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 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 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 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 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 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 241st GrayJoKing 🇦🇺 896 52 12ms 20 Jan 2021 241st janbehrens 🇩🇪 896 52 10ms 1 Aug 2021 241st inventshah 896 52 10ms 18 Jun 2022 241st dmrichwa 🇺🇸 896 52 10ms 28 Jul 2023 245th ovs-code 🇩🇪 896 53 9ms 30 Oct 2024 246th rak1507 🇬🇧 896 55 11ms 20 Jan 2021 246th GolfingSuccess 🇬🇷 896 55 14ms 25 Jan 2021 246th jacklynnepenick 896 55 10ms 19 Aug 2021 246th nwellnhof 🇩🇪 896 55 12ms 13 Jul 2022 246th jakobkordez 🇸🇮 896 55 17ms 8 Nov 2022 246th 2011-Chan-Ethan 896 55 11ms 20 Jul 2023 246th SB-945 896 55 11ms 20 Feb 2024 246th davecame 896 55 14ms 21 Aug 2024 246th albanian-laundromat 896 55 11ms 29 Mar 2025 246th 4atj 896 55 26ms 8 Apr 2025 246th plcc0 896 55 11ms 13 Jan 2026 257th Steffan153 🇫🇮 896 60 3ms 26 Jan 2024 257th sean-niemann 🇺🇸 896 60 2ms 31 Jan 2025 259th sean-niemann 🇺🇸 895 51 797ms 30 Aug 2025 259th Steffan153 🇫🇮 895 51 785ms 25 days ago 261st Steffan153 🇫🇮 894 96 304ms 10 Feb 2023 261st sean-niemann 🇺🇸 894 96 308ms 21 Sep 2023 263rd emplv 🇱🇻 892 72 117ms 28 Jul 2023 263rd Lydxn 🇨🇦 892 72 127ms 28 Jul 2023 265th CLOStrophobic 🇮🇹 892 82 56ms 24 Feb 2025 265th zacjl 892 82 10ms 24 Feb 2025 267th inventshah 891 64 2,302ms 27 Oct 2024 267th stefangimmillaro 891 64 2,244ms 13 Nov 2024 267th JayXon 🇺🇸 891 64 2,253ms 13 Nov 2024 267th pardouin 🇫🇷 891 64 2,267ms 22 days ago 271st GrayJoKing 🇦🇺 891 67 66ms 23 Mar 2023 271st IanUtley 891 67 68ms 9 May 2024 273rd sean-niemann 🇺🇸 891 77 469ms 26 Sep 2023 273rd Lydxn 🇨🇦 891 77 469ms 26 Sep 2023 273rd JayXon 🇺🇸 891 77 457ms 26 Sep 2023 276th Lydxn 🇨🇦 889 45 2ms 30 Oct 2022 276th sean-niemann 🇺🇸 889 45 2ms 31 Oct 2022 276th primo-ppcg 🇹🇭 889 45 2ms 7 Nov 2022 276th Steffan153 🇫🇮 889 45 2ms 11 Apr 2023 276th DialFrost 🇸🇬 889 45 2ms 21 Dec 2024 281st Yewzir 🇧🇪 889 54 392ms 15 Jan 2024 281st Shanethegamer 🇺🇸 889 54 420ms 16 Jan 2024 281st GrayJoKing 🇦🇺 889 54 430ms 23 Jul 2024 281st duckyluuk 🇳🇱 889 54 384ms 28 Aug 2024 281st KatieLG 🇬🇧 889 54 396ms 28 Oct 2024 281st GolfingSuccess 🇬🇷 889 54 414ms 25 Jan 2025 281st Babafaba 889 54 364ms 19 Nov 2025 281st snoozingnewt 🇨🇦 889 54 452ms 1 Dec 2025 289th prplz 🇦🇺 889 67 402ms 21 Nov 2021 289th DialFrost 🇸🇬 889 67 404ms 7 Nov 2025 291st Shanethegamer 🇺🇸 889 72 1,321ms 19 Jan 2025 292nd Lydxn 🇨🇦 888 75 124ms 12 Jul 2021 293rd zacjl 887 71 8ms 21 Oct 2024 294th JayXon 🇺🇸 887 77 92ms 19 Feb 2021 295th nwellnhof 🇩🇪 886 60 2ms 13 Jul 2022 295th emplv 🇱🇻 886 60 2ms 28 Jul 2023 297th Kacarott 🇦🇺 886 70 60ms 9 Dec 2025 297th GrayJoKing 🇦🇺 886 70 62ms 9 Dec 2025 299th GrayJoKing 🇦🇺 886 74 17ms 12 Feb 2023 300th GrayJoKing 🇦🇺 885 59 12ms 8 Aug 2023 301st inventshah 885 74 9ms 19 Sep 2022 302nd DialFrost 🇸🇬 885 97 299ms 7 Nov 2025 303rd o0lit3 🇺🇸 884 42 3ms 13 Jun 2022 303rd DaCuteRaccoon 884 42 4ms 9 Dec 2022 303rd DialFrost 🇸🇬 884 42 4ms 1 Feb 2023 303rd MeWhenI 🇻🇦 884 42 4ms 16 Apr 2023 303rd nwellnhof 🇩🇪 884 42 4ms 29 May 2023 303rd xsot 🇸🇬 884 42 4ms 27 Jun 2025 303rd blaztoma 🇱🇹 884 42 3ms 12 Jan 2026 310th lukegustafson 🇺🇸 884 48 156ms 17 Jun 2025 311th GrayJoKing 🇦🇺 884 69 1ms 9 Apr 2022 312th primo-ppcg 🇹🇭 884 81 39ms 2 May 2025 313th emplv 🇱🇻 883 97 26ms 27 Jul 2023 314th razetime 882 17 2ms 12 Jan 2022 315th DialFrost 🇸🇬 882 74 116ms 28 Apr 2025 316th sisyphus-ppcg 🇦🇺 881 45 6ms 17 Jan 2021 316th Lydxn 🇨🇦 881 45 5ms 17 Jan 2021 316th emplv 🇱🇻 881 45 5ms 17 Jan 2021 316th GrayJoKing 🇦🇺 881 45 6ms 21 Sep 2021 316th DaCuteRaccoon 881 45 5ms 9 Dec 2022 First Prev 241–320 of 1,912 Next Last