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 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 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 Calendar 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 Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Tower of Hanoi Turtle Tutorial All Languages ><> Assembly AWK Bash BASIC Berry brainfuck C C# C++ Civet Clojure COBOL Coconut Common Lisp Crystal D Dart Elixir 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 Arturo Befunge BQN CJam CoffeeScript Egel Erlang 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 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 Arturo Befunge BQN CJam CoffeeScript Egel Erlang 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 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 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 Calendar 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 Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Tower of Hanoi Turtle Tutorial # Golfer Points Chars Time Submitted 826th JGDoerrer 690 103 372ms 5 Jan 2022 826th tailorspy 690 103 57ms 29 Oct 2023 828th msbranicky 689 95 7ms 11 Aug 2023 829th Shanethegamer 🇺🇸 689 106 19ms 4 Oct 2024 830th NewDefectus 🇮🇱 688 32 38ms 20 Dec 2021 831st GolfingSuccess 🇬🇷 688 69 35ms 17 Aug 2024 832nd Andriamanitra 🇫🇮 687 95 186ms 20 Jul 2023 833rd KasperKivimaeki 🇫🇮 687 125 258ms 3 Oct 2025 834th LeeCamp 684 72 10ms 16 Feb 2022 834th LukasFolwarczny 🇨🇿 684 72 11ms 16 Sep 2022 834th CutSandstone 684 72 36ms 8 Jul 2024 837th msbranicky 684 89 2ms 26 Sep 2023 838th Shanethegamer 🇺🇸 678 126 27ms 8 Jul 2021 839th dokutan 677 59 3ms 18 Jul 2025 840th jared-hughes 676 35 54ms 31 Jul 2022 840th Natanaelel 🇸🇪 676 35 48ms 18 Aug 2022 842nd SirBogman 🇺🇸 676 44 226ms 22 Oct 2021 843rd Yewzir 🇧🇪 676 88 325ms 14 Oct 2023 844th richard-oelze 🇩🇪 675 73 31ms 4 Apr 2021 844th mauro-1 🇮🇹 675 73 9ms 18 Aug 2021 844th gchenfc 675 73 9ms 24 Jan 2022 844th hiichbindermax 675 73 10ms 26 Feb 2022 844th Omega65536 🇩🇪 675 73 11ms 24 Nov 2022 844th sandorstormen 675 73 11ms 18 Feb 2023 844th Mr-McChicken 675 73 11ms 15 Oct 2023 844th Masttest 675 73 10ms 21 Feb 2024 852nd dokutan 675 99 344ms 24 Sep 2025 853rd janbehrens 🇩🇪 673 68 1,067ms 9 Apr 2021 854th madex 🇩🇪 672 79 2ms 11 Jul 2024 855th msbranicky 672 80 4ms 11 Oct 2023 856th rboath 671 58 78ms 8 Jan 2025 857th 5quiwyrm 670 54 234ms 5 Dec 2024 858th I-Love-47 🇺🇦 670 106 53ms 10 Feb 2022 859th CaedenHarper 🇨🇦 666 70 10ms 31 Jan 2025 860th jameslindesay 666 74 11ms 24 Feb 2021 860th PkmnQ 666 74 37ms 5 May 2024 860th RedzGoose 🇦🇺 666 74 10ms 14 Oct 2024 860th yokasuretsu 666 74 11ms 13 Jan 2025 864th snoozingnewt 🇺🇸 666 98 112ms 26 days ago 865th Natanaelel 🇸🇪 663 56 4ms 20 Jan 2024 866th MeWhenI 🇻🇦 663 69 340ms 15 Feb 2023 866th MarcMush 🇫🇷 663 69 307ms 12 Feb 2024 866th Yewzir 🇧🇪 663 69 350ms 5 Apr 2024 869th DialFrost 🇸🇬 663 75 112ms 3 Jun 2025 870th 77Tigers 662 114 142ms 9 Apr 2024 871st dokutan 658 69 717ms 30 Aug 2025 872nd SirBogman 🇺🇸 658 108 51ms 3 Jan 2022 873rd Trunksistor 🇫🇷 657 75 11ms 25 May 2022 873rd celiendonze 🇨🇭 657 75 11ms 16 Jun 2023 873rd qwjhvbxi 657 75 11ms 9 Feb 2024 873rd wenbang24 657 75 13ms 6 Apr 2024 877th uttumuttu 🇫🇮 656 71 8ms 8 Jan 2022 877th olleicua 🇺🇸 656 71 9ms 20 Feb 2024 879th annaproxy 656 91 99ms 13 Jan 2023 880th AdrienHache 🇫🇷 654 91 512ms 31 Dec 2023 881st emgordon154 653 65 137ms 6 Sep 2024 882nd olivermrose 🇺🇸 652 57 4ms 24 Aug 2021 883rd boxjelly 648 65 37ms 11 Feb 2021 883rd msbranicky 648 65 43ms 12 Sep 2023 885th Waffle3z 648 76 12ms 20 Jan 2021 885th hellwue 648 76 11ms 16 Nov 2023 885th yuchuehw 648 76 18ms 18 Jan 2024 888th Bubbler-4 648 97 77ms 13 Sep 2023 888th Shanethegamer 🇺🇸 648 97 13ms 22 Dec 2023 890th jwhear 🇺🇸 647 171 1,651ms 1 Oct 2024 891st johnnythedoggie 644 106 105ms 3 Mar 2021 891st snoozingnewt 🇺🇸 644 106 97ms 4 days ago 893rd NickTheEASDude 🇺🇸 641 95 2ms 1 Jul 2024 894th emgordon154 641 98 11ms 10 Dec 2024 895th msbranicky 641 134 261ms 3 Oct 2023 896th nephila-nacrea 🇬🇧 640 58 4ms 3 Feb 2021 897th f-tucker 640 77 10ms 2 Feb 2024 897th undefinedRyan 640 77 11ms 19 Apr 2025 897th Emutis 🇱🇹 640 77 11ms 12 Sep 2025 900th alomiF 640 102 139ms 4 Nov 2024 First Prev 826–900 of 1,854 Next Last