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 Taxicab 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 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 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 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 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 Taxicab Numbers Tower of Hanoi Turtle Tutorial # Golfer Points Chars Time Submitted 825th DaCuteRaccoon 691 61 52ms 9 Dec 2022 827th edsrzf 🇳🇿 691 91 21ms 21 Dec 2024 828th JGDoerrer 691 103 365ms 5 Jan 2022 828th tailorspy 691 103 54ms 29 Oct 2023 830th msbranicky 689 95 7ms 11 Aug 2023 831st Shanethegamer 🇺🇸 689 106 19ms 4 Oct 2024 832nd NewDefectus 🇮🇱 688 32 38ms 20 Dec 2021 833rd GolfingSuccess 🇬🇷 688 69 35ms 17 Aug 2024 834th Andriamanitra 🇫🇮 687 95 186ms 20 Jul 2023 835th KasperKivimaeki 🇫🇮 687 125 258ms 3 Oct 2025 836th LeeCamp 684 72 10ms 16 Feb 2022 836th LukasFolwarczny 🇨🇿 684 72 11ms 16 Sep 2022 836th CutSandstone 684 72 36ms 8 Jul 2024 839th msbranicky 684 89 2ms 26 Sep 2023 840th Shanethegamer 🇺🇸 678 126 27ms 8 Jul 2021 841st dokutan 677 59 3ms 18 Jul 2025 842nd jared-hughes 676 35 54ms 31 Jul 2022 842nd Natanaelel 🇸🇪 676 35 48ms 18 Aug 2022 844th SirBogman 🇺🇸 676 44 226ms 22 Oct 2021 845th Yewzir 🇧🇪 676 88 325ms 14 Oct 2023 846th richard-oelze 🇩🇪 675 73 31ms 4 Apr 2021 846th mauro-1 🇮🇹 675 73 9ms 18 Aug 2021 846th gchenfc 675 73 9ms 24 Jan 2022 846th hiichbindermax 675 73 10ms 26 Feb 2022 846th Omega65536 🇩🇪 675 73 11ms 24 Nov 2022 846th sandorstormen 675 73 11ms 18 Feb 2023 846th Mr-McChicken 675 73 11ms 15 Oct 2023 846th Masttest 675 73 10ms 21 Feb 2024 854th dokutan 675 99 344ms 24 Sep 2025 855th janbehrens 🇩🇪 673 68 1,067ms 9 Apr 2021 856th madex 🇩🇪 672 79 2ms 11 Jul 2024 857th msbranicky 672 80 4ms 11 Oct 2023 858th rboath 671 58 78ms 8 Jan 2025 859th I-Love-47 🇺🇦 671 106 53ms 10 Feb 2022 860th 5quiwyrm 670 54 234ms 5 Dec 2024 861st CaedenHarper 🇨🇦 666 70 9ms 31 Jan 2025 862nd jameslindesay 666 74 11ms 24 Feb 2021 862nd PkmnQ 666 74 37ms 5 May 2024 862nd RedzGoose 🇦🇺 666 74 10ms 14 Oct 2024 862nd yokasuretsu 666 74 11ms 13 Jan 2025 866th snoozingnewt 🇺🇸 666 98 112ms 30 Oct 2025 867th Natanaelel 🇸🇪 663 56 4ms 20 Jan 2024 868th MeWhenI 🇻🇦 663 69 340ms 15 Feb 2023 868th MarcMush 🇫🇷 663 69 287ms 12 Feb 2024 868th Yewzir 🇧🇪 663 69 342ms 5 Apr 2024 871st DialFrost 🇸🇬 663 75 112ms 3 Jun 2025 872nd 77Tigers 662 114 142ms 9 Apr 2024 873rd SirBogman 🇺🇸 659 108 51ms 3 Jan 2022 874th dokutan 658 69 717ms 30 Aug 2025 875th Trunksistor 🇫🇷 657 75 11ms 25 May 2022 875th celiendonze 🇨🇭 657 75 11ms 16 Jun 2023 875th qwjhvbxi 657 75 11ms 9 Feb 2024 875th wenbang24 657 75 13ms 6 Apr 2024 879th uttumuttu 🇫🇮 656 71 8ms 8 Jan 2022 879th olleicua 🇺🇸 656 71 9ms 20 Feb 2024 881st annaproxy 656 91 99ms 13 Jan 2023 882nd AdrienHache 🇫🇷 654 91 402ms 31 Dec 2023 883rd emgordon154 653 65 137ms 6 Sep 2024 884th olivermrose 🇺🇸 652 57 4ms 24 Aug 2021 885th boxjelly 648 65 37ms 11 Feb 2021 885th msbranicky 648 65 43ms 12 Sep 2023 887th Waffle3z 648 76 12ms 20 Jan 2021 887th hellwue 648 76 11ms 16 Nov 2023 887th yuchuehw 648 76 18ms 18 Jan 2024 890th Bubbler-4 648 97 77ms 13 Sep 2023 890th Shanethegamer 🇺🇸 648 97 8ms 22 Dec 2023 892nd jwhear 🇺🇸 647 171 1,651ms 1 Oct 2024 893rd johnnythedoggie 644 106 105ms 3 Mar 2021 893rd snoozingnewt 🇺🇸 644 106 97ms 6 days ago 895th NickTheEASDude 🇺🇸 641 95 2ms 1 Jul 2024 896th emgordon154 641 98 9ms 10 Dec 2024 897th msbranicky 641 134 261ms 3 Oct 2023 898th nephila-nacrea 🇬🇧 640 58 4ms 3 Feb 2021 899th f-tucker 640 77 10ms 2 Feb 2024 899th undefinedRyan 640 77 11ms 19 Apr 2025 First Prev 826–900 of 1,855 Next Last