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 555th snoozingnewt 🇨🇦 829 58 480ms 1 Dec 2025 562nd GrayJoKing 🇦🇺 829 65 4ms 9 Nov 2023 563rd Irratix 🇳🇱 828 51 34ms 4 Mar 2022 564th Shanethegamer 🇺🇸 828 83 97ms 19 Apr 2022 565th MeWhenI 🇻🇦 827 78 116ms 14 Oct 2022 566th GrayJoKing 🇦🇺 825 81 120ms 14 Mar 2022 566th MeWhenI 🇻🇦 825 81 120ms 15 Nov 2022 568th petroselo 824 61 10ms 16 Nov 2021 568th Irratix 🇳🇱 824 61 12ms 8 Dec 2021 568th cubed-guy 824 61 12ms 12 Feb 2022 568th CedricGebistorf 824 61 12ms 18 Feb 2022 568th jascotm 824 61 11ms 17 May 2022 568th Eilonlif 🇮🇱 824 61 39ms 9 Sep 2022 568th vishwathg 824 61 21ms 18 Sep 2022 568th ZakkkkAttackkkk 🇵🇭 824 61 13ms 19 Aug 2023 568th jtaxen 824 61 10ms 26 Mar 2024 568th ahmetdemirag 🇨🇾 824 61 18ms 5 Nov 2024 568th Pyroan 824 61 13ms 16 Mar 2025 568th tri1212 🇻🇳 824 61 12ms 16 Apr 2025 568th zgialor-lab 824 61 11ms 2 days ago 581st alemelis 823 60 1,968ms 14 Aug 2024 582nd ovs-code 🇩🇪 820 56 149ms 3 Aug 2024 583rd primo-ppcg 🇹🇭 820 66 2ms 18 Jan 2021 583rd jared-hughes 820 66 2ms 31 Jul 2022 585th KasperKivimaeki 🇫🇮 820 88 56ms 27 Nov 2025 585th emgordon154 820 88 57ms 8 Feb 2026 587th m-tkach 🇺🇦 819 101 29ms 18 Jan 2024 588th NewDefectus 🇮🇱 818 57 11ms 1 Nov 2021 589th inventshah 818 59 2ms 18 May 2022 589th MeWhenI 🇻🇦 818 59 2ms 18 May 2022 591st Yewzir 🇧🇪 818 61 148ms 16 Nov 2023 592nd duckyluuk 🇳🇱 818 70 2,273ms 28 Oct 2024 592nd jkelly467 818 70 2,503ms 22 Dec 2025 594th Shanethegamer 🇺🇸 818 84 468ms 25 Sep 2025 595th emgordon154 818 107 110ms 4 Dec 2025 596th Shanethegamer 🇺🇸 817 96 85ms 9 Jun 2022 597th ovs-code 🇩🇪 816 66 2ms 10 Oct 2023 597th inventshah 816 66 2ms 22 Oct 2023 599th Steffan153 🇫🇮 816 90 4ms 10 Feb 2023 600th BREMAUCY 🇫🇷 815 59 553ms 20 Feb 2024 601st Yewzir 🇧🇪 813 79 37ms 16 Nov 2023 602nd m-tkach 🇺🇦 813 106 25ms 25 Apr 2022 603rd Shanethegamer 🇺🇸 813 108 326ms 26 Sep 2021 604th janlelis 812 52 38ms 18 Jan 2021 604th hiddicop 🇸🇪 812 52 37ms 29 Jan 2021 604th prplz 🇦🇺 812 52 39ms 22 Apr 2021 604th anter69 🇭🇺 812 52 41ms 14 Jan 2022 604th OhmNomNom 812 52 76ms 12 Oct 2022 604th olleicua 🇺🇸 812 52 39ms 25 Feb 2024 604th emgordon154 812 52 40ms 26 Nov 2024 611th Steffan153 🇫🇮 812 79 1,328ms 23 Mar 2023 612th GolfingSuccess 🇬🇷 812 81 9ms 9 Sep 2022 613th m-tkach 🇺🇦 811 89 60ms 25 Apr 2022 613th MeWhenI 🇻🇦 811 89 57ms 8 May 2022 615th vezzick 810 62 13ms 12 Mar 2021 615th schachmattmatt 810 62 14ms 18 Aug 2021 615th cooljoseph1 810 62 24ms 6 May 2022 615th fredrik-bakke 🇳🇴 810 62 24ms 29 Sep 2022 615th nkoppel 810 62 16ms 19 Oct 2022 615th AodhanDalton 810 62 13ms 4 Nov 2022 615th nstearns96 🇬🇧 810 62 19ms 28 Nov 2022 615th adamnielson42 🇺🇸 810 62 12ms 10 Jan 2024 615th jbjd 810 62 11ms 2 Mar 2024 615th wh3n3v3r 🇨🇿 810 62 11ms 12 Nov 2024 615th jacekwladzinski 810 62 13ms 4 Oct 2025 615th Mabeloid 🇳🇴 810 62 12ms 26 Oct 2025 627th Shanethegamer 🇺🇸 809 76 387ms 13 Dec 2021 628th emgordon154 808 85 8ms 3 Jan 2025 629th Dazza314 🇬🇧 807 24 3ms 16 Apr 2021 630th emgordon154 807 67 2ms 22 Apr 2025 631st Shanethegamer 🇺🇸 807 94 120ms 25 Jan 2021 632nd Steffan153 🇫🇮 807 112 6ms 22 days ago 633rd stefangimmillaro 806 80 104ms 23 Sep 2023 634th DaDerpDuck 805 76 1ms 20 Jan 2021 635th prplz 🇦🇺 805 83 124ms 10 Jul 2024 636th ArmaanAS 804 58 13ms 4 Apr 2021 636th itsh01 804 58 11ms 18 Nov 2021 638th Steffan153 🇫🇮 804 60 2ms 6 May 2023 639th GolfingSuccess 🇬🇷 803 69 7ms 24 Dec 2024 640th MeWhenI 🇻🇦 802 50 3ms 11 Nov 2022 First Prev 561–640 of 2,054 Next Last