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 Rectangle Fill 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 Rectangle Fill Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Taxicab Numbers Turtle Tutorial # Golfer Points Chars Time Submitted 561st emgordon154 821 105 110ms 4 Dec 2025 562nd NewDefectus 🇮🇱 818 57 9ms 1 Nov 2021 563rd prplz 🇦🇺 818 65 2ms 24 Jan 2021 563rd sisyphus-ppcg 🇦🇺 818 65 2ms 25 Jan 2021 563rd 09cf 818 65 2ms 24 Sep 2023 566th MeWhenI 🇻🇦 817 29 54ms 25 Aug 2022 567th inventshah 817 59 2ms 18 May 2022 567th MeWhenI 🇻🇦 817 59 2ms 18 May 2022 569th m-tkach 🇺🇦 817 101 29ms 18 Jan 2024 570th ovs-code 🇩🇪 816 52 151ms 4 Aug 2024 571st GrayJoKing 🇦🇺 816 84 466ms 28 Feb 2022 572nd MeWhenI 🇻🇦 815 27 33ms 16 Mar 2022 573rd Yewzir 🇧🇪 815 61 148ms 16 Nov 2023 574th ovs-code 🇩🇪 815 66 2ms 10 Oct 2023 574th inventshah 815 66 2ms 22 Oct 2023 576th BREMAUCY 🇫🇷 814 59 396ms 20 Feb 2024 577th duckyluuk 🇳🇱 814 70 3,850ms 28 Oct 2024 577th jkelly467 814 70 4,162ms 22 Dec 2025 579th janlelis 811 52 45ms 18 Jan 2021 579th hiddicop 🇸🇪 811 52 53ms 29 Jan 2021 579th prplz 🇦🇺 811 52 50ms 22 Apr 2021 579th anter69 🇭🇺 811 52 48ms 14 Jan 2022 579th OhmNomNom 811 52 105ms 12 Oct 2022 579th DialFrost 🇸🇬 811 52 52ms 2 Feb 2023 579th olleicua 🇺🇸 811 52 42ms 25 Feb 2024 579th emgordon154 811 52 49ms 26 Nov 2024 587th Steffan153 🇫🇮 810 79 1,407ms 23 Mar 2023 587th Yewzir 🇧🇪 810 79 37ms 16 Nov 2023 589th FortuiteMan 🇫🇷 809 82 13ms 16 Jan 2026 590th petroselo 808 61 10ms 16 Nov 2021 590th cubed-guy 808 61 11ms 12 Feb 2022 590th CedricGebistorf 808 61 11ms 18 Feb 2022 590th jascotm 808 61 11ms 17 May 2022 590th Eilonlif 🇮🇱 808 61 31ms 9 Sep 2022 590th vishwathg 808 61 20ms 18 Sep 2022 590th jtaxen 808 61 11ms 26 Mar 2024 590th ahmetdemirag 🇨🇾 808 61 19ms 5 Nov 2024 590th Pyroan 808 61 12ms 16 Mar 2025 599th GolfingSuccess 🇬🇷 808 81 9ms 9 Sep 2022 600th Yewzir 🇧🇪 808 88 56ms 14 Oct 2023 600th KasperKivimaeki 🇫🇮 808 88 65ms 27 Nov 2025 600th emgordon154 808 88 60ms 8 Feb 2026 603rd m-tkach 🇺🇦 808 106 25ms 25 Apr 2022 604th primo-ppcg 🇹🇭 805 66 2ms 18 Jan 2021 604th jared-hughes 805 66 2ms 31 Jul 2022 606th ArmaanAS 804 58 11ms 4 Apr 2021 606th itsh01 804 58 10ms 18 Nov 2021 608th Dazza314 🇬🇧 803 23 3ms 16 Apr 2021 609th Steffan153 🇫🇮 803 60 2ms 6 May 2023 610th DaDerpDuck 803 76 1ms 20 Jan 2021 611th stefangimmillaro 803 80 112ms 23 Sep 2023 612th emgordon154 803 85 8ms 3 Jan 2025 613th Shanethegamer 🇺🇸 803 94 120ms 25 Jan 2021 614th prplz 🇦🇺 802 83 126ms 10 Jul 2024 615th MeWhenI 🇻🇦 801 57 1,030ms 15 Sep 2025 616th MeWhenI 🇻🇦 800 50 3ms 11 Nov 2022 617th GolfingSuccess 🇬🇷 800 69 7ms 24 Dec 2024 618th m-tkach 🇺🇦 799 89 57ms 25 Apr 2022 618th MeWhenI 🇻🇦 799 89 56ms 8 May 2022 620th SirBogman 🇺🇸 796 53 57ms 10 Jun 2024 621st tobeannouncd 796 82 124ms 8 Jan 2024 622nd cooljoseph1 795 62 23ms 6 May 2022 622nd nkoppel 795 62 11ms 19 Oct 2022 622nd AodhanDalton 795 62 11ms 4 Nov 2022 622nd nstearns96 🇬🇧 795 62 17ms 28 Nov 2022 622nd adamnielson42 🇺🇸 795 62 11ms 10 Jan 2024 622nd jbjd 795 62 11ms 2 Mar 2024 622nd HumanoidCPU 795 62 11ms 3 Jun 2024 622nd jacekwladzinski 795 62 13ms 4 Oct 2025 622nd Mabeloid 🇳🇴 795 62 11ms 26 Oct 2025 631st primo-ppcg 🇹🇭 795 78 71ms 13 Oct 2023 632nd Shanethegamer 🇺🇸 795 84 468ms 25 Sep 2025 633rd TrueBoxGuy 795 95 121ms 24 Sep 2025 634th Shanethegamer 🇺🇸 795 108 262ms 26 Sep 2021 635th GrayJoKing 🇦🇺 794 86 10ms 15 Aug 2023 635th Shanethegamer 🇺🇸 794 86 11ms 11 Jan 2024 637th emgordon154 793 67 2ms 22 Apr 2025 638th MichalMarsalek 🇨🇿 793 84 117ms 6 Jan 2023 639th Salutations45 790 59 11ms 9 Jan 2025 640th clockworknazo 790 83 17ms 26 Sep 2022 First Prev 561–640 of 1,914 Next Last