Fibonacci in C in chars. Cheevos Holes Recent Holes Langs Medals Misc 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 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 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 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 Calendar Connect Four CSS Colors (Inverse) CSS Grid Ellipse Perimeters Flags Floyd-Steinberg Dithering Gray Code Decoder Gray Code Encoder Hexagonal Spiral Highly Composite Numbers Minesweeper NFA Simulator Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Turtle Tutorial All Languages ><> Assembly AWK Bash BASIC Berry brainfuck C C# C++ Civet Clojure COBOL Coconut Common Lisp Crystal D Dart Elixir 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 Arturo Befunge BQN CJam CoffeeScript Egel Erlang 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 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 Arturo Befunge BQN CJam CoffeeScript Egel Erlang 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 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 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 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 Calendar Connect Four CSS Colors (Inverse) CSS Grid Ellipse Perimeters Flags Floyd-Steinberg Dithering Gray Code Decoder Gray Code Encoder Hexagonal Spiral Highly Composite Numbers Minesweeper NFA Simulator Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Turtle Tutorial # Golfer Points Chars Time Submitted 224th mohakkhowal 849 53 2ms 30 May 2021 224th puyuliao 849 53 1ms 26 Jul 2021 224th Bubbler-4 849 53 2ms 3 Nov 2021 224th c0d3-4-F00d 🇩🇪 849 53 6ms 6 Jan 2022 224th Gosefu 849 53 2ms 13 Jul 2022 224th raphaelimahorn 849 53 1ms 3 Oct 2022 224th namcartoon06 849 53 2ms 30 Jun 2023 224th Szum123321 🇵🇱 849 53 2ms 25 Nov 2023 224th funnyboy-roks 849 53 2ms 14 Jun 2024 224th Mychecksdead 849 53 2ms 25 Jul 2024 224th NickTheEASDude 🇺🇸 849 53 2ms 29 Aug 2024 224th snyderek 🇺🇸 849 53 2ms 20 Jan 2025 224th ReterikHub 849 53 2ms 24 Apr 2025 224th camren-m 849 53 2ms 23 May 2025 224th arvidjonasson 849 53 1ms 7 Jun 2025 224th VeryHolyCheeeese 🇫🇮 849 53 2ms 25 Jun 2025 242nd rqberry 833 54 2ms 8 Mar 2023 242nd kyokucyou 🇩🇪 833 54 2ms 13 Mar 2023 242nd nishantc1527 833 54 2ms 5 Apr 2023 242nd Garklein 🇨🇦 833 54 2ms 23 Oct 2023 242nd LHLaurini 🇧🇷 833 54 1ms 30 Jun 2024 242nd Stockoh 🇫🇷 833 54 2ms 4 Nov 2024 242nd heanyang1 833 54 2ms 22 Apr 2025 242nd myirci 833 54 2ms 15 Jun 2025 242nd blaztoma 🇱🇹 833 54 2ms 17 Aug 2025 242nd Apataras 833 54 2ms 2 Sep 2025 252nd rambox11 818 55 2ms 12 Mar 2019 252nd AkashTandon167 818 55 2ms 25 Sep 2019 252nd AasiApina 818 55 2ms 28 Jan 2020 252nd minarjos 818 55 2ms 12 Jan 2021 252nd rak1507 🇬🇧 818 55 1ms 1 Feb 2021 252nd boxjelly 818 55 2ms 15 Feb 2021 252nd ktiy 818 55 2ms 19 Apr 2021 252nd blasio99 818 55 2ms 2 Nov 2021 252nd rick-gnous 818 55 3ms 5 Nov 2021 252nd LorenzoDeGaspari 818 55 1ms 20 Jun 2022 252nd AnnoyedArt1256 818 55 2ms 19 Aug 2022 252nd ndren 818 55 2ms 6 Aug 2023 252nd triedel42 818 55 5ms 15 May 2024 252nd prestosilver 🇺🇸 818 55 2ms 18 Sep 2025 266th alexjlaberge 804 56 2ms 8 Mar 2019 266th serenac26 804 56 2ms 2 May 2019 266th shuding 804 56 2ms 12 May 2020 266th ytaki0801 🇯🇵 804 56 2ms 19 Jun 2021 266th jgbaldwinbrown 804 56 1ms 2 Jul 2021 266th ACMichels 804 56 2ms 13 Aug 2021 266th LordAzyks 🇫🇷 804 56 2ms 30 Jun 2022 266th MCausc78 🇺🇦 804 56 2ms 5 Jan 2023 266th aevykt 804 56 2ms 29 Oct 2023 266th DevinJFarmer 804 56 2ms 29 Oct 2023 266th ashtraypettingzoo 🇺🇸 804 56 2ms 19 Mar 2024 266th 2022dyx 804 56 2ms 19 Jul 2024 266th madeforlosers 804 56 3ms 22 Nov 2024 266th desecaw13 804 56 2ms 24 Jan 2025 266th Emutis 🇱🇹 804 56 1ms 16 Aug 2025 266th ApoChagi 804 56 28 hours ago 282nd ahenningsen 789 57 2ms 5 May 2019 282nd ieeemma 789 57 2ms 30 Apr 2020 282nd agrukuki 789 57 2ms 20 Sep 2020 282nd ngocbd 🇻🇳 789 57 2ms 25 Sep 2020 282nd iznax 789 57 2ms 16 Oct 2020 282nd b-paul 789 57 2ms 25 Dec 2020 282nd TheHammerBro 789 57 2ms 30 Apr 2021 282nd shibacho 🇯🇵 789 57 2ms 18 Mar 2022 282nd menezesd 789 57 2ms 1 Dec 2022 282nd Ripick 789 57 2ms 30 Apr 2023 282nd imma-Spring 789 57 2ms 2 Nov 2023 282nd rsgray 789 57 2ms 29 Dec 2023 282nd loganmacdougall 🇨🇦 789 57 1ms 19 Jan 2024 282nd jbjd 789 57 2ms 24 Feb 2024 282nd Jigglypuffed 789 57 2ms 15 Jul 2025 282nd KAKISKA-code 🇫🇮 789 57 2ms 24 Sep 2025 282nd solisolu 789 57 2ms 4 days ago 282nd Mabeloid 🇳🇴 789 57 2ms 2 days ago 300th MadMax129 776 58 1ms 25 Dec 2019 First Prev 226–300 of 559 Next Last