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 235th Steffan153 🇫🇮 899 73 12ms 8 days ago 242nd stefangimmillaro 898 47 42ms 23 Mar 2023 242nd Natanaelel 🇸🇪 898 47 36ms 11 Apr 2023 242nd m-tkach 🇺🇦 898 47 36ms 16 Jun 2023 245th ovs-code 🇩🇪 898 53 9ms 30 Oct 2024 246th Steffan153 🇫🇮 898 60 2ms 26 Jan 2024 246th sean-niemann 🇺🇸 898 60 3ms 31 Jan 2025 248th sean-niemann 🇺🇸 897 51 1,060ms 30 Aug 2025 248th Steffan153 🇫🇮 897 51 1,125ms 14 Feb 2026 250th GrayJoKing 🇦🇺 897 52 11ms 20 Jan 2021 250th janbehrens 🇩🇪 897 52 12ms 1 Aug 2021 250th inventshah 897 52 12ms 18 Jun 2022 250th dmrichwa 🇺🇸 897 52 12ms 28 Jul 2023 254th rak1507 🇬🇧 896 55 12ms 20 Jan 2021 254th GolfingSuccess 🇬🇷 896 55 15ms 25 Jan 2021 254th jacklynnepenick 896 55 14ms 19 Aug 2021 254th nwellnhof 🇩🇪 896 55 13ms 13 Jul 2022 254th jakobkordez 🇸🇮 896 55 17ms 8 Nov 2022 254th 2011-Chan-Ethan 896 55 12ms 20 Jul 2023 254th SB-945 896 55 11ms 20 Feb 2024 254th davecame 896 55 14ms 21 Aug 2024 254th albanian-laundromat 🇺🇸 896 55 11ms 29 Mar 2025 254th 4atj 896 55 29ms 8 Apr 2025 254th plcc0 896 55 12ms 13 Jan 2026 265th Steffan153 🇫🇮 895 96 320ms 10 Feb 2023 265th sean-niemann 🇺🇸 895 96 347ms 21 Sep 2023 267th emplv 🇱🇻 894 72 109ms 28 Jul 2023 267th Lydxn 🇨🇦 894 72 110ms 28 Jul 2023 269th CLOStrophobic 🇮🇹 894 82 60ms 24 Feb 2025 269th zacjl 894 82 9ms 24 Feb 2025 271st inventshah 893 64 2,430ms 27 Oct 2024 271st stefangimmillaro 893 64 2,331ms 13 Nov 2024 271st JayXon 🇺🇸 893 64 2,395ms 13 Nov 2024 271st pardouin 🇫🇷 893 64 2,260ms 16 Feb 2026 275th GrayJoKing 🇦🇺 893 67 64ms 23 Mar 2023 275th IanUtley 893 67 66ms 9 May 2024 277th sean-niemann 🇺🇸 892 77 469ms 26 Sep 2023 277th Lydxn 🇨🇦 892 77 469ms 26 Sep 2023 277th JayXon 🇺🇸 892 77 457ms 26 Sep 2023 277th Steffan153 🇫🇮 892 77 464ms 8 days ago 281st Shanethegamer 🇺🇸 891 72 1,444ms 19 Jan 2025 282nd JayXon 🇺🇸 891 77 97ms 19 Feb 2021 283rd Lydxn 🇨🇦 890 45 2ms 30 Oct 2022 283rd sean-niemann 🇺🇸 890 45 2ms 31 Oct 2022 283rd primo-ppcg 🇹🇭 890 45 2ms 7 Nov 2022 283rd Steffan153 🇫🇮 890 45 2ms 11 Apr 2023 283rd DialFrost 🇸🇬 890 45 2ms 21 Dec 2024 288th Yewzir 🇧🇪 890 54 380ms 15 Jan 2024 288th Shanethegamer 🇺🇸 890 54 471ms 16 Jan 2024 288th GrayJoKing 🇦🇺 890 54 409ms 23 Jul 2024 288th duckyluuk 🇳🇱 890 54 505ms 28 Aug 2024 288th KatieLG 🇬🇧 890 54 400ms 28 Oct 2024 288th GolfingSuccess 🇬🇷 890 54 414ms 25 Jan 2025 288th Babafaba 890 54 432ms 19 Nov 2025 288th snoozingnewt 🇨🇦 890 54 417ms 1 Dec 2025 296th prplz 🇦🇺 890 67 394ms 21 Nov 2021 296th DialFrost 🇸🇬 890 67 377ms 7 Nov 2025 298th zacjl 890 70 8ms 11 Mar 2026 299th Lydxn 🇨🇦 890 75 124ms 12 Jul 2021 300th Kacarott 🇦🇺 888 70 60ms 9 Dec 2025 300th GrayJoKing 🇦🇺 888 70 62ms 9 Dec 2025 302nd GrayJoKing 🇦🇺 888 74 17ms 12 Feb 2023 303rd GrayJoKing 🇦🇺 887 59 12ms 8 Aug 2023 304th inventshah 887 74 9ms 19 Sep 2022 305th emplv 🇱🇻 887 97 26ms 27 Jul 2023 306th lukegustafson 🇺🇸 886 48 164ms 17 Jun 2025 307th nwellnhof 🇩🇪 886 60 2ms 13 Jul 2022 307th emplv 🇱🇻 886 60 2ms 28 Jul 2023 309th GrayJoKing 🇦🇺 886 69 1ms 9 Apr 2022 310th primo-ppcg 🇹🇭 886 81 39ms 2 May 2025 311th DialFrost 🇸🇬 886 97 408ms 7 Nov 2025 312th o0lit3 🇺🇸 885 42 3ms 13 Jun 2022 312th DaCuteRaccoon 885 42 4ms 9 Dec 2022 312th DialFrost 🇸🇬 885 42 4ms 1 Feb 2023 312th MeWhenI 🇻🇦 885 42 3ms 16 Apr 2023 312th nwellnhof 🇩🇪 885 42 3ms 29 May 2023 312th xsot 🇸🇬 885 42 4ms 27 Jun 2025 312th blaztoma 🇱🇹 885 42 3ms 12 Jan 2026 319th DialFrost 🇸🇬 883 74 116ms 28 Apr 2025 320th razetime 882 17 2ms 12 Jan 2022 First Prev 241–320 of 1,997 Next Last