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 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 Minesweeper 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 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 Apéry’s Constant Binary Lambda Calculus Calendar Connect Four Continued Fractions Crossword CSS Colors (Inverse) CSS Grid Ellipse Perimeters Flags Floyd-Steinberg Dithering Gray Code Decoder Gray Code Encoder Hexagonal Spiral Highly Composite Numbers Multitap Input NFA Simulator Numbrix Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Taxicab Numbers Turtle Tutorial All Languages ><> 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 ALGOL 68 APL Arturo Befunge BQN CJam CoffeeScript Egel 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 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 ALGOL 68 APL Arturo Befunge BQN CJam CoffeeScript Egel 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 Minesweeper 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 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 Apéry’s Constant Binary Lambda Calculus Calendar Connect Four Continued Fractions Crossword CSS Colors (Inverse) CSS Grid Ellipse Perimeters Flags Floyd-Steinberg Dithering Gray Code Decoder Gray Code Encoder Hexagonal Spiral Highly Composite Numbers Multitap Input NFA Simulator Numbrix Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Taxicab Numbers Turtle Tutorial # Golfer Points Chars Time Submitted 149th doberan 758 33 32ms 2 Nov 2020 149th Secozzi 758 33 31ms 3 Nov 2020 149th ls-samer-abuthaher 758 33 32ms 7 Oct 2022 149th desecaw13 758 33 32ms 25 Jan 2025 155th nlc 735 34 32ms 11 Apr 2018 155th caerbannogwhite 735 34 31ms 14 Apr 2018 155th ajc2 735 34 33ms 1 May 2018 155th anishghosh103 735 34 32ms 15 Mar 2020 155th theLobsterRevolution 735 34 33ms 30 Dec 2020 155th raphaelimahorn 735 34 31ms 2 Sep 2021 155th lilyyy411 735 34 31ms 10 Sep 2021 155th bac0id 735 34 35ms 18 Oct 2021 155th AIn0n 735 34 33ms 1 Dec 2021 155th MichaelMBradley 🇨🇦 735 34 32ms 21 Mar 2022 155th oceko 735 34 32ms 26 Nov 2022 155th nstearns96 🇬🇧 735 34 32ms 15 Dec 2022 155th CheeseCake628 🇳🇴 735 34 33ms 15 Feb 2023 155th epic-programmer-guy 735 34 32ms 15 Dec 2023 155th stellartux 735 34 32ms 24 Dec 2023 155th hellopatrick 735 34 33ms 26 Dec 2023 155th Lv0Sys 🇵🇱 735 34 34ms 31 May 2025 155th albanian-laundromat 735 34 34ms 2 Oct 2025 155th Andrey2001 735 34 36ms 19 days ago 174th JKHiggins 714 35 32ms 27 Jun 2019 174th jetpks 714 35 32ms 27 Jun 2019 174th idoschor 714 35 32ms 30 Nov 2020 174th bbakersmith 714 35 31ms 30 Jul 2021 174th FnControlOption 714 35 34ms 21 Aug 2022 174th cefqrn 714 35 35ms 26 May 2024 174th madeforlosers 714 35 32ms 22 Nov 2024 181st Mir0ff944 694 36 32ms 24 Oct 2019 182nd iamsolarpowered 676 37 33ms 15 Dec 2017 182nd Boostik 676 37 31ms 7 Jan 2018 182nd robymus 676 37 32ms 17 Sep 2018 182nd boxjelly 676 37 31ms 9 Feb 2021 182nd 5quiwyrm 676 37 31ms 31 Aug 2022 182nd truisseaux 676 37 35ms 4 Sep 2024 182nd edsrzf 🇳🇿 676 37 32ms 13 Sep 2024 189th stevehodges 641 39 33ms 8 Nov 2017 189th JeremyC-za 641 39 32ms 9 Nov 2017 189th angetheo 641 39 32ms 19 Jan 2018 189th sacthedev 641 39 32ms 3 Apr 2018 189th okkun-oreo 641 39 32ms 2 Nov 2020 189th TheRealOhead 🇺🇸 641 39 32ms 24 Nov 2022 189th madex 🇩🇪 641 39 32ms 20 Jul 2024 189th Maximizer02 641 39 33ms 17 Sep 2025 197th yokasuretsu 625 40 32ms 16 Apr 2018 197th atsushiootani 625 40 31ms 7 Aug 2018 197th esmg1 625 40 33ms 22 Aug 2018 197th MichalMarsalek 🇨🇿 625 40 32ms 2 Sep 2022 197th Heathcorp 🇦🇺 625 40 32ms 26 Nov 2022 197th nortonbatista 625 40 33ms 31 Oct 2023 203rd JRaspass 🇬🇧 610 41 32ms 23 Mar 2021 203rd MCausc78 🇺🇦 610 41 32ms 29 Dec 2022 203rd lgrandco 610 41 33ms 9 Oct 2024 206th tadd 595 42 33ms 16 Apr 2020 206th Ralac07 🇦🇺 595 42 32ms 17 Jun 2024 206th Just4FunCoder 595 42 32ms 26 Aug 2024 209th evanSpendlove 581 43 33ms 10 Dec 2020 210th biji1 568 44 31ms 26 Apr 2018 210th martica 568 44 32ms 20 May 2018 210th msbranicky 568 44 32ms 7 Sep 2023 213th greghull 556 45 32ms 8 Nov 2017 213th Noxilex 556 45 32ms 20 Mar 2019 213th ashtraypettingzoo 🇺🇸 556 45 31ms 16 Feb 2023 213th hacker112 🇸🇪 556 45 32ms 1 Jul 2024 217th adoxography 543 46 222ms 20 Sep 2018 217th CaAlden 543 46 32ms 10 May 2019 219th snltd 532 47 33ms 18 Aug 2019 219th michaelbaudino 532 47 219ms 18 Oct 2020 219th JesseNoEyes 🇺🇸 532 47 31ms 26 Sep 2024 219th Mikey-Beep 🇬🇧 532 47 32ms 20 Aug 2025 223rd timcustard 521 48 32ms 10 Nov 2017 223rd sech1p 🇵🇱 521 48 31ms 30 Dec 2020 223rd martinnorling 🇸🇪 521 48 31ms 6 Feb 2022 First Prev 151–225 of 272 Next Last