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 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 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 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 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 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 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 799th coreynash 706 66 9ms 21 Oct 2023 799th two-bad 🇬🇧 706 66 10ms 24 Nov 2023 799th dylanarmstrong 706 66 9ms 15 Jan 2024 799th madeforlosers 706 66 10ms 5 Nov 2025 805th Stockoh 🇫🇷 706 68 449ms 24 Jun 2024 805th JunkIce 706 68 447ms 3 Dec 2024 807th typeswitch-dev 🇵🇹 705 74 8ms 7 Aug 2023 808th antimon2 🇯🇵 704 65 470ms 19 Jan 2021 808th msbranicky 704 65 1,289ms 12 Sep 2023 810th osmith93 704 70 25ms 14 Jun 2021 810th ridingqwerty 🇺🇸 704 70 12ms 23 Feb 2024 810th mbittner20 704 70 11ms 15 Jul 2024 810th RaBa21 🇭🇺 704 70 12ms 18 Jul 2025 814th Shanethegamer 🇺🇸 704 91 39ms 16 Jun 2022 815th Herbert00709 🇵🇱 704 101 60ms 19 Nov 2024 816th SnowballSH 703 60 38ms 12 Feb 2021 816th aksyristos 703 60 41ms 28 Feb 2023 816th Lv0Sys 🇵🇱 703 60 45ms 4 Dec 2025 819th primo-ppcg 🇹🇭 702 47 1,033ms 5 Feb 2022 820th MeWhenI 🇻🇦 702 238 12ms 29 Aug 2023 821st UnderKoen 🇳🇱 700 134 13ms 20 Jan 2025 822nd jared-hughes 699 44 6ms 31 Jul 2022 823rd NewDefectus 🇮🇱 699 76 2ms 25 Oct 2021 823rd JohandeRuiter 🇳🇱 699 76 2ms 3 Dec 2023 825th Shanethegamer 🇺🇸 699 77 13ms 9 Oct 2023 826th targrik 698 123 254ms 10 Jul 2025 827th jared-hughes 698 159 1,670ms 16 Sep 2025 828th AlephSquirrel 696 34 50ms 30 Dec 2022 829th neihousaigaai 696 67 10ms 10 Apr 2021 830th Jacob385 696 69 465ms 22 Apr 2024 831st targrik 695 57 5ms 26 Aug 2025 832nd SnowballSH 694 71 11ms 12 Feb 2021 832nd Andre3582 694 71 12ms 18 Mar 2021 832nd PhysicDev 🇫🇷 694 71 11ms 20 May 2021 832nd Alban-Boissard 694 71 13ms 10 Jun 2025 836th boxjelly 694 94 114ms 21 Jan 2021 836th YAJUE114514 694 94 133ms 24 Jul 2025 838th edsrzf 🇳🇿 692 91 21ms 21 Dec 2024 839th Espiobest 691 61 38ms 13 Feb 2021 839th DaCuteRaccoon 691 61 39ms 9 Dec 2022 841st JGDoerrer 690 103 402ms 5 Jan 2022 841st tailorspy 690 103 59ms 29 Oct 2023 843rd Shanethegamer 🇺🇸 690 106 17ms 4 Oct 2024 844th msbranicky 689 95 5ms 11 Aug 2023 845th NewDefectus 🇮🇱 688 32 34ms 20 Dec 2021 846th GolfingSuccess 🇬🇷 688 69 33ms 17 Aug 2024 847th Andriamanitra 🇫🇮 687 95 148ms 20 Jul 2023 848th KasperKivimaeki 🇫🇮 687 125 257ms 3 Oct 2025 849th msbranicky 685 89 2ms 26 Sep 2023 850th LeeCamp 684 72 10ms 16 Feb 2022 850th LukasFolwarczny 🇨🇿 684 72 10ms 16 Sep 2022 850th CutSandstone 684 72 41ms 8 Jul 2024 853rd dokutan 678 59 3ms 18 Jul 2025 854th Shanethegamer 🇺🇸 678 126 24ms 8 Jul 2021 855th Yewzir 🇧🇪 677 88 425ms 14 Oct 2023 856th jared-hughes 676 35 48ms 31 Jul 2022 856th Natanaelel 🇸🇪 676 35 56ms 18 Aug 2022 858th SirBogman 🇺🇸 676 44 197ms 22 Oct 2021 859th richard-oelze 🇩🇪 675 73 30ms 4 Apr 2021 859th mauro-1 🇮🇹 675 73 9ms 18 Aug 2021 859th gchenfc 675 73 10ms 24 Jan 2022 859th hiichbindermax 675 73 11ms 26 Feb 2022 859th Omega65536 🇩🇪 675 73 11ms 24 Nov 2022 859th sandorstormen 675 73 11ms 18 Feb 2023 859th Mr-McChicken 675 73 11ms 15 Oct 2023 859th Masttest 675 73 10ms 21 Feb 2024 867th dokutan 675 99 372ms 24 Sep 2025 868th janbehrens 🇩🇪 673 68 1,239ms 9 Apr 2021 869th madex 🇩🇪 673 79 2ms 11 Jul 2024 870th msbranicky 672 80 4ms 11 Oct 2023 871st 5quiwyrm 670 54 302ms 5 Dec 2024 872nd I-Love-47 🇺🇦 670 106 62ms 10 Feb 2022 873rd DialFrost 🇸🇬 666 56 81ms 22 Jul 2024 874th CaedenHarper 🇨🇦 666 70 10ms 31 Jan 2025 875th jameslindesay 666 74 12ms 24 Feb 2021 875th PkmnQ 666 74 43ms 5 May 2024 875th RedzGoose 🇦🇺 666 74 11ms 14 Oct 2024 875th yokasuretsu 666 74 12ms 13 Jan 2025 879th Natanaelel 🇸🇪 663 56 3ms 20 Jan 2024 880th MeWhenI 🇻🇦 663 69 336ms 15 Feb 2023 First Prev 801–880 of 1,891 Next Last