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 129th TeodorDyakov 🇧🇬 918 49 1ms 3 Mar 2025 129th 5quiwyrm 918 49 2ms 28 Jul 2025 129th Babafaba 918 49 2ms 3 days ago 129th luuumine 🇫🇷 918 49 2ms 10 hours ago 155th osmith93 900 50 2ms 31 Mar 2019 155th kevokevol 900 50 1ms 28 Apr 2019 155th AaronGarbut 900 50 2ms 1 Aug 2019 155th xenophobia 900 50 2ms 13 Aug 2019 155th bengsparks 900 50 2ms 24 Jan 2020 155th paralysedforce 900 50 4ms 6 Dec 2020 155th gastropner 900 50 2ms 23 Dec 2020 155th SnapDragon64 900 50 2ms 3 Feb 2021 155th guliyevemil1 🇦🇿 900 50 2ms 3 Feb 2021 155th ccecka 900 50 2ms 27 Aug 2021 155th ColesHoles 900 50 2ms 6 Oct 2021 155th tegenton 900 50 2ms 6 Oct 2021 155th Hecate2 900 50 2ms 26 Oct 2021 155th yzkonchain 900 50 2ms 26 Oct 2021 155th thebuilder6 🇺🇸 900 50 2ms 22 Nov 2021 155th simon-biber 900 50 2ms 5 Feb 2022 155th MinorLegato 🇸🇪 900 50 2ms 5 May 2022 155th kskjer 900 50 2ms 12 Jun 2022 155th ColeBardin 900 50 2ms 30 Jul 2022 155th astdefu 900 50 2ms 10 Dec 2022 155th bac0id 900 50 2ms 26 Sep 2023 155th gussy420 900 50 2ms 28 Oct 2023 155th Grrisly 900 50 2ms 3 Nov 2023 155th Noam527 900 50 2ms 4 Apr 2024 155th Emsa001 900 50 2ms 18 May 2024 155th not-a-pokemon 900 50 2ms 14 May 2025 181st atakan-se 882 51 2ms 24 Sep 2020 181st iannisdezwart 🇳🇱 882 51 2ms 1 Feb 2021 181st jeremy-murphy 882 51 2ms 20 Mar 2021 181st Heathcorp 🇦🇺 882 51 2ms 31 Mar 2022 181st warmCabin 882 51 2ms 9 Apr 2022 181st ibexq 882 51 2ms 30 Sep 2022 181st aksyristos 882 51 2ms 17 Jan 2023 181st annoj 882 51 3ms 18 Jan 2023 181st Cloakless 🇬🇧 882 51 2ms 17 Feb 2023 181st olishenton 882 51 2ms 17 Feb 2023 181st Tavress 882 51 2ms 11 May 2023 181st annaproxy 882 51 2ms 18 May 2023 181st funnsam 🇭🇰 882 51 2ms 12 Jun 2023 181st sona-tau 882 51 2ms 26 Aug 2023 181st jacobly0 🇺🇸 882 51 2ms 4 Sep 2023 181st Kesefon 882 51 1ms 24 Oct 2023 181st elgan65536 882 51 2ms 11 Nov 2023 181st ngthanhtrung23 882 51 2ms 7 Mar 2024 181st Xzyaihni 882 51 2ms 26 Apr 2024 181st 0scarB 882 51 2ms 15 Jun 2024 181st hrrs01 882 51 2ms 20 Aug 2024 181st LostSyntax21 🇬🇧 882 51 1ms 10 Sep 2024 181st bo1led-owl 882 51 2ms 14 Sep 2024 181st SirObby 🇫🇮 882 51 2ms 26 Jun 2025 205th clementblaudeau 865 52 2ms 7 Jun 2021 205th yudi-matsuzake 865 52 2ms 11 Aug 2021 205th Bobini1 🇵🇱 865 52 2ms 29 Oct 2021 205th wirewolf010 865 52 2ms 6 Jan 2022 205th CedricGebistorf 865 52 2ms 4 Mar 2022 205th Anonymousellama21 865 52 3ms 8 Jun 2022 205th jupj 🇫🇮 865 52 2ms 12 Aug 2022 205th slerpyyy 🇩🇪 865 52 2ms 21 Oct 2022 205th thatbirdguythatuknownot 865 52 2ms 8 Jan 2023 205th LogicalJoe 865 52 2ms 18 Mar 2023 205th yzhs 🇩🇪 865 52 2ms 23 Jun 2023 205th weliveinhell 🇭🇹 865 52 2ms 28 Dec 2023 205th voytxt 🇨🇿 865 52 1ms 11 Mar 2024 205th HumanoidCPU 865 52 2ms 16 Mar 2024 205th ibrahimhanifceker 865 52 2ms 9 Aug 2024 205th kTheLemon 865 52 2ms 16 Mar 2025 205th Blendi-Goose 865 52 2ms 16 Mar 2025 205th Lv0Sys 🇵🇱 865 52 2ms 30 May 2025 205th trinityy-7 865 52 2ms 7 Aug 2025 224th AbhayAravinda 849 53 2ms 26 Jul 2020 224th neihousaigaai 849 53 2ms 8 May 2021 First Prev 151–225 of 559 Next Last