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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 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 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 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 Taxicab Numbers Turtle Tutorial # Golfer Points Chars Time Submitted 301st prplz 🇦🇺 890 67 408ms 21 Nov 2021 301st DialFrost 🇸🇬 890 67 451ms 7 Nov 2025 303rd zacjl 890 70 8ms 11 Mar 2026 304th GrayJoKing 🇦🇺 890 74 17ms 12 Feb 2023 305th Steffan153 🇫🇮 889 42 109ms 8 days ago 306th Shanethegamer 🇺🇸 889 72 1,598ms 19 Jan 2025 307th inventshah 889 74 9ms 19 Sep 2022 308th Kacarott 🇦🇺 888 70 60ms 9 Dec 2025 308th GrayJoKing 🇦🇺 888 70 62ms 9 Dec 2025 310th GrayJoKing 🇦🇺 887 59 12ms 8 Aug 2023 311th emplv 🇱🇻 887 97 26ms 27 Jul 2023 312th lukegustafson 🇺🇸 886 48 148ms 17 Jun 2025 313th nwellnhof 🇩🇪 886 60 2ms 13 Jul 2022 313th emplv 🇱🇻 886 60 2ms 28 Jul 2023 315th GrayJoKing 🇦🇺 886 69 1ms 9 Apr 2022 316th primo-ppcg 🇹🇭 886 81 39ms 2 May 2025 317th DialFrost 🇸🇬 886 97 408ms 7 Nov 2025 318th o0lit3 🇺🇸 885 42 3ms 13 Jun 2022 318th DaCuteRaccoon 885 42 4ms 9 Dec 2022 318th DialFrost 🇸🇬 885 42 4ms 1 Feb 2023 318th MeWhenI 🇻🇦 885 42 3ms 16 Apr 2023 318th nwellnhof 🇩🇪 885 42 3ms 29 May 2023 318th xsot 🇸🇬 885 42 4ms 27 Jun 2025 318th blaztoma 🇱🇹 885 42 3ms 12 Jan 2026 325th GrayJoKing 🇦🇺 884 74 96ms 6 Jun 2023 325th Steffan153 🇫🇮 884 74 112ms 18 Aug 2024 327th ovs-code 🇩🇪 883 53 9ms 30 Oct 2024 328th DialFrost 🇸🇬 883 74 116ms 28 Apr 2025 329th razetime 882 17 2ms 12 Jan 2022 330th sisyphus-ppcg 🇦🇺 882 45 6ms 17 Jan 2021 330th Lydxn 🇨🇦 882 45 5ms 17 Jan 2021 330th emplv 🇱🇻 882 45 5ms 17 Jan 2021 330th GrayJoKing 🇦🇺 882 45 6ms 21 Sep 2021 330th DaCuteRaccoon 882 45 6ms 9 Dec 2022 330th DialFrost 🇸🇬 882 45 5ms 1 Feb 2023 330th janbehrens 🇩🇪 882 45 6ms 16 May 2023 337th GrayJoKing 🇦🇺 882 63 7ms 31 Jan 2025 338th JayXon 🇺🇸 882 73 111ms 15 Oct 2022 338th Steffan153 🇫🇮 882 73 112ms 7 Dec 2022 338th sean-niemann 🇺🇸 882 73 110ms 20 May 2024 341st lynn 881 25 34ms 11 Apr 2021 341st GrayJoKing 🇦🇺 881 25 33ms 15 Feb 2022 341st jared-hughes 881 25 33ms 21 Apr 2022 341st rak1507 🇬🇧 881 25 33ms 28 Jan 2023 341st bstrat 881 25 34ms 15 Jul 2024 346th DialFrost 🇸🇬 881 52 216ms 7 Jan 2024 346th Steffan153 🇫🇮 881 52 217ms 26 Feb 2024 346th sean-niemann 🇺🇸 881 52 204ms 27 Jun 2025 349th SirBogman 🇺🇸 880 21 3ms 30 Sep 2022 350th tomtheisen 🇺🇸 880 53 10ms 18 Jan 2021 350th prplz 🇦🇺 880 53 10ms 24 Jan 2021 350th jakzo 880 53 10ms 5 Sep 2021 350th ovs-code 🇩🇪 880 53 10ms 5 Oct 2023 350th dokutan 880 53 15ms 18 Jul 2025 355th schachmattmatt 880 56 12ms 18 Aug 2021 355th MeWhenI 🇻🇦 880 56 32ms 22 Oct 2021 355th Irratix 🇳🇱 880 56 12ms 19 Apr 2022 355th tri1212 🇻🇳 880 56 11ms 18 Jul 2022 355th fredrik-bakke 🇳🇴 880 56 12ms 29 Sep 2022 355th neel11235813 880 56 31ms 21 Dec 2022 355th sisyphus-ppcg 🇦🇺 880 56 28ms 23 Mar 2023 355th elgan65536 🇺🇸 880 56 13ms 31 Mar 2024 355th HETHAT 🇩🇿 880 56 12ms 12 Apr 2024 355th wh3n3v3r 🇨🇿 880 56 12ms 12 Nov 2024 355th Seek64 🇩🇪 880 56 25ms 9 Mar 2026 366th Steffan153 🇫🇮 880 94 49ms 18 Jan 2023 367th namelessiw 879 76 528ms 2 Oct 2025 367th Yewzir 🇧🇪 879 76 498ms 2 Oct 2025 369th Steffan153 🇫🇮 879 81 59ms 23 Mar 2023 369th sean-niemann 🇺🇸 879 81 61ms 23 Sep 2023 371st m-tkach 🇺🇦 879 107 17ms 17 May 2022 372nd GrayJoKing 🇦🇺 878 27 57ms 2 Aug 2022 373rd zacjl 878 72 40ms 13 Feb 2025 374th Steffan153 🇫🇮 878 75 5ms 13 days ago 375th primo-ppcg 🇹🇭 878 78 4ms 2 May 2023 376th saito-ta 🇯🇵 877 55 3ms 26 May 2022 376th nwellnhof 🇩🇪 877 55 4ms 13 May 2023 378th Irratix 🇳🇱 877 68 404ms 13 Dec 2021 378th namelessiw 877 68 468ms 18 Jul 2025 380th GrayJoKing 🇦🇺 877 73 38ms 27 Jun 2022 380th primo-ppcg 🇹🇭 877 73 38ms 28 Jun 2022 382nd emgordon154 877 75 3ms 4 days ago 383rd emplv 🇱🇻 877 98 343ms 18 Jan 2022 383rd stefangimmillaro 877 98 304ms 21 Jun 2023 385th MeWhenI 🇻🇦 876 76 14ms 18 Jan 2026 386th stefangimmillaro 875 82 39ms 26 Apr 2025 387th m-tkach 🇺🇦 874 55 388ms 20 Jan 2024 387th neel11235813 874 55 463ms 29 Mar 2024 389th primo-ppcg 🇹🇭 874 57 151ms 1 May 2023 390th jared-hughes 874 126 15ms 7 Jul 2024 391st DialFrost 🇸🇬 870 79 463ms 7 Nov 2025 392nd ovs-code 🇩🇪 869 43 109ms 21 Dec 2022 392nd snoozingnewt 🇨🇦 869 43 112ms 8 days ago 394th stefangimmillaro 868 79 99ms 21 Jun 2023 395th Irratix 🇳🇱 868 82 64ms 18 Dec 2022 396th JayXon 🇺🇸 866 131 1,687ms 14 days ago 397th Shanethegamer 🇺🇸 865 53 1,372ms 23 May 2021 397th MeWhenI 🇻🇦 865 53 1,549ms 16 Mar 2022 399th primo-ppcg 🇹🇭 865 57 11ms 18 Jan 2021 399th prplz 🇦🇺 865 57 14ms 21 Jan 2021 First Prev 301–400 of 2,009 Next Last