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 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 Lily 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 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 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 Bytes Time Submitted 801st targrik 712 123 269ms 10 Jul 2025 802nd NewDefectus 🇮🇱 711 76 2ms 25 Oct 2021 802nd JohandeRuiter 🇳🇱 711 76 2ms 3 Dec 2023 804th MeWhenI 🇻🇦 711 90 1,429ms 14 Jun 2023 805th marcin7Cd 710 103 21ms 12 Feb 2021 806th Feniske 🇫🇷 709 51 270ms 21 Nov 2023 807th aadenboy 🇺🇸 709 86 2ms 16 Dec 2025 808th chordowl 709 92 116ms 17 Mar 2021 809th SnowballSH 707 71 11ms 12 Feb 2021 809th Andre3582 707 71 12ms 18 Mar 2021 809th PhysicDev 🇫🇷 707 71 11ms 20 May 2021 809th Alban-Boissard 707 71 13ms 10 Jun 2025 813th omurakazuaki 🇯🇵 706 66 10ms 18 Feb 2021 813th BambooleanLogic 🇸🇪 706 66 10ms 22 Aug 2022 813th coreynash 706 66 9ms 21 Oct 2023 813th two-bad 🇬🇧 706 66 11ms 24 Nov 2023 813th dylanarmstrong 706 66 11ms 15 Jan 2024 813th madeforlosers 706 66 10ms 5 Nov 2025 819th Stockoh 🇫🇷 706 68 449ms 24 Jun 2024 820th typeswitch-dev 🇵🇹 705 74 8ms 7 Aug 2023 821st snoozingnewt 🇨🇦 704 53 147ms 9 mins ago 822nd msbranicky 704 65 1,289ms 12 Sep 2023 823rd Shanethegamer 🇺🇸 704 91 39ms 16 Jun 2022 824th SnowballSH 703 60 38ms 12 Feb 2021 824th aksyristos 703 60 41ms 28 Feb 2023 824th Lv0Sys 🇵🇱 703 60 45ms 4 Dec 2025 827th primo-ppcg 🇹🇭 702 47 1,033ms 5 Feb 2022 828th MeWhenI 🇻🇦 702 238 12ms 29 Aug 2023 829th MeWhenI 🇻🇦 701 35 52ms 26 Jul 2022 829th jared-hughes 701 35 48ms 31 Jul 2022 829th Natanaelel 🇸🇪 701 35 56ms 18 Aug 2022 832nd KasperKivimaeki 🇫🇮 701 125 290ms 3 Oct 2025 833rd UnderKoen 🇳🇱 700 134 13ms 20 Jan 2025 834th JayXon 🇺🇸 699 40 46ms 2 Jun 2021 835th jared-hughes 699 44 6ms 31 Jul 2022 836th Shanethegamer 🇺🇸 699 77 13ms 9 Oct 2023 837th JGDoerrer 699 103 402ms 5 Jan 2022 837th tailorspy 699 103 59ms 29 Oct 2023 839th LeeCamp 698 72 10ms 16 Feb 2022 839th LukasFolwarczny 🇨🇿 698 72 10ms 16 Sep 2022 839th CutSandstone 698 72 41ms 8 Jul 2024 842nd jared-hughes 698 159 1,670ms 16 Sep 2025 843rd neihousaigaai 696 67 13ms 10 Apr 2021 844th targrik 695 57 5ms 26 Aug 2025 845th boxjelly 694 94 114ms 21 Jan 2021 845th YAJUE114514 694 94 133ms 24 Jul 2025 847th dokutan 693 99 372ms 24 Sep 2025 848th edsrzf 🇳🇿 692 91 21ms 21 Dec 2024 849th Espiobest 691 61 38ms 13 Feb 2021 849th DaCuteRaccoon 691 61 39ms 9 Dec 2022 851st MeWhenI 🇻🇦 691 106 345ms 26 Aug 2023 852nd Shanethegamer 🇺🇸 690 106 17ms 4 Oct 2024 853rd msbranicky 689 95 5ms 11 Aug 2023 854th GolfingSuccess 🇬🇷 688 69 33ms 17 Aug 2024 855th richard-oelze 🇩🇪 688 73 30ms 4 Apr 2021 855th mauro-1 🇮🇹 688 73 9ms 18 Aug 2021 855th gchenfc 688 73 10ms 24 Jan 2022 855th hiichbindermax 688 73 11ms 26 Feb 2022 855th Omega65536 🇩🇪 688 73 11ms 24 Nov 2022 855th sandorstormen 688 73 11ms 18 Feb 2023 855th Mr-McChicken 688 73 11ms 15 Oct 2023 855th Masttest 688 73 10ms 21 Feb 2024 863rd Andriamanitra 🇫🇮 687 95 148ms 20 Jul 2023 864th MeWhenI 🇻🇦 685 72 336ms 15 Feb 2023 864th Yewzir 🇧🇪 685 72 382ms 5 Apr 2024 866th msbranicky 685 89 2ms 26 Sep 2023 867th DialFrost 🇸🇬 684 67 135ms 3 Aug 2024 868th madex 🇩🇪 684 79 2ms 11 Jul 2024 869th AdrienHache 🇫🇷 682 41 48ms 23 Oct 2023 870th Yewzir 🇧🇪 682 90 425ms 14 Oct 2023 871st Shanethegamer 🇺🇸 680 126 24ms 8 Jul 2021 872nd jameslindesay 679 74 12ms 24 Feb 2021 872nd PkmnQ 679 74 43ms 5 May 2024 872nd HumanoidCPU 679 74 11ms 3 Jun 2024 872nd RedzGoose 🇦🇺 679 74 11ms 14 Oct 2024 872nd yokasuretsu 679 74 12ms 13 Jan 2025 877th I-Love-47 🇺🇦 679 106 62ms 10 Feb 2022 878th dokutan 678 59 3ms 18 Jul 2025 879th AdrienHache 🇫🇷 674 91 429ms 31 Dec 2023 880th janbehrens 🇩🇪 673 68 1,239ms 9 Apr 2021 First Prev 801–880 of 1,917 Next Last