 60 352ms 2 Jul 2021 693rd alemelis 763 60 1,936ms 14 Aug 2024 695th dokutan 762 63 409ms 1 Apr 2025 696th DialFrost 🇸🇬 762 86 5ms 10 Oct 2023 697th kcinnu 🇱🇹 760 146 1,731ms 17 May 2024 698th albanian-laundromat 759 60 1,556ms 1 Oct 2025 699th c0d3-4-F00d 🇩🇪 759 70 2ms 18 Mar 2022 699th Alex-x90 🇺🇸 759 70 2ms 6 Mar 2023 699th dokutan 759 70 5ms 18 Jul 2025 702nd SirBogman 🇺🇸 759 86 115ms 24 Jan 2021 702nd strout 759 86 124ms 15 Dec 2023 704th TobyBoyne 🇬🇧 758 65 13ms 21 Jan 2021 704th 77Tigers 758 65 34ms 1 Mar 2021 704th knutae 🇳🇴 758 65 10ms 29 Jun 2021 704th ehulinsky 🇺🇸 758 65 15ms 10 Nov 2021 704th guilhem-roy 🇫🇷 758 65 12ms 28 Feb 2022 704th martinnorling 🇸🇪 758 65 11ms 8 Mar 2022 704th IshanPanpaliya 758 65 11ms 3 May 2023 704th nooberitess 758 65 12ms 8 Apr 2025 712th GolfingSuccess 🇬🇷 758 71 6ms 16 Oct 2023 712th Yewzir 🇧🇪 758 71 3ms 19 Nov 2025 714th duckyluuk 🇳🇱 756 73 8ms 16 Dec 2024 715th Shanethegamer 🇺🇸 754 63 4ms 13 Aug 2024 715th emgordon154 754 63 4ms 25 Aug 2024 717th ovs-code 🇩🇪 754 87 110ms 8 Mar 2024 718th RockOfStone 753 81 3ms 4 Nov 2021 718th dokutan 753 81 2ms 18 Jul 2025 720th lynn 753 85 1,383ms 12 Sep 2021 First Prev 641–720 of 1,895 Next Last