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 Dragon Curve 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 Dragon Curve 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 dokutan 694 99 486ms 24 Sep 2025 882nd MeWhenI 🇻🇦 694 106 345ms 26 Aug 2023 883rd msbranicky 693 95 5ms 11 Aug 2023 884th Shanethegamer 🇺🇸 693 106 18ms 4 Oct 2024 885th Espiobest 692 61 39ms 13 Feb 2021 885th DaCuteRaccoon 692 61 44ms 9 Dec 2022 887th richard-oelze 🇩🇪 688 73 31ms 4 Apr 2021 887th mauro-1 🇮🇹 688 73 10ms 18 Aug 2021 887th gchenfc 688 73 18ms 24 Jan 2022 887th hiichbindermax 688 73 11ms 26 Feb 2022 887th Omega65536 🇩🇪 688 73 12ms 24 Nov 2022 887th sandorstormen 688 73 13ms 18 Feb 2023 887th Mr-McChicken 688 73 11ms 15 Oct 2023 887th Masttest 688 73 11ms 21 Feb 2024 895th Andriamanitra 🇫🇮 688 95 148ms 20 Jul 2023 896th DialFrost 🇸🇬 687 67 128ms 3 Aug 2024 897th msbranicky 687 89 2ms 26 Sep 2023 898th MeWhenI 🇻🇦 686 72 360ms 15 Feb 2023 898th Yewzir 🇧🇪 686 72 383ms 5 Apr 2024 900th AdrienHache 🇫🇷 684 41 58ms 23 Oct 2023 901st Shanethegamer 🇺🇸 684 126 24ms 8 Jul 2021 902nd Yewzir 🇧🇪 683 90 398ms 14 Oct 2023 903rd I-Love-47 🇺🇦 681 106 62ms 10 Feb 2022 904th dokutan 680 59 3ms 18 Jul 2025 905th GolfingSuccess 🇬🇷 680 69 33ms 17 Aug 2024 906th jameslindesay 679 74 13ms 24 Feb 2021 906th PkmnQ 679 74 39ms 5 May 2024 906th HumanoidCPU 679 74 11ms 3 Jun 2024 906th RedzGoose 🇦🇺 679 74 12ms 14 Oct 2024 906th yokasuretsu 679 74 13ms 13 Jan 2025 911th janbehrens 🇩🇪 675 68 1,441ms 9 Apr 2021 912th msbranicky 675 80 4ms 11 Oct 2023 913th AdrienHache 🇫🇷 675 91 411ms 31 Dec 2023 914th 5quiwyrm 671 54 276ms 5 Dec 2024 915th tatzyr 🇯🇵 670 63 39ms 29 Dec 2024 916th Trunksistor 🇫🇷 670 75 11ms 25 May 2022 916th celiendonze 🇨🇭 670 75 13ms 16 Jun 2023 916th qwjhvbxi 670 75 11ms 9 Feb 2024 916th wenbang24 670 75 13ms 6 Apr 2024 920th albanian-laundromat 🇺🇸 669 96 43ms 12 days ago 921st DialFrost 🇸🇬 668 56 83ms 22 Jul 2024 922nd SirBogman 🇺🇸 668 108 56ms 3 Jan 2022 923rd CaedenHarper 🇨🇦 666 70 12ms 31 Jan 2025 924th dokutan 665 69 1,188ms 30 Aug 2025 925th DialFrost 🇸🇬 665 75 159ms 3 Jun 2025 926th edsrzf 🇳🇿 665 92 2ms 15 days ago 927th 77Tigers 665 114 146ms 9 Apr 2024 928th Natanaelel 🇸🇪 664 56 4ms 20 Jan 2024 929th Waffle3z 661 76 12ms 20 Jan 2021 929th hellwue 661 76 12ms 16 Nov 2023 929th dokutan 661 76 18ms 24 Mar 2025 929th dcc5480 661 76 10ms 10 days ago 933rd HumanoidCPU 659 73 485ms 3 Jun 2024 934th emgordon154 658 70 137ms 6 Sep 2024 935th uttumuttu 🇫🇮 657 71 10ms 8 Jan 2022 935th olleicua 🇺🇸 657 71 11ms 20 Feb 2024 937th msbranicky 655 134 363ms 3 Oct 2023 938th dokutan 654 94 467ms 18 Jul 2025 939th olivermrose 🇺🇸 653 57 3ms 24 Aug 2021 940th f-tucker 653 77 13ms 2 Feb 2024 940th undefinedRyan 653 77 12ms 19 Apr 2025 940th Emutis 🇱🇹 653 77 11ms 12 Sep 2025 943rd boxjelly 650 65 41ms 11 Feb 2021 943rd msbranicky 650 65 42ms 12 Sep 2023 945th janbehrens 🇩🇪 650 135 368ms 13 Jun 2021 946th MeWhenI 🇻🇦 648 71 137ms 3 Aug 2024 947th johnnythedoggie 648 106 109ms 3 Mar 2021 947th snoozingnewt 🇨🇦 648 106 104ms 21 Nov 2025 949th rboath 645 58 83ms 8 Jan 2025 950th AkashTandon167 644 78 13ms 25 May 2021 950th jhpaques 🇫🇷 644 78 25ms 30 Nov 2022 952nd SirBogman 🇺🇸 644 84 2ms 14 Dec 2021 953rd annaproxy 644 93 96ms 24 Dec 2022 954th NickTheEASDude 🇺🇸 644 95 1ms 1 Jul 2024 955th MateuszPietrzak 🇵🇱 644 112 63ms 16 Jan 2024 956th Shanethegamer 🇺🇸 643 97 8ms 22 Dec 2023 957th KatieLG 🇬🇧 642 77 247ms 2 Oct 2022 958th Bubbler-4 642 97 65ms 13 Sep 2023 959th CaedenHarper 🇨🇦 642 107 491ms 6 Oct 2025 960th nephila-nacrea 🇬🇧 641 58 3ms 3 Feb 2021 First Prev 881–960 of 2,109 Next Last