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 797th Command-Master 725 68 39ms 24 Sep 2023 797th JunkIce 725 68 19ms 24 Nov 2024 797th madex 🇩🇪 725 68 26ms 5 days ago 804th Yewzir 🇧🇪 722 91 2ms 28 Mar 2024 805th Alex-x90 🇺🇸 719 99 470ms 23 Jun 2022 806th GolfingSuccess 🇬🇷 718 33 49ms 22 Jul 2022 807th Shanethegamer 🇺🇸 718 74 2ms 18 May 2022 808th MeWhenI 🇻🇦 718 75 8ms 9 Oct 2023 809th prplz 🇦🇺 718 91 118ms 25 Jan 2021 810th igmcdowell 717 65 12ms 23 Nov 2021 811th msbranicky 717 67 515ms 17 Jan 2024 812th marshallward 🇺🇸 717 100 41ms 7 May 2025 813th tatzyr 🇯🇵 716 59 37ms 29 Dec 2024 814th prplz 🇦🇺 715 52 3ms 5 Feb 2021 815th NewDefectus 🇮🇱 714 21 2ms 14 Jan 2022 816th abailey2020 🇺🇸 714 69 12ms 19 Feb 2021 816th Anonymousellama21 714 69 11ms 15 May 2022 816th TaserTheFox 🇺🇸 714 69 49ms 16 Feb 2023 816th Jacob385 714 69 46ms 22 Apr 2024 820th emgordon154 714 80 2,397ms 9 Aug 2025 821st MeWhenI 🇻🇦 713 90 1,365ms 14 Jun 2023 822nd marcin7Cd 712 103 23ms 12 Feb 2021 823rd aadenboy 🇺🇸 711 86 2ms 16 Dec 2025 824th Feniske 🇫🇷 710 51 240ms 21 Nov 2023 825th CaedenHarper 🇨🇦 710 84 392ms 17 Oct 2025 826th chordowl 710 92 116ms 17 Mar 2021 827th rucin93 🇵🇱 708 60 143ms 9 Aug 2024 828th vang1ong7ang 708 107 172ms 3 days ago 829th Stockoh 🇫🇷 707 68 476ms 24 Jun 2024 829th JunkIce 707 68 407ms 3 Dec 2024 831st typeswitch-dev 🇵🇹 707 74 8ms 7 Aug 2023 832nd omurakazuaki 🇯🇵 706 66 11ms 18 Feb 2021 832nd BambooleanLogic 🇸🇪 706 66 10ms 22 Aug 2022 832nd coreynash 706 66 11ms 21 Oct 2023 832nd two-bad 🇬🇧 706 66 15ms 24 Nov 2023 832nd dylanarmstrong 706 66 12ms 15 Jan 2024 832nd madeforlosers 706 66 9ms 5 Nov 2025 838th Shanethegamer 🇺🇸 706 91 39ms 16 Jun 2022 839th antimon2 🇯🇵 705 65 517ms 19 Jan 2021 839th msbranicky 705 65 1,289ms 12 Sep 2023 841st Herbert00709 🇵🇱 705 101 62ms 19 Nov 2024 842nd MeWhenI 🇻🇦 705 238 12ms 29 Aug 2023 843rd SnowballSH 704 60 36ms 12 Feb 2021 843rd aksyristos 704 60 37ms 28 Feb 2023 843rd Lv0Sys 🇵🇱 704 60 40ms 4 Dec 2025 846th osmith93 704 70 24ms 14 Jun 2021 846th ridingqwerty 🇺🇸 704 70 12ms 23 Feb 2024 846th mbittner20 704 70 11ms 15 Jul 2024 846th RaBa21 🇭🇺 704 70 13ms 18 Jul 2025 850th primo-ppcg 🇹🇭 703 47 1,032ms 5 Feb 2022 851st UnderKoen 🇳🇱 702 134 13ms 20 Jan 2025 852nd Shanethegamer 🇺🇸 700 77 13ms 9 Oct 2023 853rd jared-hughes 700 159 1,670ms 16 Sep 2025 854th jared-hughes 699 44 6ms 31 Jul 2022 855th NewDefectus 🇮🇱 699 76 2ms 25 Oct 2021 855th JohandeRuiter 🇳🇱 699 76 2ms 3 Dec 2023 855th madex 🇩🇪 699 76 3ms 25 hours ago 858th targrik 699 123 338ms 10 Jul 2025 859th AlephSquirrel 697 34 49ms 30 Dec 2022 860th Jacob385 697 69 470ms 22 Apr 2024 861st targrik 696 57 6ms 26 Aug 2025 862nd neihousaigaai 696 67 10ms 10 Apr 2021 863rd boxjelly 695 94 114ms 21 Jan 2021 863rd YAJUE114514 695 94 130ms 24 Jul 2025 865th SnowballSH 694 71 12ms 12 Feb 2021 865th Andre3582 694 71 13ms 18 Mar 2021 865th PhysicDev 🇫🇷 694 71 11ms 20 May 2021 865th Alban-Boissard 694 71 14ms 10 Jun 2025 869th Espiobest 692 61 34ms 13 Feb 2021 869th DaCuteRaccoon 692 61 42ms 9 Dec 2022 871st msbranicky 691 95 5ms 11 Aug 2023 872nd JGDoerrer 691 103 470ms 5 Jan 2022 872nd tailorspy 691 103 59ms 29 Oct 2023 874th Shanethegamer 🇺🇸 691 106 18ms 4 Oct 2024 875th GolfingSuccess 🇬🇷 689 69 33ms 17 Aug 2024 876th NewDefectus 🇮🇱 688 32 34ms 20 Dec 2021 877th Andriamanitra 🇫🇮 688 95 148ms 20 Jul 2023 878th KasperKivimaeki 🇫🇮 688 125 346ms 3 Oct 2025 879th msbranicky 687 89 2ms 26 Sep 2023 880th LeeCamp 685 72 12ms 16 Feb 2022 First Prev 801–880 of 2,000 Next Last