Kolakoski Sequence in all languages in bytes. 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 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 Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Taxicab Numbers Turtle Tutorial # Golfer Points Bytes Time Submitted 801st prplz 🇦🇺 717 91 118ms 25 Jan 2021 802nd marshallward 🇺🇸 716 100 41ms 7 May 2025 803rd NewDefectus 🇮🇱 715 32 34ms 20 Dec 2021 804th NewDefectus 🇮🇱 714 21 2ms 14 Jan 2022 805th prplz 🇦🇺 714 52 3ms 5 Feb 2021 806th MarcMush 🇫🇷 714 69 304ms 12 Feb 2024 807th Herbert00709 🇵🇱 713 101 60ms 19 Nov 2024 808th emgordon154 712 80 2,291ms 9 Aug 2025 809th targrik 712 123 305ms 10 Jul 2025 810th NewDefectus 🇮🇱 711 76 2ms 25 Oct 2021 810th JohandeRuiter 🇳🇱 711 76 2ms 3 Dec 2023 812th MeWhenI 🇻🇦 711 90 1,429ms 14 Jun 2023 813th marcin7Cd 710 103 21ms 12 Feb 2021 814th Feniske 🇫🇷 709 51 270ms 21 Nov 2023 815th aadenboy 🇺🇸 709 86 2ms 16 Dec 2025 816th chordowl 709 92 116ms 17 Mar 2021 817th SnowballSH 707 71 11ms 12 Feb 2021 817th Andre3582 707 71 11ms 18 Mar 2021 817th PhysicDev 🇫🇷 707 71 10ms 20 May 2021 817th Alban-Boissard 707 71 12ms 10 Jun 2025 821st omurakazuaki 🇯🇵 706 66 10ms 18 Feb 2021 821st BambooleanLogic 🇸🇪 706 66 9ms 22 Aug 2022 821st coreynash 706 66 10ms 21 Oct 2023 821st two-bad 🇬🇧 706 66 10ms 24 Nov 2023 821st dylanarmstrong 706 66 10ms 15 Jan 2024 821st madeforlosers 706 66 10ms 5 Nov 2025 827th Stockoh 🇫🇷 706 68 427ms 24 Jun 2024 828th typeswitch-dev 🇵🇹 705 74 8ms 7 Aug 2023 829th msbranicky 704 65 1,289ms 12 Sep 2023 830th Shanethegamer 🇺🇸 704 91 39ms 16 Jun 2022 831st SnowballSH 703 60 36ms 12 Feb 2021 831st aksyristos 703 60 41ms 28 Feb 2023 831st Lv0Sys 🇵🇱 703 60 37ms 4 Dec 2025 834th primo-ppcg 🇹🇭 702 47 1,032ms 5 Feb 2022 835th MeWhenI 🇻🇦 702 238 12ms 29 Aug 2023 836th MeWhenI 🇻🇦 701 35 52ms 26 Jul 2022 836th jared-hughes 701 35 44ms 31 Jul 2022 836th Natanaelel 🇸🇪 701 35 51ms 18 Aug 2022 839th KasperKivimaeki 🇫🇮 701 125 299ms 3 Oct 2025 840th JayXon 🇺🇸 700 40 46ms 2 Jun 2021 841st UnderKoen 🇳🇱 700 134 13ms 20 Jan 2025 842nd jared-hughes 699 44 6ms 31 Jul 2022 843rd Shanethegamer 🇺🇸 699 77 13ms 9 Oct 2023 844th JGDoerrer 699 103 423ms 5 Jan 2022 844th tailorspy 699 103 58ms 29 Oct 2023 846th LeeCamp 698 72 10ms 16 Feb 2022 846th LukasFolwarczny 🇨🇿 698 72 10ms 16 Sep 2022 846th CutSandstone 698 72 38ms 8 Jul 2024 849th jared-hughes 698 159 1,670ms 16 Sep 2025 850th neihousaigaai 696 67 10ms 10 Apr 2021 851st targrik 695 57 5ms 26 Aug 2025 852nd boxjelly 694 94 114ms 21 Jan 2021 852nd YAJUE114514 694 94 133ms 24 Jul 2025 854th dokutan 693 99 372ms 24 Sep 2025 855th edsrzf 🇳🇿 692 91 21ms 21 Dec 2024 856th Espiobest 691 61 38ms 13 Feb 2021 856th DaCuteRaccoon 691 61 37ms 9 Dec 2022 858th MeWhenI 🇻🇦 691 106 345ms 26 Aug 2023 859th Shanethegamer 🇺🇸 690 106 17ms 4 Oct 2024 860th msbranicky 689 95 5ms 11 Aug 2023 861st GolfingSuccess 🇬🇷 688 69 33ms 17 Aug 2024 862nd richard-oelze 🇩🇪 688 73 30ms 4 Apr 2021 862nd mauro-1 🇮🇹 688 73 9ms 18 Aug 2021 862nd gchenfc 688 73 9ms 24 Jan 2022 862nd hiichbindermax 688 73 11ms 26 Feb 2022 862nd Omega65536 🇩🇪 688 73 11ms 24 Nov 2022 862nd sandorstormen 688 73 11ms 18 Feb 2023 862nd Mr-McChicken 688 73 10ms 15 Oct 2023 862nd Masttest 688 73 10ms 21 Feb 2024 870th Andriamanitra 🇫🇮 687 95 148ms 20 Jul 2023 871st MeWhenI 🇻🇦 685 72 312ms 15 Feb 2023 871st Yewzir 🇧🇪 685 72 398ms 5 Apr 2024 873rd msbranicky 685 89 2ms 26 Sep 2023 874th DialFrost 🇸🇬 684 67 135ms 3 Aug 2024 875th madex 🇩🇪 684 79 2ms 11 Jul 2024 876th AdrienHache 🇫🇷 683 41 48ms 23 Oct 2023 877th Yewzir 🇧🇪 682 90 421ms 14 Oct 2023 878th Shanethegamer 🇺🇸 680 126 24ms 8 Jul 2021 879th jameslindesay 679 74 11ms 24 Feb 2021 879th PkmnQ 679 74 37ms 5 May 2024 First Prev 801–880 of 1,927 Next Last