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 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 Chars Time Submitted 481st Espiobest 850 58 11ms 13 Mar 2021 481st fgrosshans 🇫🇷 850 58 13ms 18 Jul 2022 481st MaxElf999 850 58 11ms 3 Oct 2022 481st Alex-x90 🇺🇸 850 58 31ms 23 Mar 2023 481st Natanaelel 🇸🇪 850 58 12ms 11 Apr 2023 481st InigoK 🇺🇸 850 58 32ms 28 May 2023 481st Kacarott 🇦🇺 850 58 36ms 13 Oct 2023 481st m42km 850 58 32ms 25 Nov 2023 481st NickTheEASDude 🇺🇸 850 58 31ms 1 Jul 2024 481st namelessiw 850 58 31ms 27 Jul 2024 481st croc54 850 58 30ms 9 Jan 2025 481st andrewjc2000 850 58 30ms 11 Mar 2025 481st wuduculfre 850 58 31ms 22 Jul 2025 481st robin-scragg 850 58 14ms 21 Oct 2025 495th ovs-code 🇩🇪 850 81 458ms 15 Jun 2024 496th jared-hughes 848 55 11ms 31 Jul 2022 496th emgordon154 848 55 13ms 4 Mar 2025 498th jared-hughes 848 84 58ms 31 Jul 2022 499th dokutan 845 47 5ms 18 Jul 2025 500th Shanethegamer 🇺🇸 845 50 36ms 22 Mar 2023 500th MeWhenI 🇻🇦 845 50 38ms 22 Mar 2023 502nd MeWhenI 🇻🇦 845 76 37ms 16 Jun 2022 503rd MeWhenI 🇻🇦 844 57 548ms 17 Jan 2024 503rd SirBogman 🇺🇸 844 57 484ms 10 Jun 2024 503rd CaedenHarper 🇨🇦 844 57 548ms 9 Dec 2025 503rd flekAI 844 57 415ms 2 days ago 507th Steffan153 🇫🇮 844 63 2ms 23 Mar 2023 507th stefangimmillaro 844 63 2ms 18 Sep 2023 507th xsot 🇸🇬 844 63 2ms 6 May 2025 507th KasperKivimaeki 🇫🇮 844 63 2ms 14 Aug 2025 511th btnlq 843 43 240ms 26 Jan 2021 511th primo-ppcg 🇹🇭 843 43 216ms 25 May 2021 513th acotis 843 90 136ms 3 Oct 2025 514th primo-ppcg 🇹🇭 842 87 30ms 25 Jan 2023 515th emgordon154 841 78 76ms 2 days ago 516th fuzzylojik-golf 🇻🇦 840 22 3ms 6 Sep 2025 517th primo-ppcg 🇹🇭 838 85 58ms 18 Jan 2022 517th 09cf 838 85 59ms 24 Sep 2023 519th marcin7Cd 836 59 12ms 16 Jan 2021 519th AlephSquirrel 836 59 12ms 13 May 2021 519th rschwa6308 🇺🇸 836 59 11ms 28 Jun 2021 519th NewDefectus 🇮🇱 836 59 13ms 25 Oct 2021 519th jacksonhenry3 836 59 13ms 21 Dec 2021 519th NicoAdams 836 59 13ms 21 Dec 2021 519th yzhs 🇩🇪 836 59 11ms 7 Jun 2022 519th aksyristos 836 59 16ms 28 Feb 2023 519th BREMAUCY 🇫🇷 836 59 11ms 27 Apr 2023 519th MarcMush 🇫🇷 836 59 11ms 12 Feb 2024 519th CommandLeo 🇮🇹 836 59 12ms 18 Jan 2026 519th pengu1n-master 836 59 12ms 10 Feb 2026 519th retrohun 836 59 11ms 3 days ago 532nd GrayJoKing 🇦🇺 835 57 36ms 5 Sep 2024 533rd sean-niemann 🇺🇸 834 77 41ms 18 Dec 2023 534th MeWhenI 🇻🇦 833 56 11ms 8 Jun 2022 534th Yewzir 🇧🇪 833 56 13ms 16 Nov 2023 534th voytxt 🇨🇿 833 56 11ms 25 Jan 2025 534th targrik 833 56 10ms 21 Feb 2025 538th primo-ppcg 🇹🇭 833 77 1,386ms 30 Nov 2021 539th kritixilithos 832 58 3ms 29 May 2024 540th sisyphus-ppcg 🇦🇺 831 60 148ms 25 Feb 2021 541st inventshah 831 64 2ms 17 Nov 2022 541st DialFrost 🇸🇬 831 64 2ms 7 Nov 2025 543rd Kacarott 🇦🇺 829 58 461ms 15 Jan 2024 543rd Natanaelel 🇸🇪 829 58 473ms 20 Jan 2024 543rd AlephSquirrel 829 58 411ms 21 Jan 2024 543rd namelessiw 829 58 509ms 15 Aug 2024 547th GrayJoKing 🇦🇺 829 65 4ms 9 Nov 2023 548th Yewzir 🇧🇪 829 83 469ms 16 Nov 2023 549th emgordon154 829 105 110ms 4 Dec 2025 550th Irratix 🇳🇱 828 51 34ms 4 Mar 2022 551st Shanethegamer 🇺🇸 828 83 97ms 19 Apr 2022 552nd MeWhenI 🇻🇦 827 78 116ms 14 Oct 2022 553rd MeWhenI 🇻🇦 827 104 333ms 8 Feb 2023 554th GrayJoKing 🇦🇺 825 81 120ms 14 Mar 2022 554th MeWhenI 🇻🇦 825 81 120ms 15 Nov 2022 556th AGoyet 822 60 14ms 29 Jun 2022 556th betaveros 822 60 20ms 31 Dec 2022 556th AlexanderFair 822 60 11ms 23 Jun 2023 556th Andriamanitra 🇫🇮 822 60 13ms 20 Jul 2023 556th dranjohn 822 60 51ms 15 Sep 2023 First Prev 481–560 of 2,018 Next Last