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 881st Espiobest 692 61 34ms 13 Feb 2021 881st DaCuteRaccoon 692 61 42ms 9 Dec 2022 883rd msbranicky 691 95 5ms 11 Aug 2023 884th Shanethegamer 🇺🇸 691 106 18ms 4 Oct 2024 885th GolfingSuccess 🇬🇷 689 69 33ms 17 Aug 2024 886th richard-oelze 🇩🇪 688 73 31ms 4 Apr 2021 886th mauro-1 🇮🇹 688 73 10ms 18 Aug 2021 886th gchenfc 688 73 18ms 24 Jan 2022 886th hiichbindermax 688 73 11ms 26 Feb 2022 886th Omega65536 🇩🇪 688 73 12ms 24 Nov 2022 886th sandorstormen 688 73 13ms 18 Feb 2023 886th Mr-McChicken 688 73 11ms 15 Oct 2023 886th Masttest 688 73 11ms 21 Feb 2024 894th Andriamanitra 🇫🇮 688 95 148ms 20 Jul 2023 895th msbranicky 687 89 2ms 26 Sep 2023 896th DialFrost 🇸🇬 686 67 153ms 3 Aug 2024 897th MeWhenI 🇻🇦 685 72 360ms 15 Feb 2023 897th Yewzir 🇧🇪 685 72 383ms 5 Apr 2024 899th AdrienHache 🇫🇷 683 41 58ms 23 Oct 2023 900th Shanethegamer 🇺🇸 683 126 24ms 8 Jul 2021 901st Yewzir 🇧🇪 682 90 384ms 14 Oct 2023 902nd I-Love-47 🇺🇦 680 106 60ms 10 Feb 2022 903rd dokutan 679 59 3ms 18 Jul 2025 904th jameslindesay 679 74 13ms 24 Feb 2021 904th PkmnQ 679 74 39ms 5 May 2024 904th HumanoidCPU 679 74 12ms 3 Jun 2024 904th RedzGoose 🇦🇺 679 74 12ms 14 Oct 2024 904th yokasuretsu 679 74 13ms 13 Jan 2025 909th AdrienHache 🇫🇷 675 91 381ms 31 Dec 2023 910th janbehrens 🇩🇪 674 68 1,239ms 9 Apr 2021 911th msbranicky 674 80 4ms 11 Oct 2023 912th 5quiwyrm 670 54 243ms 5 Dec 2024 913th tatzyr 🇯🇵 670 63 39ms 29 Dec 2024 914th Trunksistor 🇫🇷 670 75 11ms 25 May 2022 914th celiendonze 🇨🇭 670 75 13ms 16 Jun 2023 914th qwjhvbxi 670 75 11ms 9 Feb 2024 914th wenbang24 670 75 13ms 6 Apr 2024 918th DialFrost 🇸🇬 667 56 83ms 22 Jul 2024 919th SirBogman 🇺🇸 667 108 65ms 3 Jan 2022 920th CaedenHarper 🇨🇦 666 70 11ms 31 Jan 2025 921st 77Tigers 665 114 144ms 9 Apr 2024 922nd Natanaelel 🇸🇪 664 56 4ms 20 Jan 2024 923rd DialFrost 🇸🇬 664 75 159ms 3 Jun 2025 924th edsrzf 🇳🇿 664 92 2ms 2 days ago 925th dokutan 663 69 1,133ms 30 Aug 2025 926th Waffle3z 661 76 12ms 20 Jan 2021 926th hellwue 661 76 12ms 16 Nov 2023 926th dokutan 661 76 18ms 24 Mar 2025 929th HumanoidCPU 659 73 485ms 3 Jun 2024 930th uttumuttu 🇫🇮 657 71 10ms 8 Jan 2022 930th olleicua 🇺🇸 657 71 10ms 20 Feb 2024 932nd emgordon154 656 70 143ms 6 Sep 2024 933rd albanian-laundromat 🇺🇸 655 98 39ms 28 Nov 2025 934th msbranicky 655 134 363ms 3 Oct 2023 935th f-tucker 653 77 13ms 2 Feb 2024 935th undefinedRyan 653 77 12ms 19 Apr 2025 935th Emutis 🇱🇹 653 77 11ms 12 Sep 2025 938th dokutan 653 94 392ms 18 Jul 2025 939th olivermrose 🇺🇸 652 57 3ms 24 Aug 2021 940th jwhear 🇺🇸 651 171 1,847ms 1 Oct 2024 941st boxjelly 650 65 41ms 11 Feb 2021 941st msbranicky 650 65 38ms 12 Sep 2023 943rd janbehrens 🇩🇪 650 135 368ms 13 Jun 2021 944th MeWhenI 🇻🇦 647 71 138ms 3 Aug 2024 945th johnnythedoggie 647 106 111ms 3 Mar 2021 945th snoozingnewt 🇨🇦 647 106 99ms 21 Nov 2025 947th rboath 644 58 83ms 8 Jan 2025 948th AkashTandon167 644 78 13ms 25 May 2021 948th jhpaques 🇫🇷 644 78 25ms 30 Nov 2022 950th SirBogman 🇺🇸 644 84 2ms 14 Dec 2021 951st MateuszPietrzak 🇵🇱 644 112 52ms 16 Jan 2024 952nd annaproxy 643 93 96ms 24 Dec 2022 953rd NickTheEASDude 🇺🇸 643 95 1ms 1 Jul 2024 954th Shanethegamer 🇺🇸 642 97 9ms 22 Dec 2023 955th nephila-nacrea 🇬🇧 641 58 3ms 3 Feb 2021 956th KatieLG 🇬🇧 641 77 247ms 2 Oct 2022 957th Bubbler-4 641 97 65ms 13 Sep 2023 958th CaedenHarper 🇨🇦 641 107 472ms 6 Oct 2025 959th alomiF 640 102 124ms 4 Nov 2024 960th Maznek 639 73 10ms 30 Jun 2023 First Prev 881–960 of 2,024 Next Last