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) Taxicab Numbers 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 Huffman Encoder NFA Simulator Nim Numbrix Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Rectangle Fill Semiprime Numbers Smooth Numbers Snake Sphenic 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) Taxicab Numbers 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 Huffman Encoder NFA Simulator Nim Numbrix Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Rectangle Fill Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Turtle Tutorial # Golfer Points Bytes Time Submitted 499th voytxt 🇨🇿 848 55 10ms 7 hours ago 502nd primo-ppcg 🇹🇭 848 85 59ms 18 Jan 2022 502nd 09cf 848 85 66ms 24 Sep 2023 504th ovs-code 🇩🇪 846 87 110ms 8 Mar 2024 504th Steffan153 🇫🇮 846 87 15ms 11 days ago 506th dokutan 845 47 5ms 18 Jul 2025 507th Shanethegamer 🇺🇸 845 50 40ms 22 Mar 2023 507th MeWhenI 🇻🇦 845 50 39ms 22 Mar 2023 509th KatieLG 🇬🇧 843 57 477ms 15 Jan 2024 509th kg583 🇺🇸 843 57 421ms 15 Jan 2024 509th GrayJoKing 🇦🇺 843 57 496ms 15 Jan 2024 509th MeWhenI 🇻🇦 843 57 548ms 17 Jan 2024 509th Yewzir 🇧🇪 843 57 494ms 29 Feb 2024 509th SirBogman 🇺🇸 843 57 484ms 10 Jun 2024 509th lifthrasiir 🇰🇷 843 57 470ms 2 Dec 2024 509th GolfingSuccess 🇬🇷 843 57 476ms 24 Dec 2024 509th emgordon154 843 57 448ms 23 Apr 2025 509th Babafaba 843 57 458ms 19 Nov 2025 509th CaedenHarper 🇨🇦 843 57 548ms 9 Dec 2025 520th MeWhenI 🇻🇦 843 104 333ms 8 Feb 2023 521st btnlq 842 43 262ms 26 Jan 2021 521st primo-ppcg 🇹🇭 842 43 255ms 25 May 2021 523rd MeWhenI 🇻🇦 842 76 37ms 16 Jun 2022 524th primo-ppcg 🇹🇭 842 87 30ms 25 Jan 2023 525th fuzzylojik-golf 🇺🇸 841 23 3ms 6 Sep 2025 526th sisyphus-ppcg 🇦🇺 841 89 121ms 25 Jan 2021 526th Bubbler-4 841 89 120ms 1 Jul 2021 528th GrayJoKing 🇦🇺 840 84 466ms 28 Feb 2022 529th AGoyet 838 60 14ms 29 Jun 2022 529th jakobkordez 🇸🇮 838 60 16ms 8 Nov 2022 529th betaveros 838 60 20ms 31 Dec 2022 529th AlexanderFair 838 60 11ms 23 Jun 2023 529th Andriamanitra 🇫🇮 838 60 13ms 20 Jul 2023 529th dranjohn 838 60 51ms 15 Sep 2023 529th SB-945 838 60 12ms 20 Feb 2024 529th inverseLorentz 🇦🇺 838 60 12ms 9 Apr 2024 529th 051 🇸🇬 838 60 12ms 1 Aug 2024 529th vgamula 🇺🇦 838 60 33ms 28 Jul 2025 529th LuisGoncalves05 🇵🇹 838 60 11ms 29 Jul 2025 529th solisolu 838 60 11ms 1 Jan 2026 541st GrayJoKing 🇦🇺 835 55 136ms 6 Aug 2024 542nd Yewzir 🇧🇪 834 136 1,650ms 12 days ago 543rd nwellnhof 🇩🇪 833 43 167ms 21 Oct 2021 543rd primo-ppcg 🇹🇭 833 43 162ms 22 Apr 2022 545th MeWhenI 🇻🇦 833 56 11ms 8 Jun 2022 545th Yewzir 🇧🇪 833 56 10ms 16 Nov 2023 545th targrik 833 56 10ms 21 Feb 2025 548th kritixilithos 832 58 3ms 29 May 2024 549th prplz 🇦🇺 832 65 2ms 24 Jan 2021 549th sisyphus-ppcg 🇦🇺 832 65 2ms 25 Jan 2021 549th inventshah 832 65 2ms 17 Nov 2022 549th 09cf 832 65 2ms 24 Sep 2023 549th DialFrost 🇸🇬 832 65 2ms 6 May 2025 554th sean-niemann 🇺🇸 832 77 41ms 18 Dec 2023 555th acotis 832 90 130ms 3 Oct 2025 556th primo-ppcg 🇹🇭 831 77 1,534ms 30 Nov 2021 557th sisyphus-ppcg 🇦🇺 830 60 148ms 25 Feb 2021 557th sean-niemann 🇺🇸 830 60 155ms 27 Dec 2023 559th Yewzir 🇧🇪 830 85 469ms 16 Nov 2023 560th neel11235813 829 58 536ms 15 Jan 2024 560th Kacarott 🇦🇺 829 58 461ms 15 Jan 2024 560th Shanethegamer 🇺🇸 829 58 487ms 16 Jan 2024 560th Natanaelel 🇸🇪 829 58 473ms 20 Jan 2024 560th AlephSquirrel 829 58 411ms 21 Jan 2024 560th namelessiw 829 58 509ms 15 Aug 2024 560th snoozingnewt 🇨🇦 829 58 480ms 1 Dec 2025 567th GrayJoKing 🇦🇺 829 65 3ms 9 Nov 2023 568th Irratix 🇳🇱 828 51 39ms 4 Mar 2022 569th emgordon154 828 137 1,675ms 16 days ago 570th Shanethegamer 🇺🇸 826 83 100ms 19 Apr 2022 571st MeWhenI 🇻🇦 825 78 112ms 14 Oct 2022 572nd GrayJoKing 🇦🇺 825 81 126ms 14 Mar 2022 572nd MeWhenI 🇻🇦 825 81 130ms 15 Nov 2022 574th petroselo 824 61 10ms 16 Nov 2021 574th Irratix 🇳🇱 824 61 12ms 8 Dec 2021 574th cubed-guy 824 61 12ms 12 Feb 2022 574th CedricGebistorf 824 61 12ms 18 Feb 2022 574th jascotm 824 61 11ms 17 May 2022 574th Eilonlif 🇮🇱 824 61 39ms 9 Sep 2022 574th vishwathg 824 61 21ms 18 Sep 2022 574th ZakkkkAttackkkk 🇵🇭 824 61 13ms 19 Aug 2023 574th jtaxen 824 61 10ms 26 Mar 2024 574th ahmetdemirag 🇨🇾 824 61 18ms 5 Nov 2024 574th Pyroan 824 61 13ms 16 Mar 2025 574th tri1212 🇻🇳 824 61 12ms 16 Apr 2025 574th zgialor-lab 824 61 10ms 20 days ago 587th alemelis 822 60 1,968ms 14 Aug 2024 587th antimon2 🇯🇵 822 60 517ms 12 days ago 589th Steffan153 🇫🇮 822 110 6ms 14 days ago 590th GrayJoKing 🇦🇺 821 57 36ms 5 Sep 2024 591st ovs-code 🇩🇪 820 56 137ms 3 Aug 2024 592nd primo-ppcg 🇹🇭 820 66 2ms 18 Jan 2021 592nd jared-hughes 820 66 2ms 31 Jul 2022 594th KasperKivimaeki 🇫🇮 819 88 61ms 27 Nov 2025 594th emgordon154 819 88 61ms 8 Feb 2026 596th m-tkach 🇺🇦 819 101 29ms 18 Jan 2024 597th NewDefectus 🇮🇱 818 57 11ms 1 Nov 2021 598th inventshah 818 59 2ms 18 May 2022 598th MeWhenI 🇻🇦 818 59 2ms 18 May 2022 600th Shanethegamer 🇺🇸 817 84 452ms 25 Sep 2025 First Prev 501–600 of 2,033 Next Last