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 561st GrayJoKing 🇦🇺 816 84 466ms 28 Feb 2022 562nd MeWhenI 🇻🇦 815 27 33ms 16 Mar 2022 563rd Yewzir 🇧🇪 815 61 111ms 16 Nov 2023 564th ovs-code 🇩🇪 815 66 2ms 10 Oct 2023 564th inventshah 815 66 2ms 22 Oct 2023 566th BREMAUCY 🇫🇷 814 59 396ms 20 Feb 2024 567th duckyluuk 🇳🇱 814 70 2,332ms 28 Oct 2024 567th jkelly467 814 70 2,249ms 22 Dec 2025 569th janlelis 811 52 43ms 18 Jan 2021 569th hiddicop 🇸🇪 811 52 41ms 29 Jan 2021 569th prplz 🇦🇺 811 52 41ms 22 Apr 2021 569th anter69 🇭🇺 811 52 40ms 14 Jan 2022 569th OhmNomNom 811 52 81ms 12 Oct 2022 569th DialFrost 🇸🇬 811 52 44ms 2 Feb 2023 569th olleicua 🇺🇸 811 52 38ms 25 Feb 2024 569th emgordon154 811 52 38ms 26 Nov 2024 577th Steffan153 🇫🇮 810 79 1,437ms 23 Mar 2023 577th Yewzir 🇧🇪 810 79 38ms 16 Nov 2023 579th FortuiteMan 🇫🇷 809 82 12ms 16 Jan 2026 580th petroselo 808 61 10ms 16 Nov 2021 580th cubed-guy 808 61 11ms 12 Feb 2022 580th CedricGebistorf 808 61 12ms 18 Feb 2022 580th jascotm 808 61 11ms 17 May 2022 580th Eilonlif 🇮🇱 808 61 31ms 9 Sep 2022 580th vishwathg 808 61 22ms 18 Sep 2022 580th jtaxen 808 61 12ms 26 Mar 2024 580th ahmetdemirag 🇨🇾 808 61 19ms 5 Nov 2024 580th Pyroan 808 61 12ms 16 Mar 2025 589th GolfingSuccess 🇬🇷 808 81 9ms 9 Sep 2022 590th Yewzir 🇧🇪 808 88 56ms 14 Oct 2023 590th KasperKivimaeki 🇫🇮 808 88 54ms 27 Nov 2025 590th emgordon154 808 88 57ms 6 days ago 593rd m-tkach 🇺🇦 808 106 25ms 25 Apr 2022 594th primo-ppcg 🇹🇭 805 66 2ms 18 Jan 2021 594th jared-hughes 805 66 2ms 31 Jul 2022 596th ArmaanAS 804 58 9ms 4 Apr 2021 596th itsh01 804 58 9ms 18 Nov 2021 598th Dazza314 🇬🇧 803 23 3ms 16 Apr 2021 599th Steffan153 🇫🇮 803 60 2ms 6 May 2023 600th DaDerpDuck 803 76 1ms 20 Jan 2021 601st stefangimmillaro 803 80 111ms 23 Sep 2023 602nd emgordon154 803 85 7ms 3 Jan 2025 603rd Shanethegamer 🇺🇸 803 94 120ms 25 Jan 2021 604th prplz 🇦🇺 802 83 125ms 10 Jul 2024 605th MeWhenI 🇻🇦 801 57 1,030ms 15 Sep 2025 606th MeWhenI 🇻🇦 800 50 3ms 11 Nov 2022 607th GolfingSuccess 🇬🇷 800 69 8ms 24 Dec 2024 608th m-tkach 🇺🇦 799 89 57ms 25 Apr 2022 608th MeWhenI 🇻🇦 799 89 54ms 8 May 2022 610th SirBogman 🇺🇸 796 53 39ms 10 Jun 2024 611th tobeannouncd 796 82 124ms 8 Jan 2024 612th cooljoseph1 795 62 23ms 6 May 2022 612th nkoppel 795 62 11ms 19 Oct 2022 612th AodhanDalton 795 62 12ms 4 Nov 2022 612th nstearns96 🇬🇧 795 62 18ms 28 Nov 2022 612th adamnielson42 🇺🇸 795 62 11ms 10 Jan 2024 612th jbjd 795 62 11ms 2 Mar 2024 612th HumanoidCPU 795 62 11ms 3 Jun 2024 612th jacekwladzinski 795 62 13ms 4 Oct 2025 612th Mabeloid 🇳🇴 795 62 11ms 26 Oct 2025 621st primo-ppcg 🇹🇭 795 78 71ms 13 Oct 2023 622nd Shanethegamer 🇺🇸 795 84 468ms 25 Sep 2025 623rd TrueBoxGuy 795 95 121ms 24 Sep 2025 624th Shanethegamer 🇺🇸 795 108 292ms 26 Sep 2021 625th GrayJoKing 🇦🇺 794 86 9ms 15 Aug 2023 625th Shanethegamer 🇺🇸 794 86 10ms 11 Jan 2024 627th emgordon154 793 67 2ms 22 Apr 2025 628th MichalMarsalek 🇨🇿 793 84 127ms 6 Jan 2023 629th Salutations45 790 59 10ms 9 Jan 2025 630th clockworknazo 790 83 17ms 26 Sep 2022 631st ashtraypettingzoo 🇺🇸 789 19 2ms 3 Apr 2023 631st AlephSquirrel 789 19 2ms 8 Nov 2025 633rd MeWhenI 🇻🇦 789 63 114ms 16 Nov 2022 634th MeWhenI 🇻🇦 789 83 3ms 10 Sep 2022 635th kkoenig 788 109 290ms 5 Jan 2024 636th prplz 🇦🇺 786 46 248ms 24 Jan 2021 636th TimCurwick 🇺🇸 786 46 238ms 26 Jan 2021 636th SirBogman 🇺🇸 786 46 254ms 2 Feb 2024 639th SirBogman 🇺🇸 786 91 38ms 3 Jun 2025 640th Shanethegamer 🇺🇸 784 76 417ms 13 Dec 2021 First Prev 561–640 of 1,900 Next Last