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 9 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 511th GrayJoKing 🇦🇺 833 57 36ms 5 Sep 2024 512th MeWhenI 🇻🇦 832 56 11ms 8 Jun 2022 512th Yewzir 🇧🇪 832 56 9ms 16 Nov 2023 512th voytxt 🇨🇿 832 56 9ms 25 Jan 2025 512th targrik 832 56 9ms 21 Feb 2025 516th sean-niemann 🇺🇸 832 77 41ms 18 Dec 2023 517th kritixilithos 831 58 3ms 29 May 2024 518th primo-ppcg 🇹🇭 831 77 1,449ms 30 Nov 2021 519th inventshah 830 64 2ms 17 Nov 2022 519th DialFrost 🇸🇬 830 64 2ms 7 Nov 2025 521st sisyphus-ppcg 🇦🇺 829 60 104ms 25 Feb 2021 522nd Kacarott 🇦🇺 828 58 451ms 15 Jan 2024 522nd Natanaelel 🇸🇪 828 58 416ms 20 Jan 2024 522nd AlephSquirrel 828 58 429ms 21 Jan 2024 522nd namelessiw 828 58 407ms 15 Aug 2024 526th Irratix 🇳🇱 827 51 41ms 4 Mar 2022 527th GrayJoKing 🇦🇺 827 65 4ms 9 Nov 2023 528th Yewzir 🇧🇪 826 83 371ms 16 Nov 2023 529th MeWhenI 🇻🇦 825 104 240ms 8 Feb 2023 530th MeWhenI 🇻🇦 824 78 117ms 14 Oct 2022 531st Shanethegamer 🇺🇸 823 83 83ms 19 Apr 2022 532nd GrayJoKing 🇦🇺 822 81 120ms 14 Mar 2022 532nd MeWhenI 🇻🇦 822 81 121ms 15 Nov 2022 534th AGoyet 821 60 12ms 29 Jun 2022 534th betaveros 821 60 18ms 31 Dec 2022 534th AlexanderFair 821 60 10ms 23 Jun 2023 534th Andriamanitra 🇫🇮 821 60 13ms 20 Jul 2023 534th dranjohn 821 60 49ms 15 Sep 2023 534th inverseLorentz 🇦🇺 821 60 10ms 9 Apr 2024 534th 051 🇸🇬 821 60 14ms 1 Aug 2024 534th vgamula 🇺🇦 821 60 31ms 28 Jul 2025 534th LuisGoncalves05 🇵🇹 821 60 10ms 29 Jul 2025 534th luuumine 🇫🇷 821 60 11ms 20 Oct 2025 534th solisolu 821 60 11ms 16 days ago 545th emgordon154 821 105 109ms 4 Dec 2025 546th NewDefectus 🇮🇱 818 57 10ms 1 Nov 2021 547th prplz 🇦🇺 818 65 2ms 24 Jan 2021 547th sisyphus-ppcg 🇦🇺 818 65 2ms 25 Jan 2021 547th 09cf 818 65 2ms 24 Sep 2023 550th inventshah 817 59 2ms 18 May 2022 550th MeWhenI 🇻🇦 817 59 2ms 18 May 2022 552nd m-tkach 🇺🇦 817 101 28ms 18 Jan 2024 553rd MeWhenI 🇻🇦 816 29 60ms 25 Aug 2022 554th ovs-code 🇩🇪 816 52 134ms 4 Aug 2024 555th GrayJoKing 🇦🇺 816 84 462ms 28 Feb 2022 556th MeWhenI 🇻🇦 815 27 33ms 16 Mar 2022 557th Yewzir 🇧🇪 815 61 111ms 16 Nov 2023 558th ovs-code 🇩🇪 815 66 2ms 10 Oct 2023 558th inventshah 815 66 2ms 22 Oct 2023 560th BREMAUCY 🇫🇷 814 59 433ms 20 Feb 2024 First Prev 481–560 of 1,883 Next Last