Fibonacci in Ruby in bytes. 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) Taxicab Numbers 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 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) Taxicab Numbers 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 Turtle Tutorial # Golfer Points Bytes Time Submitted 93rd dokutan 862 29 36ms 5 Jul 2024 93rd HumanoidCPU 862 29 41ms 8 Aug 2024 93rd LostSyntax21 🇬🇧 862 29 37ms 3 Dec 2024 93rd csharpython 862 29 39ms 22 Jul 2025 93rd Babafaba 862 29 40ms 21 Nov 2025 93rd D-MOVE 🇵🇭 862 29 39ms 15 Dec 2025 93rd matricronia 862 29 39ms 31 Jan 2026 93rd madex 🇩🇪 862 29 37ms 19 days ago 109th vonagam 833 30 40ms 8 Nov 2017 109th ConorOBrien-Foxx 833 30 38ms 10 Apr 2018 109th jaredcrystal 🇺🇸 833 30 39ms 22 Sep 2018 109th hugolgst 833 30 40ms 15 May 2019 109th sapphyrus 833 30 40ms 2 Aug 2019 109th sk- 833 30 39ms 12 Sep 2019 109th taw 833 30 38ms 22 Jun 2020 109th jngbsn 833 30 37ms 30 Jun 2020 109th marcin7Cd 833 30 36ms 8 Oct 2020 109th Marin-Kitagawa 833 30 37ms 18 Jul 2021 109th olivermrose 🇺🇸 833 30 40ms 27 Aug 2021 109th CedricGebistorf 833 30 38ms 4 Mar 2022 109th nyoshe 833 30 37ms 10 Oct 2023 109th wowu 833 30 34ms 19 Sep 2024 109th FortuiteMan 🇫🇷 833 30 37ms 28 Nov 2025 109th denkyuu1 833 30 38ms 22 days ago 125th VladYermakov 806 31 39ms 27 Oct 2017 125th j55d 806 31 37ms 5 Dec 2017 125th biinari 806 31 38ms 18 Mar 2018 125th philipper905 806 31 38ms 11 Apr 2018 125th segiddins 806 31 37ms 24 Aug 2018 125th mgergi 806 31 40ms 10 Oct 2018 125th acornellier 806 31 37ms 7 Dec 2018 125th fynnkroeger 806 31 37ms 10 Jan 2021 125th kirbyyourmom 🇬🇧 806 31 38ms 25 Feb 2021 125th souta-1326 806 31 38ms 20 Apr 2021 125th aaronze 🇦🇺 806 31 37ms 30 Apr 2021 125th XorZy 806 31 39ms 29 May 2021 125th kinoute 🇫🇷 806 31 38ms 10 Sep 2021 125th BrenSchaap 806 31 39ms 18 Nov 2021 125th shibacho 🇯🇵 806 31 40ms 18 Mar 2022 125th bryanmytko 806 31 39ms 2 Jul 2022 125th Alex-x90 🇺🇸 806 31 38ms 3 Feb 2023 125th Haksell 🇦🇶 806 31 39ms 22 Feb 2023 125th ejini6969 806 31 38ms 22 Mar 2023 125th mikiymk 806 31 39ms 21 Sep 2023 125th mathisfun271 806 31 36ms 21 Feb 2024 125th qytiz 806 31 40ms 15 Apr 2024 125th kaizer1308 806 31 38ms 11 Mar 2025 125th AetherQuantity 806 31 38ms 21 Oct 2025 125th Thinkr1 806 31 37ms 19 Nov 2025 125th JOrE20 806 31 37ms 30 Dec 2025 125th bitsandbeyond 🇳🇱 806 31 38ms 11 Jan 2026 125th FranklinJiaChen 806 31 34ms 15 Feb 2026 153rd kieraneglin 781 32 38ms 8 Nov 2017 153rd handisb 781 32 38ms 14 Sep 2019 153rd Anonymousellama21 781 32 39ms 18 Feb 2022 153rd raphaelimahorn 781 32 37ms 12 Mar 2026 157th venus-as-a-boy 758 33 39ms 22 Oct 2018 157th KrausRaus 🇺🇸 758 33 38ms 23 Mar 2020 157th doberan 758 33 40ms 2 Nov 2020 157th Secozzi 758 33 38ms 3 Nov 2020 157th ls-samer-abuthaher 758 33 39ms 7 Oct 2022 157th desecaw13 758 33 36ms 25 Jan 2025 163rd nlc 735 34 38ms 11 Apr 2018 163rd caerbannogwhite 735 34 39ms 14 Apr 2018 163rd ajc2 735 34 37ms 1 May 2018 163rd anishghosh103 735 34 39ms 15 Mar 2020 163rd theLobsterRevolution 735 34 38ms 30 Dec 2020 163rd lilyyy411 735 34 38ms 10 Sep 2021 163rd bac0id 735 34 36ms 18 Oct 2021 163rd AIn0n 735 34 38ms 1 Dec 2021 163rd MichaelMBradley 🇨🇦 735 34 40ms 21 Mar 2022 163rd oceko 735 34 37ms 26 Nov 2022 163rd nstearns96 🇬🇧 735 34 37ms 15 Dec 2022 163rd CheeseCake628 🇳🇴 735 34 39ms 15 Feb 2023 163rd epic-programmer-guy 735 34 39ms 15 Dec 2023 163rd stellartux 735 34 38ms 24 Dec 2023 163rd hellopatrick 735 34 39ms 26 Dec 2023 163rd Lv0Sys 🇵🇱 735 34 38ms 31 May 2025 163rd albanian-laundromat 🇺🇸 735 34 37ms 2 Oct 2025 163rd Andrey2001 735 34 38ms 25 Nov 2025 163rd TheZwierzLF 🇵🇱 735 34 38ms 20 Dec 2025 182nd JKHiggins 714 35 38ms 27 Jun 2019 182nd jetpks 714 35 38ms 27 Jun 2019 182nd idoschor 714 35 38ms 30 Nov 2020 182nd bbakersmith 714 35 39ms 30 Jul 2021 182nd FnControlOption 714 35 39ms 21 Aug 2022 182nd cefqrn 714 35 41ms 26 May 2024 182nd madeforlosers 714 35 37ms 22 Nov 2024 189th Mir0ff944 694 36 37ms 24 Oct 2019 190th iamsolarpowered 676 37 39ms 15 Dec 2017 190th Boostik 676 37 38ms 7 Jan 2018 190th robymus 676 37 38ms 17 Sep 2018 190th boxjelly 676 37 38ms 9 Feb 2021 190th 5quiwyrm 676 37 39ms 31 Aug 2022 190th truisseaux 676 37 36ms 4 Sep 2024 190th edsrzf 🇳🇿 676 37 36ms 13 Sep 2024 197th Pyroan 658 38 35ms 17 Dec 2025 198th stevehodges 641 39 39ms 8 Nov 2017 198th JeremyC-za 641 39 38ms 9 Nov 2017 198th angetheo 641 39 38ms 19 Jan 2018 First Prev 101–200 of 282 Next Last