Happy Numbers in Ruby in chars.Cheevos Holes Recent Holes Langs Medals Misc All Holes12 Days of Christmas24 Game99 Bottles of BeerAbundant NumbersAbundant Numbers (Long)Arabic to RomanArithmetic NumbersArrowsAscending PrimesASCII TablebrainfuckCatalan NumbersCatalan’s ConstantChristmas TreesCollatzCSS ColorsCubesDay of WeekDFA SimulatorDiamondsDivisorsEmirp NumbersEmirp Numbers (Long)EmojifyEvil NumbersEvil Numbers (Long)Factorial FactorisationFarey SequenceFibonacciFizz BuzzFoo Fizz Buzz BarForsyth–Edwards NotationFractionsGame of LifeGijswijt’s SequenceHappy NumbersHappy Numbers (Long)HexdumpIntersectionInventory SequenceISBNJacobi SymbolKolakoski ConstantKolakoski SequenceLeap YearsLevenshtein DistanceLeyland Numbersln 2Look and SayLucky NumbersLucky TicketsMahjongMazeMedal TallyMorse DecoderMorse EncoderMusical ChordsN QueensNiven NumbersNiven Numbers (Long)Number SpiralOdious NumbersOdious Numbers (Long)Ordinal NumbersPangram GrepPascal’s TrianglePernicious NumbersPernicious Numbers (Long)PokerPrime NumbersPrime Numbers (Long)Proximity GridQR DecoderQuineRecamánRepeating DecimalsReverse Polish NotationReversiRijndael S-boxRock-paper-scissors-Spock-lizardRoman to ArabicRule 110Seven SegmentSI UnitsSierpiński TriangleSmith NumbersSpelling NumbersStar Wars Opening CrawlSudokuSudoku v2Ten-pin BowlingTime DistanceTongue-twistersTranspose SentenceUnited StatesVampire NumbersVan Eck SequenceZeckendorf RepresentationZodiac Signsγλπτφ√2𝑒 All Languages><>AssemblyAWKBashBASICBerrybrainfuckCC#C++ClojureCOBOLCoconutCrystalDDartElixirF#FactorForthFortranGoGolfScriptHaskellHexagonyJJanetJavaJavaScriptJuliaKLispLuaNimOCamlPascalPerlPHPPowerShellPrologPythonRRakuRockstarRubyRustsedSQLSwiftTclTeXVVimLWrenZig Bytes CharsScoringBytes CharsLanguageAll ><> Assembly AWK Bash BASIC Berry brainfuck C C# C++ Clojure COBOL Coconut Crystal D Dart Elixir F# Factor Forth Fortran Go GolfScript Haskell Hexagony J Janet Java JavaScript Julia K Lisp Lua Nim OCaml Pascal Perl PHP PowerShell Prolog Python R Raku Rockstar Ruby Rust sed SQL Swift Tcl TeX V VimL Wren ZigHoleAll 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 brainfuck 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 Intersection Inventory Sequence ISBN Jacobi Symbol Kolakoski Constant Kolakoski Sequence Leap Years Levenshtein Distance Leyland Numbers ln 2 Look and Say Lucky Numbers Lucky Tickets Mahjong 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 Pangram Grep Pascal’s Triangle Pernicious Numbers Pernicious Numbers (Long) Poker 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 Rule 110 Seven Segment SI Units Sierpiński Triangle Smith Numbers Spelling Numbers Star Wars Opening Crawl Sudoku Sudoku v2 Ten-pin Bowling Time Distance Tongue-twisters Transpose Sentence United States Vampire Numbers Van Eck Sequence Zeckendorf Representation Zodiac Signs γ λ π τ φ √2 𝑒#GolferLangPointsCharsTime1st primo-ppcg 🇹🇭Ruby1,000303 Jan 20201st JayXon 🇺🇸Ruby1,0003020 Feb 20211st sisyphus-ppcg 🇦🇺Ruby1,000303 Jul 20211st Lydxn 🇨🇦Ruby1,0003017 Aug 20211st Steffan153 🇫🇮Ruby1,0003025 Apr 20231st stefangimmillaroRuby1,0003021 Aug 20231st MeWhenI 🇻🇦Ruby1,0003022 Aug 20238th prplz 🇦🇺Ruby968313 Jan 20208th m-tkach 🇺🇦Ruby9683123 Feb 202310th alo-ginRuby9383219 Oct 201811th janlelisRuby6674522 Jan 202112th SirBogman 🇺🇸Ruby612494 Jan 202012th GrayJoKing 🇦🇺Ruby6124924 Mar 202112th nwellnhof 🇩🇪Ruby612496 Nov 202112th radarek 🇵🇱Ruby6124910 Mar 202212th lynnRuby6124925 May 202212th sean-niemann 🇺🇸Ruby612492 Jun 202212th anter69 🇭🇺Ruby6124914 Jan 202312th Shanethegamer 🇺🇸Ruby6124929 Mar 202312th xsot 🇸🇬Ruby6124914 Oct 202321st hrrs01Ruby5565414 Apr 202021st jaredcrystal 🇺🇸Ruby5565414 Dec 202021st jared-hughesRuby556549 Sep 202221st ovs-code 🇩🇪Ruby556549 May 202325th gilufinRuby5455530 May 202125th Natanaelel 🇸🇪Ruby5455510 May 202327th emgordon154Ruby5265722 Dec 202127th annaproxyRuby5265727 Aug 202227th BREMAUCY 🇫🇷Ruby5265726 Mar 202430th Waffle3zRuby5175820 Jan 202130th SnowballSHRuby517589 Feb 202130th jbbarth 🇫🇷Ruby517588 Oct 202130th AlephSquirrelRuby5175814 Apr 202330th Yewzir 🇧🇪Ruby5175822 Dec 202335th adoxographyRuby5085922 Jul 201835th n1LSRuby5085922 Oct 201935th flavono123Ruby5085919 Dec 201935th rbvizRuby5085929 Mar 202135th OhmNomNomRuby5085913 Oct 202235th FlyingPenguin223Ruby5085918 Oct 202335th dokutanRuby5085914 Apr 202442nd xiBread 🇺🇸Ruby5006019 Sep 202142nd Andriamanitra 🇫🇮Ruby5006020 Jul 202244th robymusRuby4926117 Sep 201844th proton 🇩🇪Ruby4926110 Jun 202046th KatieLG 🇬🇧Ruby4766318 May 202147th hiddicop 🇸🇪Ruby4696426 Jan 202147th Irratix 🇳🇱Ruby469644 Mar 202247th yzhs 🇩🇪Ruby4696420 Jul 202250th pandapawskatRuby462657 Oct 202150th orthoplex 🇨🇽Ruby4626530 Mar 202250th DaCuteRaccoonRuby4626530 Nov 202250th DialFrost 🇸🇬Ruby4626528 Jan 202354th vonagamRuby448678 Nov 201755th acornellierRuby441688 Dec 201856th reireiasRuby4356931 Jul 201956th aksyristosRuby4356931 Jan 202358th aaronze 🇦🇺Ruby4237117 Sep 202358th olleicua 🇺🇸Ruby4237120 Feb 202460th nlcRuby417728 Oct 20181–60 of 93 Next