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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 Gray Code Decoder Gray Code Encoder 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 Dragon Curve Ellipse Perimeters Flags Floyd-Steinberg Dithering Hexagonal Spiral Highly Composite Numbers Huffman Encoder NFA Simulator Nim 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 ArkScript 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 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 ArkScript 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 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 Gray Code Decoder Gray Code Encoder 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 Dragon Curve Ellipse Perimeters Flags Floyd-Steinberg Dithering Hexagonal Spiral Highly Composite Numbers Huffman Encoder NFA Simulator Nim 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 601st FortuiteMan 🇫🇷 812 82 13ms 16 Jan 2026 602nd m-tkach 🇺🇦 812 106 25ms 25 Apr 2022 603rd Yewzir 🇧🇪 810 79 37ms 16 Nov 2023 604th Yewzir 🇧🇪 809 88 55ms 14 Oct 2023 604th KasperKivimaeki 🇫🇮 809 88 61ms 27 Nov 2025 604th emgordon154 809 88 61ms 8 Feb 2026 607th petroselo 808 61 10ms 16 Nov 2021 607th cubed-guy 808 61 12ms 12 Feb 2022 607th CedricGebistorf 808 61 12ms 18 Feb 2022 607th jascotm 808 61 11ms 17 May 2022 607th Eilonlif 🇮🇱 808 61 39ms 9 Sep 2022 607th vishwathg 808 61 21ms 18 Sep 2022 607th jtaxen 808 61 10ms 26 Mar 2024 607th ahmetdemirag 🇨🇾 808 61 18ms 5 Nov 2024 607th Pyroan 808 61 13ms 16 Mar 2025 607th zgialor-lab 808 61 10ms 18 days ago 617th primo-ppcg 🇹🇭 806 66 2ms 18 Jan 2021 617th jared-hughes 806 66 2ms 31 Jul 2022 619th Shanethegamer 🇺🇸 806 94 122ms 25 Jan 2021 620th GolfingSuccess 🇬🇷 805 69 8ms 24 Dec 2024 621st stefangimmillaro 805 80 105ms 23 Sep 2023 622nd prplz 🇦🇺 805 83 129ms 10 Jul 2024 623rd emgordon154 805 85 8ms 3 Jan 2025 624th ArmaanAS 804 58 9ms 4 Apr 2021 624th itsh01 804 58 9ms 18 Nov 2021 626th Steffan153 🇫🇮 804 60 2ms 6 May 2023 627th DaDerpDuck 804 76 1ms 20 Jan 2021 628th Dazza314 🇬🇧 803 23 3ms 16 Apr 2021 629th MeWhenI 🇻🇦 803 57 769ms 15 Sep 2025 630th MeWhenI 🇻🇦 801 50 3ms 11 Nov 2022 631st Steffan153 🇫🇮 800 80 1,720ms 13 days ago 632nd m-tkach 🇺🇦 800 89 57ms 25 Apr 2022 632nd MeWhenI 🇻🇦 800 89 60ms 8 May 2022 634th TrueBoxGuy 798 95 129ms 24 Sep 2025 635th SirBogman 🇺🇸 797 53 41ms 10 Jun 2024 636th primo-ppcg 🇹🇭 797 78 69ms 13 Oct 2023 637th tobeannouncd 797 82 124ms 8 Jan 2024 638th MichalMarsalek 🇨🇿 796 84 132ms 6 Jan 2023 638th Shanethegamer 🇺🇸 796 84 452ms 25 Sep 2025 640th GrayJoKing 🇦🇺 796 86 10ms 15 Aug 2023 640th Shanethegamer 🇺🇸 796 86 11ms 11 Jan 2024 642nd Shanethegamer 🇺🇸 796 108 326ms 26 Sep 2021 643rd cooljoseph1 795 62 24ms 6 May 2022 643rd nkoppel 795 62 16ms 19 Oct 2022 643rd AodhanDalton 795 62 13ms 4 Nov 2022 643rd nstearns96 🇬🇧 795 62 19ms 28 Nov 2022 643rd adamnielson42 🇺🇸 795 62 12ms 10 Jan 2024 643rd jbjd 795 62 11ms 2 Mar 2024 643rd HumanoidCPU 795 62 12ms 3 Jun 2024 643rd jacekwladzinski 795 62 13ms 4 Oct 2025 643rd Mabeloid 🇳🇴 795 62 12ms 26 Oct 2025 652nd emgordon154 794 67 2ms 22 Apr 2025 653rd clockworknazo 793 83 17ms 26 Sep 2022 654th MeWhenI 🇻🇦 792 83 3ms 10 Sep 2022 655th Salutations45 790 59 17ms 9 Jan 2025 656th MeWhenI 🇻🇦 790 63 154ms 16 Nov 2022 657th ashtraypettingzoo 🇺🇸 789 19 2ms 3 Apr 2023 657th AlephSquirrel 789 19 2ms 8 Nov 2025 659th emgordon154 789 105 110ms 4 Dec 2025 660th SirBogman 🇺🇸 788 91 38ms 3 Jun 2025 661st kkoenig 788 109 342ms 5 Jan 2024 662nd prplz 🇦🇺 787 46 297ms 24 Jan 2021 662nd TimCurwick 🇺🇸 787 46 258ms 26 Jan 2021 662nd SirBogman 🇺🇸 787 46 284ms 2 Feb 2024 665th Shanethegamer 🇺🇸 785 76 393ms 13 Dec 2021 665th Yax42 🇫🇷 785 76 413ms 5 May 2025 667th Yewzir 🇧🇪 785 82 101ms 28 Mar 2024 668th nwellnhof 🇩🇪 783 38 162ms 21 Oct 2021 669th apourchot 783 63 21ms 13 Feb 2021 669th neihousaigaai 783 63 11ms 10 Apr 2021 669th lechevalier 783 63 12ms 9 Aug 2021 669th commandz0 🇺🇸 783 63 14ms 19 Sep 2022 669th fourth-bit 783 63 12ms 21 Nov 2022 669th FortuiteMan 🇫🇷 783 63 27ms 8 Sep 2023 669th ssbhatt4321 783 63 27ms 14 Oct 2023 669th dokutan 783 63 19ms 1 Apr 2025 677th Waffle3z 782 54 39ms 19 Jan 2021 677th olivermrose 🇺🇸 782 54 40ms 28 Sep 2021 677th KatieLG 🇬🇧 782 54 39ms 9 Jan 2023 677th Andriamanitra 🇫🇮 782 54 40ms 20 Jul 2023 681st GrayJoKing 🇦🇺 782 68 2ms 21 Jan 2021 681st m-tkach 🇺🇦 782 68 2ms 25 Apr 2022 681st MeWhenI 🇻🇦 782 68 2ms 11 Nov 2022 684th janbehrens 🇩🇪 782 91 62ms 20 Nov 2022 684th snyderek 🇺🇸 782 91 54ms 21 Nov 2024 684th dokutan 782 91 63ms 18 Jul 2025 687th MeWhenI 🇻🇦 781 88 457ms 28 Feb 2022 688th Shanethegamer 🇺🇸 780 106 33ms 20 Jan 2025 689th anter69 🇭🇺 777 59 1,341ms 24 Feb 2023 689th SirBogman 🇺🇸 777 59 1,295ms 10 Jun 2024 691st rak1507 🇬🇧 777 60 10ms 20 Jan 2021 691st Shanethegamer 🇺🇸 777 60 11ms 26 Sep 2021 691st duckyluuk 🇳🇱 777 60 13ms 4 Oct 2024 694th ovs-code 🇩🇪 776 142 11ms 31 Mar 2023 695th commandz0 🇺🇸 775 62 523ms 15 Jan 2024 695th HumanoidCPU 775 62 434ms 3 Jun 2024 695th dokutan 775 62 498ms 14 Feb 2026 698th scpchicken 🇵🇼 774 48 3ms 15 Dec 2022 699th GrayJoKing 🇦🇺 773 55 136ms 6 Aug 2024 700th mousetail 🇳🇱 773 98 122ms 3 Oct 2024 First Prev 601–700 of 2,009 Next Last