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 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 Multitap Input 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 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 Multitap Input 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 BREMAUCY 🇫🇷 814 59 433ms 20 Feb 2024 562nd duckyluuk 🇳🇱 814 70 2,253ms 28 Oct 2024 562nd jkelly467 814 70 2,455ms 26 days ago 564th janlelis 811 52 43ms 18 Jan 2021 564th hiddicop 🇸🇪 811 52 41ms 29 Jan 2021 564th prplz 🇦🇺 811 52 41ms 22 Apr 2021 564th anter69 🇭🇺 811 52 40ms 14 Jan 2022 564th OhmNomNom 811 52 81ms 12 Oct 2022 564th DialFrost 🇸🇬 811 52 44ms 2 Feb 2023 564th olleicua 🇺🇸 811 52 38ms 25 Feb 2024 564th emgordon154 811 52 38ms 26 Nov 2024 572nd Steffan153 🇫🇮 810 79 1,437ms 23 Mar 2023 572nd Yewzir 🇧🇪 810 79 38ms 16 Nov 2023 574th petroselo 808 61 11ms 16 Nov 2021 574th cubed-guy 808 61 10ms 12 Feb 2022 574th CedricGebistorf 808 61 10ms 18 Feb 2022 574th jascotm 808 61 10ms 17 May 2022 574th Eilonlif 🇮🇱 808 61 29ms 9 Sep 2022 574th vishwathg 808 61 20ms 18 Sep 2022 574th jtaxen 808 61 10ms 26 Mar 2024 574th ahmetdemirag 🇨🇾 808 61 19ms 5 Nov 2024 574th Pyroan 808 61 14ms 16 Mar 2025 583rd GolfingSuccess 🇬🇷 808 81 9ms 9 Sep 2022 584th Yewzir 🇧🇪 808 88 56ms 14 Oct 2023 584th KasperKivimaeki 🇫🇮 808 88 54ms 27 Nov 2025 586th m-tkach 🇺🇦 806 106 25ms 25 Apr 2022 587th primo-ppcg 🇹🇭 805 66 2ms 18 Jan 2021 587th jared-hughes 805 66 2ms 31 Jul 2022 589th ArmaanAS 804 58 11ms 4 Apr 2021 589th itsh01 804 58 9ms 18 Nov 2021 591st Dazza314 🇬🇧 803 23 3ms 16 Apr 2021 592nd Steffan153 🇫🇮 803 60 2ms 6 May 2023 593rd stefangimmillaro 803 80 119ms 23 Sep 2023 594th emgordon154 803 85 7ms 3 Jan 2025 595th Shanethegamer 🇺🇸 803 94 117ms 25 Jan 2021 596th DaDerpDuck 802 76 1ms 20 Jan 2021 597th prplz 🇦🇺 802 83 125ms 10 Jul 2024 598th m-ender 🇩🇪 802 89 153ms 23 Apr 2021 599th MeWhenI 🇻🇦 800 50 3ms 11 Nov 2022 600th GolfingSuccess 🇬🇷 800 69 8ms 24 Dec 2024 601st MeWhenI 🇻🇦 799 57 701ms 15 Sep 2025 602nd m-tkach 🇺🇦 798 89 57ms 25 Apr 2022 602nd MeWhenI 🇻🇦 798 89 54ms 8 May 2022 604th SirBogman 🇺🇸 796 53 39ms 10 Jun 2024 605th tobeannouncd 796 82 124ms 8 Jan 2024 606th cooljoseph1 795 62 20ms 6 May 2022 606th nkoppel 795 62 13ms 19 Oct 2022 606th AodhanDalton 795 62 10ms 4 Nov 2022 606th nstearns96 🇬🇧 795 62 17ms 28 Nov 2022 606th adamnielson42 🇺🇸 795 62 11ms 10 Jan 2024 606th jbjd 795 62 11ms 2 Mar 2024 606th HumanoidCPU 795 62 11ms 3 Jun 2024 606th jacekwladzinski 795 62 12ms 4 Oct 2025 606th Mabeloid 🇳🇴 795 62 13ms 26 Oct 2025 615th primo-ppcg 🇹🇭 795 78 71ms 13 Oct 2023 616th Shanethegamer 🇺🇸 795 84 435ms 25 Sep 2025 617th TrueBoxGuy 795 95 115ms 24 Sep 2025 618th Shanethegamer 🇺🇸 795 108 246ms 26 Sep 2021 619th GrayJoKing 🇦🇺 794 86 9ms 15 Aug 2023 619th Shanethegamer 🇺🇸 794 86 10ms 11 Jan 2024 621st emgordon154 793 67 2ms 22 Apr 2025 622nd MichalMarsalek 🇨🇿 793 84 127ms 6 Jan 2023 623rd Salutations45 790 59 10ms 9 Jan 2025 624th clockworknazo 790 83 17ms 26 Sep 2022 625th ashtraypettingzoo 🇺🇸 789 19 2ms 3 Apr 2023 625th AlephSquirrel 789 19 2ms 8 Nov 2025 627th MeWhenI 🇻🇦 789 63 114ms 16 Nov 2022 628th MeWhenI 🇻🇦 789 83 3ms 10 Sep 2022 629th kkoenig 788 109 250ms 5 Jan 2024 630th prplz 🇦🇺 786 46 248ms 24 Jan 2021 630th TimCurwick 🇺🇸 786 46 238ms 26 Jan 2021 630th SirBogman 🇺🇸 786 46 254ms 2 Feb 2024 633rd SirBogman 🇺🇸 786 91 38ms 3 Jun 2025 634th Yewzir 🇧🇪 784 82 105ms 28 Mar 2024 635th Shanethegamer 🇺🇸 783 76 417ms 13 Dec 2021 635th Yax42 🇫🇷 783 76 409ms 5 May 2025 637th nwellnhof 🇩🇪 782 38 145ms 21 Oct 2021 638th apourchot 782 63 18ms 13 Feb 2021 638th neihousaigaai 782 63 12ms 10 Apr 2021 638th lechevalier 782 63 10ms 9 Aug 2021 First Prev 561–640 of 1,884 Next Last