Reverse Polish Notation 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 NotationRijndael S-boxRock-paper-scissors-Spock-lizardRoman to ArabicRule 110Seven SegmentSI UnitsSierpiński TriangleSmith NumbersSpelling NumbersStar Wars Opening CrawlSudokuSudoku v2Ten-pin BowlingTime DistanceTongue-twistersUnited StatesVampire NumbersVan Eck SequenceZodiac 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 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 United States Vampire Numbers Van Eck Sequence Zodiac Signs γ λ π τ φ √2 𝑒#GolferLangPointsCharsTime1st Lydxn 🇨🇦Ruby1,0004421 Aug 20222nd sisyphus-ppcg 🇦🇺Ruby9364718 Feb 20223rd ovs-code 🇩🇪Ruby8465214 Feb 20224th akshatj27 🇦🇶Ruby8305314 Feb 20224th MeWhenI 🇻🇦Ruby8305325 Jul 20236th primo-ppcg 🇹🇭Ruby8155414 Feb 20226th radarek 🇵🇱Ruby8155426 Feb 20228th stefangimmillaroRuby7725718 Feb 20228th JayXon 🇺🇸Ruby772571 May 202310th Shanethegamer 🇺🇸Ruby7595813 Feb 202210th janlelisRuby7595823 Feb 202210th SirBogman 🇺🇸Ruby7595810 Jan 202413th shinhRuby7465921 Jun 202214th Steffan153 🇫🇮Ruby7216119 Dec 202214th rniiiRuby7216115 Sep 202314th olleicua 🇺🇸Ruby721616 Jan 202414th anter69 🇭🇺Ruby721612 Apr 202418th nwellnhof 🇩🇪Ruby710624 Jun 202218th KL-LruRuby7106229 Dec 202218th Natanaelel 🇸🇪Ruby710629 Dec 202321st ChiefChippy2Ruby6886412 Feb 202221st GrayJoKing 🇦🇺Ruby6886413 Feb 202223rd xiBread 🇺🇸Ruby6776515 Apr 202224th scpchicken 🇵🇼Ruby6676613 Feb 202225th adoxographyRuby6476820 Mar 202226th KatieLG 🇬🇧Ruby6386912 Feb 202226th jared-hughesRuby6386910 Sep 202228th DialFrost 🇸🇬Ruby5378211 Dec 202229th annaproxyRuby4948914 Sep 202330th aksyristosRuby489908 Feb 202331st rucin93 🇵🇱Ruby42310413 Feb 202232nd truisseauxRuby13033812 Apr 202433rd KatieLG-Transpiler 🇬🇧Ruby489095 Jan 20231–33 of 33