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 799th trist224 🇫🇷 725 68 49ms 18 Oct 2022 799th mousetail 🇳🇱 725 68 33ms 11 Aug 2023 799th Command-Master 725 68 39ms 24 Sep 2023 799th JunkIce 725 68 19ms 24 Nov 2024 799th madex 🇩🇪 725 68 26ms 6 days ago 806th Yewzir 🇧🇪 722 91 2ms 28 Mar 2024 807th Alex-x90 🇺🇸 719 99 470ms 23 Jun 2022 808th GolfingSuccess 🇬🇷 718 33 49ms 22 Jul 2022 809th Shanethegamer 🇺🇸 718 74 2ms 18 May 2022 810th MeWhenI 🇻🇦 718 75 8ms 9 Oct 2023 811th prplz 🇦🇺 718 91 118ms 25 Jan 2021 812th igmcdowell 717 65 12ms 23 Nov 2021 813th msbranicky 717 67 515ms 17 Jan 2024 814th marshallward 🇺🇸 717 100 41ms 7 May 2025 815th tatzyr 🇯🇵 716 59 37ms 29 Dec 2024 816th prplz 🇦🇺 715 52 3ms 5 Feb 2021 817th NewDefectus 🇮🇱 714 21 2ms 14 Jan 2022 818th abailey2020 🇺🇸 714 69 12ms 19 Feb 2021 818th Anonymousellama21 714 69 11ms 15 May 2022 818th TaserTheFox 🇺🇸 714 69 49ms 16 Feb 2023 818th Jacob385 714 69 46ms 22 Apr 2024 822nd emgordon154 714 80 2,397ms 9 Aug 2025 823rd MeWhenI 🇻🇦 713 90 1,365ms 14 Jun 2023 824th marcin7Cd 712 103 23ms 12 Feb 2021 825th aadenboy 🇺🇸 711 86 2ms 16 Dec 2025 826th Feniske 🇫🇷 710 51 240ms 21 Nov 2023 827th CaedenHarper 🇨🇦 710 84 392ms 17 Oct 2025 828th chordowl 710 92 116ms 17 Mar 2021 829th rucin93 🇵🇱 708 60 143ms 9 Aug 2024 830th vang1ong7ang 708 107 172ms 4 days ago 831st omurakazuaki 🇯🇵 707 66 11ms 18 Feb 2021 831st BambooleanLogic 🇸🇪 707 66 10ms 22 Aug 2022 831st coreynash 707 66 11ms 21 Oct 2023 831st two-bad 🇬🇧 707 66 15ms 24 Nov 2023 831st dylanarmstrong 707 66 12ms 15 Jan 2024 831st madeforlosers 707 66 9ms 5 Nov 2025 837th Stockoh 🇫🇷 707 68 476ms 24 Jun 2024 837th JunkIce 707 68 407ms 3 Dec 2024 839th typeswitch-dev 🇵🇹 707 74 8ms 7 Aug 2023 840th Shanethegamer 🇺🇸 706 91 39ms 16 Jun 2022 841st antimon2 🇯🇵 705 65 517ms 19 Jan 2021 841st msbranicky 705 65 1,289ms 12 Sep 2023 843rd Herbert00709 🇵🇱 705 101 62ms 19 Nov 2024 844th MeWhenI 🇻🇦 705 238 12ms 29 Aug 2023 845th SnowballSH 704 60 36ms 12 Feb 2021 845th aksyristos 704 60 37ms 28 Feb 2023 845th Lv0Sys 🇵🇱 704 60 40ms 4 Dec 2025 848th osmith93 704 70 24ms 14 Jun 2021 848th ridingqwerty 🇺🇸 704 70 12ms 23 Feb 2024 848th mbittner20 704 70 11ms 15 Jul 2024 848th RaBa21 🇭🇺 704 70 13ms 18 Jul 2025 852nd primo-ppcg 🇹🇭 703 47 1,032ms 5 Feb 2022 853rd UnderKoen 🇳🇱 702 134 13ms 20 Jan 2025 854th Shanethegamer 🇺🇸 700 77 13ms 9 Oct 2023 855th jared-hughes 700 159 1,670ms 16 Sep 2025 856th jared-hughes 699 44 6ms 31 Jul 2022 857th NewDefectus 🇮🇱 699 76 2ms 25 Oct 2021 857th JohandeRuiter 🇳🇱 699 76 2ms 3 Dec 2023 857th madex 🇩🇪 699 76 3ms 43 hours ago 860th targrik 699 123 338ms 10 Jul 2025 861st AlephSquirrel 697 34 49ms 30 Dec 2022 862nd Jacob385 697 69 470ms 22 Apr 2024 863rd targrik 696 57 6ms 26 Aug 2025 864th neihousaigaai 696 67 10ms 10 Apr 2021 865th boxjelly 695 94 114ms 21 Jan 2021 865th YAJUE114514 695 94 130ms 24 Jul 2025 867th SnowballSH 694 71 12ms 12 Feb 2021 867th Andre3582 694 71 13ms 18 Mar 2021 867th PhysicDev 🇫🇷 694 71 11ms 20 May 2021 867th Alban-Boissard 694 71 14ms 10 Jun 2025 871st Espiobest 692 61 34ms 13 Feb 2021 871st DaCuteRaccoon 692 61 42ms 9 Dec 2022 873rd msbranicky 691 95 5ms 11 Aug 2023 874th JGDoerrer 691 103 470ms 5 Jan 2022 874th tailorspy 691 103 59ms 29 Oct 2023 876th Shanethegamer 🇺🇸 691 106 18ms 4 Oct 2024 877th GolfingSuccess 🇬🇷 689 69 33ms 17 Aug 2024 878th NewDefectus 🇮🇱 688 32 34ms 20 Dec 2021 879th Andriamanitra 🇫🇮 688 95 148ms 20 Jul 2023 880th KasperKivimaeki 🇫🇮 688 125 346ms 3 Oct 2025 First Prev 801–880 of 2,002 Next Last