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 ><> 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 ALGOL 68 APL ArkScript Arturo Befunge BQN CJam CoffeeScript Egel Fennel Harbour Hare Haxe Hush Hy iogii Knight Luau Odin Picat Qore Racket Rebol Rexx Scala Squirrel Stax Uiua Umka Vala Vyxal Bytes Chars Scoring Bytes Chars Language All ><> 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 ALGOL 68 APL ArkScript Arturo Befunge BQN CJam CoffeeScript Egel Fennel Harbour Hare Haxe Hush Hy iogii Knight 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 378th Rubiksmath 865 57 11ms 14 Aug 2023 378th bzijlema 🇳🇱 865 57 10ms 15 Nov 2023 378th janbehrens 🇩🇪 865 57 10ms 30 Dec 2023 378th mathisfun271 865 57 10ms 4 Feb 2024 378th thienudomsrirungruang 865 57 10ms 27 Apr 2024 378th Seek64 🇩🇪 865 57 11ms 19 Jun 2024 378th wuzekai518 865 57 10ms 2 Aug 2024 378th bizy-coder 865 57 31ms 14 Aug 2024 378th michaelmgreer 865 57 10ms 9 Oct 2025 378th cros107 🇦🇺 865 57 11ms 31 Dec 2025 378th KasperKivimaeki 🇫🇮 865 57 11ms 3 Jan 2026 378th blaztoma 🇱🇹 865 57 11ms 20 days ago 378th ryyyn 🇺🇸 865 57 32ms 10 days ago 414th stefangimmillaro 865 79 97ms 21 Jun 2023 415th janbehrens 🇩🇪 864 43 3ms 18 Jan 2021 416th Shanethegamer 🇺🇸 864 53 1,258ms 23 May 2021 416th MeWhenI 🇻🇦 864 53 1,291ms 16 Mar 2022 418th DaCuteRaccoon 863 54 10ms 9 Dec 2022 419th bitsandbeyond 🇳🇱 861 42 241ms 27 Oct 2025 420th sisyphus-ppcg 🇦🇺 861 56 2ms 12 Jul 2022 421st error256 861 72 62ms 11 Dec 2025 422nd DialFrost 🇸🇬 861 76 3ms 14 Sep 2024 423rd edsrzf 🇳🇿 859 53 1,416ms 31 Aug 2025 423rd DialFrost 🇸🇬 859 53 940ms 1 Sep 2025 423rd xsot 🇸🇬 859 53 1,044ms 21 Dec 2025 426th frosster 859 71 2ms 4 days ago 427th GrayJoKing 🇦🇺 859 96 33ms 18 Jan 2023 427th lynn 859 96 39ms 6 Aug 2023 429th sean-niemann 🇺🇸 857 58 106ms 27 Apr 2024 430th Irratix 🇳🇱 857 62 2ms 20 Dec 2021 430th ovs-code 🇩🇪 857 62 2ms 8 May 2023 430th sean-niemann 🇺🇸 857 62 2ms 18 Dec 2023 433rd primo-ppcg 🇹🇭 857 195 11ms 2 Aug 2023 434th MeWhenI 🇻🇦 856 78 473ms 7 Nov 2025 435th inventshah 856 83 58ms 17 Nov 2022 435th ovs-code 🇩🇪 856 83 55ms 3 Jun 2024 435th DialFrost 🇸🇬 856 83 56ms 7 Nov 2025 438th Lydxn 🇨🇦 855 100 25ms 13 Oct 2023 439th Lydxn 🇨🇦 854 63 2ms 15 Jan 2024 439th JayXon 🇺🇸 854 63 4ms 29 Jan 2024 439th rucin93 🇵🇱 854 63 2ms 19 Nov 2025 442nd primo-ppcg 🇹🇭 854 78 122ms 27 Mar 2021 442nd Shanethegamer 🇺🇸 854 78 125ms 18 Mar 2023 442nd Ripick 854 78 172ms 2 Jun 2025 445th sean-niemann 🇺🇸 854 80 95ms 21 Sep 2023 445th Yewzir 🇧🇪 854 80 76ms 16 Nov 2023 447th snoozingnewt 🇨🇦 854 101 117ms 5 Dec 2025 448th Yewzir 🇧🇪 854 130 1,746ms 27 Apr 2024 449th Steffan153 🇫🇮 852 77 4ms 1 Nov 2023 450th MeWhenI 🇻🇦 852 84 40ms 29 Apr 2025 451st Shanethegamer 🇺🇸 851 67 2,996ms 27 Oct 2024 451st pardouin 🇫🇷 851 67 3,756ms 23 Dec 2024 453rd MeWhenI 🇻🇦 851 70 425ms 21 Nov 2021 454th kg583 🇺🇸 851 86 9ms 1 Sep 2025 455th ovs-code 🇩🇪 851 138 1,409ms 17 Feb 2025 456th Espiobest 850 58 10ms 13 Mar 2021 456th fgrosshans 🇫🇷 850 58 12ms 18 Jul 2022 456th MaxElf999 850 58 10ms 3 Oct 2022 456th Alex-x90 🇺🇸 850 58 28ms 23 Mar 2023 456th Natanaelel 🇸🇪 850 58 11ms 11 Apr 2023 456th InigoK 🇺🇸 850 58 28ms 28 May 2023 456th Kacarott 🇦🇺 850 58 28ms 13 Oct 2023 456th m42km 850 58 29ms 25 Nov 2023 456th StefanHabel 🇨🇦 850 58 12ms 20 Apr 2024 456th NickTheEASDude 🇺🇸 850 58 29ms 1 Jul 2024 456th namelessiw 850 58 29ms 27 Jul 2024 456th edsrzf 🇳🇿 850 58 19ms 22 Nov 2024 456th croc54 850 58 28ms 9 Jan 2025 456th andrewjc2000 850 58 30ms 11 Mar 2025 456th wuduculfre 850 58 29ms 22 Jul 2025 456th robin-scragg 850 58 11ms 21 Oct 2025 472nd albanian-laundromat 850 77 9ms 22 Oct 2025 473rd MeWhenI 🇻🇦 849 65 7ms 24 Dec 2024 474th ovs-code 🇩🇪 849 73 67ms 17 Sep 2023 475th sisyphus-ppcg 🇦🇺 848 89 117ms 25 Jan 2021 475th Bubbler-4 848 89 124ms 1 Jul 2021 477th jared-hughes 847 55 10ms 31 Jul 2022 477th emgordon154 847 55 10ms 4 Mar 2025 479th ovs-code 🇩🇪 847 81 468ms 15 Jun 2024 480th emgordon154 847 131 1,613ms 29 Nov 2024 First Prev 401–480 of 1,891 Next Last