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 561st inventshah 817 59 2ms 18 May 2022 561st MeWhenI 🇻🇦 817 59 2ms 18 May 2022 563rd m-tkach 🇺🇦 817 101 29ms 18 Jan 2024 564th MeWhenI 🇻🇦 816 29 52ms 25 Aug 2022 565th ovs-code 🇩🇪 816 52 145ms 4 Aug 2024 566th GrayJoKing 🇦🇺 816 84 466ms 28 Feb 2022 567th MeWhenI 🇻🇦 815 27 33ms 16 Mar 2022 568th Yewzir 🇧🇪 815 61 111ms 16 Nov 2023 569th ovs-code 🇩🇪 815 66 2ms 10 Oct 2023 569th inventshah 815 66 2ms 22 Oct 2023 571st BREMAUCY 🇫🇷 814 59 396ms 20 Feb 2024 572nd duckyluuk 🇳🇱 814 70 2,332ms 28 Oct 2024 572nd jkelly467 814 70 2,249ms 22 Dec 2025 574th janlelis 811 52 40ms 18 Jan 2021 574th hiddicop 🇸🇪 811 52 40ms 29 Jan 2021 574th prplz 🇦🇺 811 52 39ms 22 Apr 2021 574th anter69 🇭🇺 811 52 40ms 14 Jan 2022 574th OhmNomNom 811 52 79ms 12 Oct 2022 574th DialFrost 🇸🇬 811 52 39ms 2 Feb 2023 574th olleicua 🇺🇸 811 52 38ms 25 Feb 2024 574th emgordon154 811 52 38ms 26 Nov 2024 582nd Steffan153 🇫🇮 810 79 1,432ms 23 Mar 2023 582nd Yewzir 🇧🇪 810 79 37ms 16 Nov 2023 584th FortuiteMan 🇫🇷 809 82 12ms 16 Jan 2026 585th petroselo 808 61 10ms 16 Nov 2021 585th cubed-guy 808 61 11ms 12 Feb 2022 585th CedricGebistorf 808 61 11ms 18 Feb 2022 585th jascotm 808 61 11ms 17 May 2022 585th Eilonlif 🇮🇱 808 61 31ms 9 Sep 2022 585th vishwathg 808 61 20ms 18 Sep 2022 585th jtaxen 808 61 11ms 26 Mar 2024 585th ahmetdemirag 🇨🇾 808 61 19ms 5 Nov 2024 585th Pyroan 808 61 12ms 16 Mar 2025 594th GolfingSuccess 🇬🇷 808 81 9ms 9 Sep 2022 595th Yewzir 🇧🇪 808 88 59ms 14 Oct 2023 595th KasperKivimaeki 🇫🇮 808 88 56ms 27 Nov 2025 595th emgordon154 808 88 54ms 27 days ago 598th m-tkach 🇺🇦 808 106 25ms 25 Apr 2022 599th primo-ppcg 🇹🇭 805 66 2ms 18 Jan 2021 599th jared-hughes 805 66 2ms 31 Jul 2022 601st ArmaanAS 804 58 11ms 4 Apr 2021 601st itsh01 804 58 9ms 18 Nov 2021 603rd Dazza314 🇬🇧 803 23 3ms 16 Apr 2021 604th Steffan153 🇫🇮 803 60 2ms 6 May 2023 605th DaDerpDuck 803 76 1ms 20 Jan 2021 606th stefangimmillaro 803 80 111ms 23 Sep 2023 607th emgordon154 803 85 8ms 3 Jan 2025 608th Shanethegamer 🇺🇸 803 94 120ms 25 Jan 2021 609th prplz 🇦🇺 802 83 126ms 10 Jul 2024 610th MeWhenI 🇻🇦 801 57 1,030ms 15 Sep 2025 611th MeWhenI 🇻🇦 800 50 3ms 11 Nov 2022 612th GolfingSuccess 🇬🇷 800 69 8ms 24 Dec 2024 613th m-tkach 🇺🇦 799 89 56ms 25 Apr 2022 613th MeWhenI 🇻🇦 799 89 56ms 8 May 2022 615th SirBogman 🇺🇸 796 53 37ms 10 Jun 2024 616th tobeannouncd 796 82 124ms 8 Jan 2024 617th cooljoseph1 795 62 23ms 6 May 2022 617th nkoppel 795 62 11ms 19 Oct 2022 617th AodhanDalton 795 62 11ms 4 Nov 2022 617th nstearns96 🇬🇧 795 62 17ms 28 Nov 2022 617th adamnielson42 🇺🇸 795 62 11ms 10 Jan 2024 617th jbjd 795 62 11ms 2 Mar 2024 617th HumanoidCPU 795 62 11ms 3 Jun 2024 617th jacekwladzinski 795 62 13ms 4 Oct 2025 617th Mabeloid 🇳🇴 795 62 11ms 26 Oct 2025 626th primo-ppcg 🇹🇭 795 78 71ms 13 Oct 2023 627th Shanethegamer 🇺🇸 795 84 468ms 25 Sep 2025 628th TrueBoxGuy 795 95 133ms 24 Sep 2025 629th Shanethegamer 🇺🇸 795 108 262ms 26 Sep 2021 630th GrayJoKing 🇦🇺 794 86 10ms 15 Aug 2023 630th Shanethegamer 🇺🇸 794 86 11ms 11 Jan 2024 632nd emgordon154 793 67 2ms 22 Apr 2025 633rd MichalMarsalek 🇨🇿 793 84 117ms 6 Jan 2023 634th Salutations45 790 59 13ms 9 Jan 2025 635th clockworknazo 790 83 17ms 26 Sep 2022 636th ashtraypettingzoo 🇺🇸 789 19 2ms 3 Apr 2023 636th AlephSquirrel 789 19 2ms 8 Nov 2025 638th MeWhenI 🇻🇦 789 63 114ms 16 Nov 2022 639th MeWhenI 🇻🇦 789 83 3ms 10 Sep 2022 640th kkoenig 788 109 311ms 5 Jan 2024 First Prev 561–640 of 1,908 Next Last