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 Gray Code Decoder Gray Code Encoder 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 Hexagonal Spiral Highly Composite Numbers NFA Simulator Numbrix Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Rectangle Fill Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Taxicab Numbers Turtle Tutorial All Languages ><> ALGOL 68 ArkScript 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 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 ArkScript 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 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 Gray Code Decoder Gray Code Encoder 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 Hexagonal Spiral Highly Composite Numbers NFA Simulator Numbrix Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Rectangle Fill Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Taxicab Numbers Turtle Tutorial # Golfer Points Bytes Time Submitted 874th Masttest 688 73 10ms 21 Feb 2024 882nd Andriamanitra 🇫🇮 687 95 148ms 20 Jul 2023 883rd MeWhenI 🇻🇦 685 72 312ms 15 Feb 2023 883rd Yewzir 🇧🇪 685 72 398ms 5 Apr 2024 885th msbranicky 685 89 2ms 26 Sep 2023 886th DialFrost 🇸🇬 684 67 154ms 3 Aug 2024 887th madex 🇩🇪 684 79 2ms 11 Jul 2024 888th AdrienHache 🇫🇷 683 41 48ms 23 Oct 2023 889th Yewzir 🇧🇪 682 90 387ms 14 Oct 2023 890th Shanethegamer 🇺🇸 681 126 24ms 8 Jul 2021 891st jameslindesay 679 74 11ms 24 Feb 2021 891st PkmnQ 679 74 37ms 5 May 2024 891st HumanoidCPU 679 74 11ms 3 Jun 2024 891st RedzGoose 🇦🇺 679 74 11ms 14 Oct 2024 891st yokasuretsu 679 74 11ms 13 Jan 2025 896th I-Love-47 🇺🇦 679 106 59ms 10 Feb 2022 897th dokutan 678 59 3ms 18 Jul 2025 898th AdrienHache 🇫🇷 674 91 406ms 31 Dec 2023 899th janbehrens 🇩🇪 673 68 1,239ms 9 Apr 2021 900th msbranicky 672 80 5ms 11 Oct 2023 901st 5quiwyrm 670 54 293ms 5 Dec 2024 902nd tatzyr 🇯🇵 670 63 39ms 29 Dec 2024 903rd Trunksistor 🇫🇷 670 75 11ms 25 May 2022 903rd celiendonze 🇨🇭 670 75 12ms 16 Jun 2023 903rd qwjhvbxi 670 75 11ms 9 Feb 2024 903rd wenbang24 670 75 14ms 6 Apr 2024 907th SirBogman 🇺🇸 667 108 61ms 3 Jan 2022 908th DialFrost 🇸🇬 666 56 83ms 22 Jul 2024 909th CaedenHarper 🇨🇦 666 70 10ms 31 Jan 2025 910th 77Tigers 664 114 144ms 9 Apr 2024 911th Natanaelel 🇸🇪 663 56 4ms 20 Jan 2024 912th DialFrost 🇸🇬 663 75 163ms 3 Jun 2025 913th dokutan 662 69 1,133ms 30 Aug 2025 914th Waffle3z 661 76 14ms 20 Jan 2021 914th hellwue 661 76 11ms 16 Nov 2023 914th dokutan 661 76 18ms 24 Mar 2025 917th HumanoidCPU 658 73 417ms 3 Jun 2024 918th uttumuttu 🇫🇮 657 71 9ms 8 Jan 2022 918th olleicua 🇺🇸 657 71 9ms 20 Feb 2024 920th emgordon154 655 70 142ms 6 Sep 2024 921st msbranicky 654 134 294ms 3 Oct 2023 922nd dokutan 653 94 392ms 18 Jul 2025 923rd albanian-laundromat 653 98 39ms 28 Nov 2025 924th olivermrose 🇺🇸 652 57 3ms 24 Aug 2021 925th f-tucker 652 77 11ms 2 Feb 2024 925th undefinedRyan 652 77 14ms 19 Apr 2025 925th Emutis 🇱🇹 652 77 12ms 12 Sep 2025 928th boxjelly 649 65 41ms 11 Feb 2021 928th msbranicky 649 65 38ms 12 Sep 2023 930th janbehrens 🇩🇪 649 135 282ms 13 Jun 2021 931st jwhear 🇺🇸 649 171 1,847ms 1 Oct 2024 932nd MeWhenI 🇻🇦 646 71 175ms 3 Aug 2024 933rd AkashTandon167 644 78 11ms 25 May 2021 933rd jhpaques 🇫🇷 644 78 20ms 30 Nov 2022 935th johnnythedoggie 644 106 111ms 3 Mar 2021 935th snoozingnewt 🇨🇦 644 106 99ms 21 Nov 2025 937th rboath 643 58 83ms 8 Jan 2025 938th SirBogman 🇺🇸 643 84 2ms 14 Dec 2021 939th MateuszPietrzak 🇵🇱 643 112 55ms 16 Jan 2024 940th annaproxy 642 93 96ms 24 Dec 2022 941st NickTheEASDude 🇺🇸 642 95 1ms 1 Jul 2024 942nd Shanethegamer 🇺🇸 641 97 9ms 22 Dec 2023 943rd CaedenHarper 🇨🇦 641 107 492ms 6 Oct 2025 944th nephila-nacrea 🇬🇧 640 58 3ms 3 Feb 2021 945th KatieLG 🇬🇧 640 77 235ms 2 Oct 2022 946th alomiF 640 102 124ms 4 Nov 2024 947th Maznek 639 73 10ms 30 Jun 2023 948th Bubbler-4 639 97 72ms 13 Sep 2023 949th MeWhenI 🇻🇦 637 82 10ms 21 Jul 2023 950th ashtraypettingzoo 🇺🇸 636 36 32ms 23 Feb 2023 951st emgordon154 636 44 49ms 19 Feb 2026 952nd twocatsinatrenchcoat 636 79 9ms 29 Mar 2022 952nd SniperSmiley 🇺🇸 636 79 41ms 23 Jun 2022 952nd Glinte 636 79 17ms 14 Dec 2023 952nd Bmrl7 636 79 13ms 19 Mar 2024 952nd acotis 636 79 12ms 25 days ago 957th sreyfe 636 119 156ms 9 Jun 2024 958th Shanethegamer 🇺🇸 635 57 258ms 27 Jul 2023 959th edsrzf 🇳🇿 635 138 294ms 21 Dec 2024 960th emgordon154 634 98 10ms 10 Dec 2024 First Prev 881–960 of 1,948 Next Last