ISBN in Ruby in chars. 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 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 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 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 Calendar Connect Four CSS Colors (Inverse) CSS Grid Ellipse Perimeters Flags Floyd-Steinberg Dithering Gray Code Decoder Gray Code Encoder Hexagonal Spiral Highly Composite Numbers Minesweeper NFA Simulator Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Turtle Tutorial 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 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 Erlang 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 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 Erlang 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 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 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 Calendar Connect Four CSS Colors (Inverse) CSS Grid Ellipse Perimeters Flags Floyd-Steinberg Dithering Gray Code Decoder Gray Code Encoder Hexagonal Spiral Highly Composite Numbers Minesweeper NFA Simulator Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Turtle Tutorial # Golfer Points Chars Time Submitted 1st Lydxn 🇨🇦 1,000 47 35ms 21 Aug 2022 2nd primo-ppcg 🇹🇭 940 50 36ms 4 May 2022 3rd sisyphus-ppcg 🇦🇺 887 53 54ms 11 Jan 2022 4th JayXon 🇺🇸 855 55 35ms 25 Feb 2022 5th Steffan153 🇫🇮 825 57 65ms 29 Aug 2024 5th pardouin 🇫🇷 825 57 55ms 2 Sep 2025 7th xsot 🇸🇬 810 58 37ms 6 Jul 2025 7th sean-niemann 🇺🇸 810 58 35ms 3 Aug 2025 9th MeWhenI 🇻🇦 797 59 33ms 24 Aug 2022 9th janlelis 797 59 36ms 21 Sep 2024 11th anter69 🇭🇺 783 60 38ms 12 Feb 2024 12th SirBogman 🇺🇸 770 61 33ms 21 May 2022 12th Shanethegamer 🇺🇸 770 61 34ms 27 May 2022 12th canissimia 🇦🇶 770 61 58ms 18 Jul 2022 15th Natanaelel 🇸🇪 758 62 34ms 18 May 2025 16th ovs-code 🇩🇪 746 63 33ms 9 May 2023 16th nwellnhof 🇩🇪 746 63 37ms 18 Jul 2023 16th tatzyr 🇯🇵 746 63 32ms 28 Dec 2024 19th GrayJoKing 🇦🇺 734 64 42ms 10 Feb 2022 19th olivermrose 🇺🇸 734 64 37ms 5 Dec 2022 21st error256 712 66 36ms 8 May 2025 22nd stefangimmillaro 701 67 33ms 26 Dec 2024 23rd akshatj27 🇦🇶 691 68 38ms 10 Jan 2022 23rd Haksell 🇦🇶 691 68 38ms 23 Feb 2023 25th 4hg 🇺🇸 681 69 37ms 30 Nov 2022 25th Andriamanitra 🇫🇮 681 69 46ms 17 Apr 2023 27th DialFrost 🇸🇬 662 71 35ms 26 Dec 2024 28th HumanoidCPU 644 73 37ms 2 Mar 2025 29th Waffle3z 635 74 48ms 12 Jan 2022 29th olleicua 🇺🇸 635 74 36ms 16 Feb 2024 29th emgordon154 635 74 54ms 25 Jun 2024 29th KatieLG 🇬🇧 635 74 33ms 22 days ago 33rd jared-hughes 627 75 38ms 9 Sep 2022 34th jstanley0 610 77 34ms 5 Feb 2022 35th aaronze 🇦🇺 588 80 48ms 21 Sep 2023 36th galloj 🇨🇿 566 83 37ms 9 Sep 2022 37th adoxography 485 97 38ms 20 Jan 2022 37th alexjurkiewicz 🇦🇺 485 97 37ms 7 Jul 2022 39th LostSyntax21 🇬🇧 475 99 44ms 9 Sep 2024 40th madex 🇩🇪 385 122 34ms 16 Jun 2024 41st mosegontar 338 139 33ms 6 Jul 2022 42nd Ralac07 🇦🇺 309 152 36ms 21 Jun 2024 43rd KatieLG-Transpiler 🇬🇧 237 198 35ms 3 Jul 2022 1–43 of 43
