ISBN in Ruby in bytes. Cheevos Holes Recent Holes Langs Medals Misc 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 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 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 PalindromemordnilaP Pangram Grep 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 Rule 110 Seven Segment SI Units Sierpiński Triangle Smith Numbers Spelling Numbers Star Wars Opening Crawl Sudoku Sudoku (Fill-in) 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 Apéry’s Constant CSS Grid Ellipse Perimeters Flags Floyd-Steinberg Dithering Gray Code Decoder Gray Code Encoder Hexagonal Spiral Hilbert Curve Mandelbrot NFA Simulator Odd Polyomino Tiling p-adic Expansion Partition Numbers Placeholder QR Encoder Quadratic Formula Semiprime Numbers Sphenic Numbers Star Wars GPT Trinomial Triangle Turtle All Languages ><> Assembly AWK Bash BASIC Berry brainfuck C C# C++ Civet Clojure COBOL Coconut Common Lisp Crystal D Dart Elixir F# Factor Forth Fortran Go GolfScript Haskell Hexagony J Janet Java JavaScript jq Julia K Kotlin Lua Nim OCaml Pascal Perl PHP PowerShell Prolog Python R Raku Rockstar Rockstar 2 Ruby Rust Scheme sed SQL Swift Tcl TeX V VimL Wren Zig 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 F# Factor Forth Fortran Go GolfScript Haskell Hexagony J Janet Java JavaScript jq Julia K Kotlin Lua Nim OCaml Pascal Perl PHP PowerShell Prolog Python R Raku Rockstar Rockstar 2 Ruby Rust Scheme sed SQL Swift Tcl TeX V VimL Wren Zig 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 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 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 PalindromemordnilaP Pangram Grep 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 Rule 110 Seven Segment SI Units Sierpiński Triangle Smith Numbers Spelling Numbers Star Wars Opening Crawl Sudoku Sudoku (Fill-in) 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 Experimental Hole Apéry’s Constant CSS Grid Ellipse Perimeters Flags Floyd-Steinberg Dithering Gray Code Decoder Gray Code Encoder Hexagonal Spiral Hilbert Curve Mandelbrot NFA Simulator Odd Polyomino Tiling p-adic Expansion Partition Numbers Placeholder QR Encoder Quadratic Formula Semiprime Numbers Sphenic Numbers Star Wars GPT Trinomial Triangle Turtle # Golfer Points Bytes Time 1st Lydxn 🇨🇦 1,000 57 27 Feb 2022 2nd JayXon 🇺🇸 966 59 25 Feb 2022 3rd canissimia 🇦🇶 934 61 18 Jul 2022 4th primo-ppcg 🇹🇭 919 62 11 Jan 2022 4th Steffan153 🇫🇮 919 62 28 Jun 2024 6th ovs-code 🇩🇪 905 63 9 May 2023 6th nwellnhof 🇩🇪 905 63 18 Jul 2023 6th xsot 🇸🇬 905 63 14 Oct 2023 9th sisyphus-ppcg 🇦🇺 891 64 11 Jan 2022 9th GrayJoKing 🇦🇺 891 64 10 Feb 2022 11th MeWhenI 🇻🇦 877 65 7 Dec 2023 12th janlelis 851 67 11 Jan 2022 13th akshatj27 🇦🇶 838 68 10 Jan 2022 13th SirBogman 🇺🇸 838 68 19 May 2022 13th Shanethegamer 🇺🇸 838 68 27 May 2022 13th Natanaelel 🇸🇪 838 68 21 Jun 2022 13th stefangimmillaro 838 68 19 Dec 2022 13th Haksell 🇦🇶 838 68 23 Feb 2023 13th anter69 🇭🇺 838 68 20 Nov 2023 20th 4hg 🇺🇸 826 69 30 Nov 2022 20th Andriamanitra 🇫🇮 826 69 17 Apr 2023 22nd DialFrost 🇸🇬 792 72 20 Nov 2024 23rd Waffle3z 770 74 12 Jan 2022 23rd olleicua 🇺🇸 770 74 16 Feb 2024 23rd emgordon154 770 74 25 Jun 2024 26th jared-hughes 760 75 9 Sep 2022 27th jstanley0 740 77 5 Feb 2022 27th xiBread 🇺🇸 740 77 5 Dec 2022 27th tatzyr 🇯🇵 740 77 27 days ago 30th aaronze 🇦🇺 713 80 21 Sep 2023 31st galloj 🇨🇿 687 83 9 Sep 2022 32nd KatieLG 🇬🇧 613 93 9 Jun 2024 33rd adoxography 588 97 20 Jan 2022 33rd alexjurkiewicz 🇦🇺 588 97 7 Jul 2022 35th NicknamedTwice 🇲🇨 576 99 9 Sep 2024 36th madex 🇩🇪 467 122 16 Jun 2024 37th mosegontar 410 139 6 Jul 2022 38th Ralac07 🇦🇺 375 152 21 Jun 2024 39th KatieLG-Transpiler 🇬🇧 288 198 3 Jul 2022 1–39 of 39