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 ><> ALGOL 68 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 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 ><> ALGOL 68 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 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 801st emgordon154 712 80 2,291ms 9 Aug 2025 802nd MeWhenI 🇻🇦 711 90 1,429ms 14 Jun 2023 803rd marcin7Cd 710 103 21ms 12 Feb 2021 804th Feniske 🇫🇷 709 51 270ms 21 Nov 2023 805th CaedenHarper 🇨🇦 709 84 435ms 17 Oct 2025 806th aadenboy 🇺🇸 709 86 2ms 16 Dec 2025 807th chordowl 709 92 116ms 17 Mar 2021 808th rucin93 🇵🇱 707 60 131ms 9 Aug 2024 809th omurakazuaki 🇯🇵 706 66 13ms 18 Feb 2021 809th BambooleanLogic 🇸🇪 706 66 11ms 22 Aug 2022 809th coreynash 706 66 10ms 21 Oct 2023 809th two-bad 🇬🇧 706 66 12ms 24 Nov 2023 809th dylanarmstrong 706 66 11ms 15 Jan 2024 809th madeforlosers 706 66 13ms 5 Nov 2025 815th Stockoh 🇫🇷 706 68 427ms 24 Jun 2024 815th JunkIce 706 68 442ms 3 Dec 2024 817th typeswitch-dev 🇵🇹 705 74 8ms 7 Aug 2023 818th antimon2 🇯🇵 704 65 495ms 19 Jan 2021 818th msbranicky 704 65 1,289ms 12 Sep 2023 820th osmith93 704 70 25ms 14 Jun 2021 820th ridingqwerty 🇺🇸 704 70 12ms 23 Feb 2024 820th mbittner20 704 70 11ms 15 Jul 2024 820th RaBa21 🇭🇺 704 70 12ms 18 Jul 2025 824th Shanethegamer 🇺🇸 704 91 39ms 16 Jun 2022 825th Herbert00709 🇵🇱 704 101 56ms 19 Nov 2024 826th SnowballSH 703 60 36ms 12 Feb 2021 826th aksyristos 703 60 41ms 28 Feb 2023 826th Lv0Sys 🇵🇱 703 60 37ms 4 Dec 2025 829th primo-ppcg 🇹🇭 702 47 1,032ms 5 Feb 2022 830th MeWhenI 🇻🇦 702 238 12ms 29 Aug 2023 831st UnderKoen 🇳🇱 700 134 13ms 20 Jan 2025 832nd jared-hughes 699 44 6ms 31 Jul 2022 833rd NewDefectus 🇮🇱 699 76 2ms 25 Oct 2021 833rd JohandeRuiter 🇳🇱 699 76 2ms 3 Dec 2023 835th Shanethegamer 🇺🇸 699 77 13ms 9 Oct 2023 836th targrik 698 123 299ms 10 Jul 2025 837th jared-hughes 698 159 1,670ms 16 Sep 2025 838th AlephSquirrel 696 34 49ms 30 Dec 2022 839th neihousaigaai 696 67 11ms 10 Apr 2021 840th Jacob385 696 69 436ms 22 Apr 2024 841st targrik 695 57 5ms 26 Aug 2025 842nd SnowballSH 694 71 11ms 12 Feb 2021 842nd Andre3582 694 71 11ms 18 Mar 2021 842nd PhysicDev 🇫🇷 694 71 10ms 20 May 2021 842nd Alban-Boissard 694 71 12ms 10 Jun 2025 846th boxjelly 694 94 114ms 21 Jan 2021 846th YAJUE114514 694 94 133ms 24 Jul 2025 848th edsrzf 🇳🇿 692 91 22ms 21 Dec 2024 849th Espiobest 691 61 38ms 13 Feb 2021 849th DaCuteRaccoon 691 61 37ms 9 Dec 2022 851st JGDoerrer 691 103 402ms 5 Jan 2022 851st tailorspy 691 103 58ms 29 Oct 2023 853rd Shanethegamer 🇺🇸 690 106 17ms 4 Oct 2024 854th msbranicky 689 95 5ms 11 Aug 2023 855th NewDefectus 🇮🇱 688 32 34ms 20 Dec 2021 856th GolfingSuccess 🇬🇷 688 69 33ms 17 Aug 2024 857th Andriamanitra 🇫🇮 687 95 148ms 20 Jul 2023 858th KasperKivimaeki 🇫🇮 687 125 302ms 3 Oct 2025 859th msbranicky 685 89 2ms 26 Sep 2023 860th LeeCamp 684 72 10ms 16 Feb 2022 860th LukasFolwarczny 🇨🇿 684 72 10ms 16 Sep 2022 860th CutSandstone 684 72 38ms 8 Jul 2024 863rd Shanethegamer 🇺🇸 680 126 24ms 8 Jul 2021 864th dokutan 678 59 3ms 18 Jul 2025 865th Yewzir 🇧🇪 677 88 421ms 14 Oct 2023 866th jared-hughes 676 35 44ms 31 Jul 2022 866th Natanaelel 🇸🇪 676 35 51ms 18 Aug 2022 868th SirBogman 🇺🇸 676 44 197ms 22 Oct 2021 869th richard-oelze 🇩🇪 675 73 30ms 4 Apr 2021 869th mauro-1 🇮🇹 675 73 9ms 18 Aug 2021 869th gchenfc 675 73 9ms 24 Jan 2022 869th hiichbindermax 675 73 11ms 26 Feb 2022 869th Omega65536 🇩🇪 675 73 11ms 24 Nov 2022 869th sandorstormen 675 73 11ms 18 Feb 2023 869th Mr-McChicken 675 73 10ms 15 Oct 2023 869th Masttest 675 73 10ms 21 Feb 2024 877th dokutan 675 99 372ms 24 Sep 2025 878th janbehrens 🇩🇪 673 68 1,239ms 9 Apr 2021 879th madex 🇩🇪 673 79 2ms 11 Jul 2024 880th msbranicky 672 80 4ms 11 Oct 2023 First Prev 801–880 of 1,901 Next Last