Fibonacci in Ruby 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 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 Ellipse Perimeters Flags Floyd-Steinberg Dithering Gray Code Decoder Gray Code Encoder Hexagonal Spiral Highly Composite Numbers NFA Simulator 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 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 ArkScript 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 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 ArkScript 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 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 Ellipse Perimeters Flags Floyd-Steinberg Dithering Gray Code Decoder Gray Code Encoder Hexagonal Spiral Highly Composite Numbers NFA Simulator 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 159th ajc2 735 34 42ms 1 May 2018 159th anishghosh103 735 34 47ms 15 Mar 2020 159th theLobsterRevolution 735 34 60ms 30 Dec 2020 159th lilyyy411 735 34 46ms 10 Sep 2021 159th bac0id 735 34 53ms 18 Oct 2021 159th AIn0n 735 34 50ms 1 Dec 2021 159th MichaelMBradley 🇨🇦 735 34 39ms 21 Mar 2022 159th oceko 735 34 55ms 26 Nov 2022 159th nstearns96 🇬🇧 735 34 56ms 15 Dec 2022 159th CheeseCake628 🇳🇴 735 34 42ms 15 Feb 2023 159th epic-programmer-guy 735 34 41ms 15 Dec 2023 159th stellartux 735 34 46ms 24 Dec 2023 159th hellopatrick 735 34 44ms 26 Dec 2023 159th Lv0Sys 🇵🇱 735 34 35ms 31 May 2025 159th albanian-laundromat 735 34 36ms 2 Oct 2025 159th Andrey2001 735 34 35ms 25 Nov 2025 159th TheZwierzLF 🇵🇱 735 34 39ms 20 Dec 2025 178th JKHiggins 714 35 54ms 27 Jun 2019 178th jetpks 714 35 45ms 27 Jun 2019 178th idoschor 714 35 39ms 30 Nov 2020 178th bbakersmith 714 35 45ms 30 Jul 2021 178th FnControlOption 714 35 41ms 21 Aug 2022 178th cefqrn 714 35 36ms 26 May 2024 178th madeforlosers 714 35 57ms 22 Nov 2024 178th denkyuu1 714 35 33ms 26 days ago 186th Mir0ff944 694 36 47ms 24 Oct 2019 187th iamsolarpowered 676 37 55ms 15 Dec 2017 187th Boostik 676 37 42ms 7 Jan 2018 187th robymus 676 37 40ms 17 Sep 2018 187th boxjelly 676 37 44ms 9 Feb 2021 187th 5quiwyrm 676 37 38ms 31 Aug 2022 187th truisseaux 676 37 39ms 4 Sep 2024 187th edsrzf 🇳🇿 676 37 41ms 13 Sep 2024 194th Pyroan 658 38 36ms 17 Dec 2025 195th stevehodges 641 39 51ms 8 Nov 2017 195th JeremyC-za 641 39 41ms 9 Nov 2017 195th angetheo 641 39 47ms 19 Jan 2018 195th sacthedev 641 39 43ms 3 Apr 2018 195th okkun-oreo 641 39 45ms 2 Nov 2020 195th TheRealOhead 🇺🇸 641 39 51ms 24 Nov 2022 195th madex 🇩🇪 641 39 38ms 20 Jul 2024 195th Maximizer02 641 39 38ms 17 Sep 2025 203rd yokasuretsu 625 40 41ms 16 Apr 2018 203rd atsushiootani 625 40 40ms 7 Aug 2018 203rd esmg1 625 40 38ms 22 Aug 2018 203rd MichalMarsalek 🇨🇿 625 40 40ms 2 Sep 2022 203rd Heathcorp 🇦🇺 625 40 47ms 26 Nov 2022 203rd nortonbatista 625 40 41ms 31 Oct 2023 209th JRaspass 🇬🇧 610 41 37ms 23 Mar 2021 209th MCausc78 🇺🇦 610 41 45ms 29 Dec 2022 209th lgrandco 610 41 39ms 9 Oct 2024 212th tadd 595 42 51ms 16 Apr 2020 212th Ralac07 🇦🇺 595 42 61ms 17 Jun 2024 212th Just4FunCoder 595 42 45ms 26 Aug 2024 215th evanSpendlove 581 43 49ms 10 Dec 2020 216th biji1 568 44 51ms 26 Apr 2018 216th martica 568 44 41ms 20 May 2018 216th msbranicky 568 44 55ms 7 Sep 2023 219th greghull 556 45 49ms 8 Nov 2017 219th Noxilex 556 45 41ms 20 Mar 2019 219th ashtraypettingzoo 🇺🇸 556 45 42ms 16 Feb 2023 219th hacker112 🇸🇪 556 45 43ms 1 Jul 2024 223rd adoxography 543 46 263ms 20 Sep 2018 223rd CaAlden 543 46 52ms 10 May 2019 223rd Ronterox 543 46 41ms 4 Feb 2026 226th snltd 532 47 54ms 18 Aug 2019 226th michaelbaudino 532 47 260ms 18 Oct 2020 226th JesseNoEyes 🇺🇸 532 47 39ms 26 Sep 2024 226th Mikey-Beep 🇬🇧 532 47 37ms 20 Aug 2025 230th timcustard 521 48 47ms 10 Nov 2017 230th sech1p 🇵🇱 521 48 47ms 30 Dec 2020 230th martinnorling 🇸🇪 521 48 49ms 6 Feb 2022 230th purp 521 48 58ms 13 Aug 2022 230th eiburns 521 48 55ms 7 Sep 2023 230th SwordF-Official 🇺🇸 521 48 39ms 2 Jun 2025 236th illegalnumbers 510 49 47ms 27 Jun 2019 236th b-paul 510 49 44ms 25 Dec 2020 238th babcockd 500 50 48ms 19 Dec 2017 239th lbrito1 490 51 229ms 8 Jan 2022 239th azure-blondon 490 51 49ms 10 Jul 2024 First Prev 161–240 of 279 Next Last