Fibonacci in Ruby in bytes. 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 Bytes Time Submitted 146th desecaw13 758 33 34ms 25 Jan 2025 152nd nlc 735 34 33ms 11 Apr 2018 152nd caerbannogwhite 735 34 34ms 14 Apr 2018 152nd ajc2 735 34 34ms 1 May 2018 152nd anishghosh103 735 34 37ms 15 Mar 2020 152nd theLobsterRevolution 735 34 35ms 30 Dec 2020 152nd raphaelimahorn 735 34 36ms 2 Sep 2021 152nd lilyyy411 735 34 34ms 10 Sep 2021 152nd bac0id 735 34 35ms 18 Oct 2021 152nd AIn0n 735 34 35ms 1 Dec 2021 152nd MichaelMBradley 🇨🇦 735 34 32ms 21 Mar 2022 152nd oceko 735 34 36ms 26 Nov 2022 152nd nstearns96 🇬🇧 735 34 39ms 15 Dec 2022 152nd CheeseCake628 🇳🇴 735 34 35ms 15 Feb 2023 152nd epic-programmer-guy 735 34 34ms 15 Dec 2023 152nd stellartux 735 34 36ms 24 Dec 2023 152nd hellopatrick 735 34 34ms 26 Dec 2023 152nd Lv0Sys 🇵🇱 735 34 39ms 31 May 2025 152nd albanian-laundromat 735 34 35ms 21 days ago 170th JKHiggins 714 35 40ms 27 Jun 2019 170th jetpks 714 35 37ms 27 Jun 2019 170th idoschor 714 35 38ms 30 Nov 2020 170th bbakersmith 714 35 35ms 30 Jul 2021 170th FnControlOption 714 35 39ms 21 Aug 2022 170th cefqrn 714 35 37ms 26 May 2024 170th madeforlosers 714 35 35ms 22 Nov 2024 177th Mir0ff944 694 36 31ms 24 Oct 2019 178th iamsolarpowered 676 37 35ms 15 Dec 2017 178th Boostik 676 37 36ms 7 Jan 2018 178th robymus 676 37 35ms 17 Sep 2018 178th boxjelly 676 37 34ms 9 Feb 2021 178th 5quiwyrm 676 37 35ms 31 Aug 2022 178th truisseaux 676 37 32ms 4 Sep 2024 178th edsrzf 🇳🇿 676 37 35ms 13 Sep 2024 185th stevehodges 641 39 39ms 8 Nov 2017 185th JeremyC-za 641 39 45ms 9 Nov 2017 185th angetheo 641 39 34ms 19 Jan 2018 185th sacthedev 641 39 36ms 3 Apr 2018 185th okkun-oreo 641 39 34ms 2 Nov 2020 185th TheRealOhead 🇺🇸 641 39 35ms 24 Nov 2022 185th madex 🇩🇪 641 39 36ms 20 Jul 2024 185th Maximizer02 641 39 36ms 17 Sep 2025 193rd yokasuretsu 625 40 35ms 16 Apr 2018 193rd atsushiootani 625 40 34ms 7 Aug 2018 193rd esmg1 625 40 35ms 22 Aug 2018 193rd MichalMarsalek 🇨🇿 625 40 34ms 2 Sep 2022 193rd Heathcorp 🇦🇺 625 40 37ms 26 Nov 2022 193rd nortonbatista 625 40 34ms 31 Oct 2023 199th JRaspass 🇬🇧 610 41 36ms 23 Mar 2021 199th MCausc78 🇺🇦 610 41 34ms 29 Dec 2022 199th lgrandco 610 41 35ms 9 Oct 2024 202nd tadd 595 42 45ms 16 Apr 2020 202nd Ralac07 🇦🇺 595 42 42ms 17 Jun 2024 202nd Just4FunCoder 595 42 35ms 26 Aug 2024 205th evanSpendlove 581 43 35ms 10 Dec 2020 206th biji1 568 44 46ms 26 Apr 2018 206th martica 568 44 36ms 20 May 2018 206th msbranicky 568 44 31ms 7 Sep 2023 209th greghull 556 45 43ms 8 Nov 2017 209th Noxilex 556 45 33ms 20 Mar 2019 209th ashtraypettingzoo 🇺🇸 556 45 36ms 16 Feb 2023 209th hacker112 🇸🇪 556 45 48ms 1 Jul 2024 213th adoxography 543 46 246ms 20 Sep 2018 213th CaAlden 543 46 36ms 10 May 2019 215th snltd 532 47 38ms 18 Aug 2019 215th michaelbaudino 532 47 262ms 18 Oct 2020 215th JesseNoEyes 🇺🇸 532 47 34ms 26 Sep 2024 215th Mikey-Beep 🇬🇧 532 47 31ms 20 Aug 2025 219th timcustard 521 48 35ms 10 Nov 2017 219th sech1p 🇵🇱 521 48 35ms 30 Dec 2020 219th martinnorling 🇸🇪 521 48 33ms 6 Feb 2022 219th purp 521 48 35ms 13 Aug 2022 219th eiburns 521 48 35ms 7 Sep 2023 219th SwordF-Official 521 48 43ms 2 Jun 2025 225th illegalnumbers 510 49 36ms 27 Jun 2019 First Prev 151–225 of 267 Next Last