Kolakoski Sequence in all languages in chars. 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 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 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 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 Apéry’s Constant Binary Lambda Calculus Connect Four Continued Fractions Crossword CSS Colors (Inverse) CSS Grid Ellipse Perimeters Flags Floyd-Steinberg Dithering Gray Code Decoder Gray Code Encoder Hexagonal Spiral Highly Composite Numbers Multitap Input NFA Simulator Numbrix Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Taxicab Numbers Turtle Tutorial All Languages ><> 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 ALGOL 68 APL ArkScript Arturo Befunge BQN CJam CoffeeScript Egel Fennel Harbour Hare Haxe Hush Hy iogii Knight Luau Odin Picat Qore Racket Rebol Rexx Scala Squirrel Stax Uiua Umka Vala Vyxal Bytes Chars Scoring Bytes Chars Language All ><> 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 ALGOL 68 APL ArkScript Arturo Befunge BQN CJam CoffeeScript Egel Fennel Harbour Hare Haxe Hush Hy iogii Knight 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 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 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 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 Apéry’s Constant Binary Lambda Calculus Connect Four Continued Fractions Crossword CSS Colors (Inverse) CSS Grid Ellipse Perimeters Flags Floyd-Steinberg Dithering Gray Code Decoder Gray Code Encoder Hexagonal Spiral Highly Composite Numbers Multitap Input NFA Simulator Numbrix Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Taxicab Numbers Turtle Tutorial # Golfer Points Chars Time Submitted 481st dokutan 843 47 5ms 18 Jul 2025 482nd Shanethegamer 🇺🇸 843 50 39ms 22 Mar 2023 482nd MeWhenI 🇻🇦 843 50 41ms 22 Mar 2023 484th Steffan153 🇫🇮 843 63 2ms 23 Mar 2023 484th stefangimmillaro 843 63 2ms 18 Sep 2023 484th xsot 🇸🇬 843 63 2ms 6 May 2025 484th KasperKivimaeki 🇫🇮 843 63 2ms 14 Aug 2025 488th MeWhenI 🇻🇦 842 57 445ms 17 Jan 2024 488th SirBogman 🇺🇸 842 57 433ms 10 Jun 2024 488th CaedenHarper 🇨🇦 842 57 447ms 9 Dec 2025 491st MeWhenI 🇻🇦 842 76 37ms 16 Jun 2022 492nd btnlq 841 43 252ms 26 Jan 2021 492nd primo-ppcg 🇹🇭 841 43 283ms 25 May 2021 494th primo-ppcg 🇹🇭 841 87 29ms 25 Jan 2023 495th fuzzylojik-golf 🇺🇸 840 22 3ms 6 Sep 2025 496th MeWhenI 🇻🇦 840 85 11ms 30 Oct 2021 497th acotis 839 90 126ms 3 Oct 2025 498th DialFrost 🇸🇬 839 132 1,663ms 17 hours ago 499th primo-ppcg 🇹🇭 836 85 53ms 18 Jan 2022 499th 09cf 836 85 60ms 24 Sep 2023 501st marcin7Cd 835 59 10ms 16 Jan 2021 501st AlephSquirrel 835 59 10ms 13 May 2021 501st rschwa6308 🇺🇸 835 59 10ms 28 Jun 2021 501st NewDefectus 🇮🇱 835 59 13ms 25 Oct 2021 501st jacksonhenry3 835 59 13ms 21 Dec 2021 501st NicoAdams 835 59 14ms 21 Dec 2021 501st yzhs 🇩🇪 835 59 10ms 7 Jun 2022 501st aksyristos 835 59 11ms 28 Feb 2023 501st BREMAUCY 🇫🇷 835 59 11ms 27 Apr 2023 501st MarcMush 🇫🇷 835 59 10ms 12 Feb 2024 501st CommandLeo 🇮🇹 835 59 11ms 7 hours ago 512th GrayJoKing 🇦🇺 833 57 36ms 5 Sep 2024 513th MeWhenI 🇻🇦 832 56 11ms 8 Jun 2022 513th Yewzir 🇧🇪 832 56 9ms 16 Nov 2023 513th voytxt 🇨🇿 832 56 9ms 25 Jan 2025 513th targrik 832 56 9ms 21 Feb 2025 517th sean-niemann 🇺🇸 832 77 41ms 18 Dec 2023 518th kritixilithos 831 58 3ms 29 May 2024 519th primo-ppcg 🇹🇭 831 77 1,449ms 30 Nov 2021 520th inventshah 830 64 2ms 17 Nov 2022 520th DialFrost 🇸🇬 830 64 2ms 7 Nov 2025 522nd sisyphus-ppcg 🇦🇺 829 60 104ms 25 Feb 2021 523rd Kacarott 🇦🇺 828 58 451ms 15 Jan 2024 523rd Natanaelel 🇸🇪 828 58 416ms 20 Jan 2024 523rd AlephSquirrel 828 58 429ms 21 Jan 2024 523rd namelessiw 828 58 407ms 15 Aug 2024 527th Irratix 🇳🇱 827 51 41ms 4 Mar 2022 528th GrayJoKing 🇦🇺 827 65 4ms 9 Nov 2023 529th Yewzir 🇧🇪 826 83 371ms 16 Nov 2023 530th MeWhenI 🇻🇦 825 104 240ms 8 Feb 2023 531st MeWhenI 🇻🇦 824 78 117ms 14 Oct 2022 532nd Shanethegamer 🇺🇸 823 83 83ms 19 Apr 2022 533rd GrayJoKing 🇦🇺 822 81 120ms 14 Mar 2022 533rd MeWhenI 🇻🇦 822 81 121ms 15 Nov 2022 535th AGoyet 821 60 12ms 29 Jun 2022 535th betaveros 821 60 18ms 31 Dec 2022 535th AlexanderFair 821 60 10ms 23 Jun 2023 535th Andriamanitra 🇫🇮 821 60 13ms 20 Jul 2023 535th dranjohn 821 60 49ms 15 Sep 2023 535th inverseLorentz 🇦🇺 821 60 10ms 9 Apr 2024 535th 051 🇸🇬 821 60 14ms 1 Aug 2024 535th vgamula 🇺🇦 821 60 31ms 28 Jul 2025 535th LuisGoncalves05 🇵🇹 821 60 10ms 29 Jul 2025 535th luuumine 🇫🇷 821 60 11ms 20 Oct 2025 535th solisolu 821 60 11ms 16 days ago 546th emgordon154 821 105 109ms 4 Dec 2025 547th NewDefectus 🇮🇱 818 57 10ms 1 Nov 2021 548th prplz 🇦🇺 818 65 2ms 24 Jan 2021 548th sisyphus-ppcg 🇦🇺 818 65 2ms 25 Jan 2021 548th 09cf 818 65 2ms 24 Sep 2023 551st inventshah 817 59 2ms 18 May 2022 551st MeWhenI 🇻🇦 817 59 2ms 18 May 2022 553rd m-tkach 🇺🇦 817 101 28ms 18 Jan 2024 554th MeWhenI 🇻🇦 816 29 60ms 25 Aug 2022 555th ovs-code 🇩🇪 816 52 134ms 4 Aug 2024 556th GrayJoKing 🇦🇺 816 84 462ms 28 Feb 2022 557th MeWhenI 🇻🇦 815 27 33ms 16 Mar 2022 558th Yewzir 🇧🇪 815 61 111ms 16 Nov 2023 559th ovs-code 🇩🇪 815 66 2ms 10 Oct 2023 559th inventshah 815 66 2ms 22 Oct 2023 First Prev 481–560 of 1,884 Next Last