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 Lily 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 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 381st thehylian 865 57 14ms 10 Jan 2023 381st 5cw 🇺🇸 865 57 12ms 10 Apr 2023 381st xsot 🇸🇬 865 57 25ms 26 Apr 2023 381st Rubiksmath 865 57 10ms 14 Aug 2023 381st bzijlema 🇳🇱 865 57 11ms 15 Nov 2023 381st janbehrens 🇩🇪 865 57 11ms 30 Dec 2023 381st mathisfun271 865 57 11ms 4 Feb 2024 381st thienudomsrirungruang 865 57 11ms 27 Apr 2024 381st Seek64 🇩🇪 865 57 11ms 19 Jun 2024 381st wuzekai518 865 57 11ms 2 Aug 2024 381st bizy-coder 865 57 35ms 14 Aug 2024 381st michaelmgreer 865 57 12ms 9 Oct 2025 381st cros107 🇦🇺 865 57 11ms 31 Dec 2025 381st KasperKivimaeki 🇫🇮 865 57 11ms 3 Jan 2026 381st blaztoma 🇱🇹 865 57 11ms 11 Jan 2026 381st ryyyn 🇺🇸 865 57 31ms 25 days ago 381st Flekay 🇩🇪 865 57 15ms 18 hours ago 418th stefangimmillaro 865 79 97ms 21 Jun 2023 419th janbehrens 🇩🇪 864 43 3ms 18 Jan 2021 420th Shanethegamer 🇺🇸 864 53 1,258ms 23 May 2021 420th MeWhenI 🇻🇦 864 53 1,291ms 16 Mar 2022 422nd DaCuteRaccoon 863 54 9ms 9 Dec 2022 423rd edsrzf 🇳🇿 862 53 1,416ms 31 Aug 2025 423rd DialFrost 🇸🇬 862 53 940ms 1 Sep 2025 423rd xsot 🇸🇬 862 53 1,044ms 21 Dec 2025 426th bitsandbeyond 🇳🇱 861 42 241ms 27 Oct 2025 427th sisyphus-ppcg 🇦🇺 861 56 2ms 12 Jul 2022 428th error256 861 72 62ms 11 Dec 2025 429th DialFrost 🇸🇬 861 76 3ms 14 Sep 2024 430th frosster 859 71 2ms 19 days ago 431st GrayJoKing 🇦🇺 859 96 33ms 18 Jan 2023 431st lynn 859 96 39ms 6 Aug 2023 433rd sean-niemann 🇺🇸 857 58 106ms 27 Apr 2024 434th Irratix 🇳🇱 857 62 2ms 20 Dec 2021 434th ovs-code 🇩🇪 857 62 2ms 8 May 2023 434th sean-niemann 🇺🇸 857 62 2ms 18 Dec 2023 437th inventshah 857 83 58ms 17 Nov 2022 437th ovs-code 🇩🇪 857 83 55ms 3 Jun 2024 437th DialFrost 🇸🇬 857 83 56ms 7 Nov 2025 440th Lydxn 🇨🇦 857 100 25ms 13 Oct 2023 441st primo-ppcg 🇹🇭 857 195 11ms 2 Aug 2023 442nd MeWhenI 🇻🇦 856 78 473ms 7 Nov 2025 443rd Lydxn 🇨🇦 854 63 2ms 15 Jan 2024 443rd JayXon 🇺🇸 854 63 4ms 29 Jan 2024 443rd rucin93 🇵🇱 854 63 2ms 19 Nov 2025 446th primo-ppcg 🇹🇭 854 78 122ms 27 Mar 2021 446th Shanethegamer 🇺🇸 854 78 125ms 18 Mar 2023 446th Ripick 854 78 172ms 2 Jun 2025 449th sean-niemann 🇺🇸 854 80 95ms 21 Sep 2023 449th Yewzir 🇧🇪 854 80 76ms 16 Nov 2023 451st snoozingnewt 🇨🇦 854 101 117ms 5 Dec 2025 452nd Yewzir 🇧🇪 854 130 1,746ms 27 Apr 2024 453rd Steffan153 🇫🇮 852 77 4ms 1 Nov 2023 454th MeWhenI 🇻🇦 852 84 40ms 29 Apr 2025 455th Shanethegamer 🇺🇸 851 67 2,205ms 27 Oct 2024 456th MeWhenI 🇻🇦 851 70 425ms 21 Nov 2021 457th kg583 🇺🇸 851 86 9ms 1 Sep 2025 458th ovs-code 🇩🇪 851 138 1,420ms 17 Feb 2025 459th Espiobest 850 58 11ms 13 Mar 2021 459th fgrosshans 🇫🇷 850 58 11ms 18 Jul 2022 459th MaxElf999 850 58 11ms 3 Oct 2022 459th Alex-x90 🇺🇸 850 58 30ms 23 Mar 2023 459th Natanaelel 🇸🇪 850 58 13ms 11 Apr 2023 459th InigoK 🇺🇸 850 58 28ms 28 May 2023 459th Kacarott 🇦🇺 850 58 28ms 13 Oct 2023 459th m42km 850 58 28ms 25 Nov 2023 459th StefanHabel 🇨🇦 850 58 13ms 20 Apr 2024 459th NickTheEASDude 🇺🇸 850 58 27ms 1 Jul 2024 459th namelessiw 850 58 30ms 27 Jul 2024 459th edsrzf 🇳🇿 850 58 20ms 22 Nov 2024 459th croc54 850 58 30ms 9 Jan 2025 459th andrewjc2000 850 58 29ms 11 Mar 2025 459th wuduculfre 850 58 30ms 22 Jul 2025 459th robin-scragg 850 58 13ms 21 Oct 2025 475th albanian-laundromat 850 77 9ms 22 Oct 2025 476th MeWhenI 🇻🇦 849 65 7ms 24 Dec 2024 477th ovs-code 🇩🇪 849 73 67ms 17 Sep 2023 478th sisyphus-ppcg 🇦🇺 848 89 123ms 25 Jan 2021 478th Bubbler-4 848 89 123ms 1 Jul 2021 480th snoozingnewt 🇨🇦 847 44 102ms 7 days ago First Prev 401–480 of 1,900 Next Last