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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 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 Multitap Input 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 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 Multitap Input 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 MeWhenI 🇻🇦 711 90 1,429ms 14 Jun 2023 802nd marcin7Cd 710 103 21ms 12 Feb 2021 803rd Feniske 🇫🇷 709 51 270ms 21 Nov 2023 804th aadenboy 🇺🇸 709 86 2ms 16 Dec 2025 805th chordowl 709 92 116ms 17 Mar 2021 806th SnowballSH 707 71 11ms 12 Feb 2021 806th Andre3582 707 71 10ms 18 Mar 2021 806th PhysicDev 🇫🇷 707 71 11ms 20 May 2021 806th Alban-Boissard 707 71 12ms 10 Jun 2025 810th omurakazuaki 🇯🇵 706 66 11ms 18 Feb 2021 810th BambooleanLogic 🇸🇪 706 66 9ms 22 Aug 2022 810th coreynash 706 66 9ms 21 Oct 2023 810th two-bad 🇬🇧 706 66 10ms 24 Nov 2023 810th dylanarmstrong 706 66 9ms 15 Jan 2024 810th madeforlosers 706 66 10ms 5 Nov 2025 816th Stockoh 🇫🇷 706 68 434ms 24 Jun 2024 817th typeswitch-dev 🇵🇹 705 74 8ms 7 Aug 2023 818th msbranicky 704 65 1,289ms 12 Sep 2023 819th Shanethegamer 🇺🇸 704 91 39ms 16 Jun 2022 820th SnowballSH 703 60 38ms 12 Feb 2021 820th aksyristos 703 60 41ms 28 Feb 2023 820th Lv0Sys 🇵🇱 703 60 45ms 4 Dec 2025 823rd primo-ppcg 🇹🇭 702 47 1,033ms 5 Feb 2022 824th MeWhenI 🇻🇦 702 238 12ms 29 Aug 2023 825th MeWhenI 🇻🇦 701 35 52ms 26 Jul 2022 825th jared-hughes 701 35 48ms 31 Jul 2022 825th Natanaelel 🇸🇪 701 35 56ms 18 Aug 2022 828th KasperKivimaeki 🇫🇮 701 125 257ms 3 Oct 2025 829th UnderKoen 🇳🇱 700 134 13ms 20 Jan 2025 830th JayXon 🇺🇸 699 40 52ms 2 Jun 2021 831st jared-hughes 699 44 6ms 31 Jul 2022 832nd Shanethegamer 🇺🇸 699 77 13ms 9 Oct 2023 833rd JGDoerrer 699 103 402ms 5 Jan 2022 833rd tailorspy 699 103 59ms 29 Oct 2023 835th LeeCamp 698 72 11ms 16 Feb 2022 835th LukasFolwarczny 🇨🇿 698 72 11ms 16 Sep 2022 835th CutSandstone 698 72 36ms 8 Jul 2024 838th jared-hughes 698 159 1,670ms 16 Sep 2025 839th neihousaigaai 696 67 10ms 10 Apr 2021 840th targrik 695 57 6ms 26 Aug 2025 841st boxjelly 694 94 114ms 21 Jan 2021 841st YAJUE114514 694 94 133ms 24 Jul 2025 843rd dokutan 693 99 805ms 24 Sep 2025 844th edsrzf 🇳🇿 692 91 21ms 21 Dec 2024 845th Espiobest 691 61 38ms 13 Feb 2021 845th DaCuteRaccoon 691 61 39ms 9 Dec 2022 847th MeWhenI 🇻🇦 691 106 341ms 26 Aug 2023 848th Shanethegamer 🇺🇸 690 106 17ms 4 Oct 2024 849th msbranicky 689 95 5ms 11 Aug 2023 850th GolfingSuccess 🇬🇷 688 69 33ms 17 Aug 2024 851st richard-oelze 🇩🇪 688 73 29ms 4 Apr 2021 851st mauro-1 🇮🇹 688 73 9ms 18 Aug 2021 851st gchenfc 688 73 9ms 24 Jan 2022 851st hiichbindermax 688 73 11ms 26 Feb 2022 851st Omega65536 🇩🇪 688 73 11ms 24 Nov 2022 851st sandorstormen 688 73 11ms 18 Feb 2023 851st Mr-McChicken 688 73 11ms 15 Oct 2023 851st Masttest 688 73 10ms 21 Feb 2024 859th Andriamanitra 🇫🇮 687 95 148ms 20 Jul 2023 860th MeWhenI 🇻🇦 685 72 336ms 15 Feb 2023 860th Yewzir 🇧🇪 685 72 382ms 5 Apr 2024 862nd msbranicky 685 89 2ms 26 Sep 2023 863rd DialFrost 🇸🇬 684 67 135ms 3 Aug 2024 864th madex 🇩🇪 684 79 2ms 11 Jul 2024 865th AdrienHache 🇫🇷 682 41 48ms 23 Oct 2023 866th Yewzir 🇧🇪 682 90 425ms 14 Oct 2023 867th jameslindesay 679 74 11ms 24 Feb 2021 867th PkmnQ 679 74 37ms 5 May 2024 867th HumanoidCPU 679 74 11ms 3 Jun 2024 867th RedzGoose 🇦🇺 679 74 13ms 14 Oct 2024 867th yokasuretsu 679 74 10ms 13 Jan 2025 872nd I-Love-47 🇺🇦 679 106 62ms 10 Feb 2022 873rd dokutan 678 59 3ms 18 Jul 2025 874th Shanethegamer 🇺🇸 678 126 24ms 8 Jul 2021 875th AdrienHache 🇫🇷 674 91 429ms 31 Dec 2023 876th janbehrens 🇩🇪 673 68 1,239ms 9 Apr 2021 877th msbranicky 672 80 4ms 11 Oct 2023 878th 5quiwyrm 670 54 302ms 5 Dec 2024 879th Trunksistor 🇫🇷 670 75 10ms 25 May 2022 879th celiendonze 🇨🇭 670 75 11ms 16 Jun 2023 First Prev 801–880 of 1,907 Next Last