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 641st apourchot 782 63 27ms 13 Feb 2021 641st neihousaigaai 782 63 11ms 10 Apr 2021 641st lechevalier 782 63 11ms 9 Aug 2021 641st commandz0 🇺🇸 782 63 13ms 19 Sep 2022 641st fourth-bit 782 63 12ms 21 Nov 2022 641st FortuiteMan 🇫🇷 782 63 38ms 8 Sep 2023 641st ssbhatt4321 782 63 27ms 14 Oct 2023 641st dokutan 782 63 18ms 1 Apr 2025 649th janbehrens 🇩🇪 782 91 57ms 20 Nov 2022 649th snyderek 🇺🇸 782 91 53ms 21 Nov 2024 649th dokutan 782 91 55ms 18 Jul 2025 652nd Waffle3z 781 54 37ms 19 Jan 2021 652nd olivermrose 🇺🇸 781 54 37ms 28 Sep 2021 652nd KatieLG 🇬🇧 781 54 37ms 9 Jan 2023 652nd Andriamanitra 🇫🇮 781 54 38ms 20 Jul 2023 656th GrayJoKing 🇦🇺 781 68 2ms 21 Jan 2021 656th m-tkach 🇺🇦 781 68 5ms 25 Apr 2022 656th MeWhenI 🇻🇦 781 68 2ms 11 Nov 2022 659th MeWhenI 🇻🇦 779 88 416ms 28 Feb 2022 660th Shanethegamer 🇺🇸 778 106 33ms 20 Jan 2025 661st rak1507 🇬🇧 777 60 11ms 20 Jan 2021 661st Shanethegamer 🇺🇸 777 60 11ms 26 Sep 2021 661st duckyluuk 🇳🇱 777 60 9ms 4 Oct 2024 664th anter69 🇭🇺 776 59 1,306ms 24 Feb 2023 664th SirBogman 🇺🇸 776 59 1,208ms 10 Jun 2024 666th commandz0 🇺🇸 775 62 417ms 15 Jan 2024 666th HumanoidCPU 775 62 409ms 3 Jun 2024 668th scpchicken 🇵🇼 774 48 3ms 15 Dec 2022 669th ovs-code 🇩🇪 774 142 12ms 31 Mar 2023 670th GrayJoKing 🇦🇺 771 55 147ms 6 Aug 2024 671st Shanethegamer 🇺🇸 771 89 457ms 26 Jul 2023 672nd mousetail 🇳🇱 771 98 111ms 3 Oct 2024 673rd NewDefectus 🇮🇱 770 24 4ms 25 Oct 2021 674th MeWhenI 🇻🇦 770 47 262ms 28 Jan 2023 675th RDShah 770 64 12ms 17 Jan 2021 675th andre-lameirinhas 🇵🇹 770 64 11ms 22 Feb 2021 675th stertooy 🇧🇪 770 64 11ms 10 Jun 2024 675th Terobero 770 64 22ms 6 Sep 2024 675th moustave 770 64 12ms 5 May 2025 675th Code-Coder-coder 770 64 11ms 25 Nov 2025 675th Lv0Sys 🇵🇱 770 64 11ms 4 Dec 2025 682nd LostSyntax21 🇬🇧 767 55 51ms 2 Oct 2024 683rd MeWhenI 🇻🇦 767 89 103ms 25 Dec 2022 684th retrohun 765 63 102ms 23 Jan 2023 685th Shanethegamer 🇺🇸 765 65 105ms 22 May 2021 686th lynn 765 78 150ms 16 Nov 2021 687th Shanethegamer 🇺🇸 765 93 57ms 12 Jan 2022 688th Waffle3z 764 61 10ms 20 Jan 2021 688th didion0 🇺🇸 764 61 10ms 9 Feb 2021 688th KrausRaus 🇺🇸 764 61 9ms 19 Feb 2021 688th tayloia 🇬🇧 764 61 11ms 29 May 2022 692nd MeWhenI 🇻🇦 764 108 27ms 7 Jun 2023 693rd SirBogman 🇺🇸 763 31 51ms 7 Oct 2022 694th Shanethegamer 🇺🇸 763 60 352ms 2 Jul 2021 694th alemelis 763 60 1,936ms 14 Aug 2024 696th dokutan 762 63 409ms 1 Apr 2025 697th DialFrost 🇸🇬 762 86 5ms 10 Oct 2023 698th kcinnu 🇱🇹 760 146 1,731ms 17 May 2024 699th albanian-laundromat 759 60 1,556ms 1 Oct 2025 700th c0d3-4-F00d 🇩🇪 759 70 2ms 18 Mar 2022 700th Alex-x90 🇺🇸 759 70 2ms 6 Mar 2023 700th dokutan 759 70 5ms 18 Jul 2025 703rd SirBogman 🇺🇸 759 86 115ms 24 Jan 2021 703rd strout 759 86 124ms 15 Dec 2023 705th TobyBoyne 🇬🇧 758 65 13ms 21 Jan 2021 705th 77Tigers 758 65 34ms 1 Mar 2021 705th knutae 🇳🇴 758 65 10ms 29 Jun 2021 705th ehulinsky 🇺🇸 758 65 15ms 10 Nov 2021 705th guilhem-roy 🇫🇷 758 65 12ms 28 Feb 2022 705th martinnorling 🇸🇪 758 65 11ms 8 Mar 2022 705th IshanPanpaliya 758 65 11ms 3 May 2023 705th nooberitess 758 65 12ms 8 Apr 2025 713th GolfingSuccess 🇬🇷 758 71 6ms 16 Oct 2023 713th Yewzir 🇧🇪 758 71 3ms 19 Nov 2025 715th duckyluuk 🇳🇱 756 73 8ms 16 Dec 2024 716th Shanethegamer 🇺🇸 754 63 4ms 13 Aug 2024 716th emgordon154 754 63 4ms 25 Aug 2024 718th ovs-code 🇩🇪 754 87 110ms 8 Mar 2024 719th RockOfStone 753 81 3ms 4 Nov 2021 719th dokutan 753 81 2ms 18 Jul 2025 First Prev 641–720 of 1,898 Next Last