Emirp Numbers 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 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 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 1st primo-ppcg 🇹🇭 1,000 41 34ms 3 Jan 2020 1st Lydxn 🇨🇦 1,000 41 45ms 12 Mar 2022 3rd JayXon 🇺🇸 953 43 34ms 15 May 2021 4th stefangimmillaro 891 46 34ms 22 Aug 2023 5th janlelis 854 48 35ms 25 Jan 2021 5th Steffan153 🇫🇮 854 48 32ms 18 Feb 2023 5th pardouin 🇫🇷 854 48 53ms 19 Aug 2025 5th radarek 🇵🇱 854 48 35ms 11 Sep 2025 5th sean-niemann 🇺🇸 854 48 43ms 12 Oct 2025 10th nwellnhof 🇩🇪 837 49 35ms 30 Dec 2021 11th SirBogman 🇺🇸 788 52 38ms 3 Dec 2019 11th prplz 🇦🇺 788 52 34ms 3 Dec 2019 11th MeWhenI 🇻🇦 788 52 34ms 26 Oct 2021 14th anter69 🇭🇺 774 53 41ms 8 Feb 2023 14th fuzzylojik-golf 🇺🇸 774 53 40ms 6 Jul 2025 16th GrayJoKing 🇦🇺 759 54 37ms 24 Nov 2021 16th emgordon154 759 54 37ms 26 Jul 2024 18th sisyphus-ppcg 🇦🇺 745 55 33ms 15 Jun 2021 18th Yewzir 🇧🇪 745 55 42ms 7 Feb 2024 20th lynn 719 57 38ms 25 May 2022 20th DialFrost 🇸🇬 719 57 35ms 26 Dec 2024 22nd olivermrose 🇺🇸 683 60 39ms 31 Oct 2021 23rd eldritchconundrum 672 61 33ms 31 Oct 2022 23rd dokutan 672 61 30ms 14 Apr 2024 25th TFeld00 🇩🇰 661 62 32ms 26 Jun 2019 25th snoozingnewt 🇨🇦 661 62 31ms 6 days ago 27th n1LS 651 63 34ms 22 Oct 2019 27th orthoplex 🇨🇽 651 63 35ms 31 Mar 2022 27th jared-hughes 651 63 34ms 12 Sep 2022 27th ovs-code 🇩🇪 651 63 34ms 22 Feb 2025 27th KatieLG 🇬🇧 651 63 38ms 2 Oct 2025 32nd proton 🇩🇪 641 64 34ms 10 Jun 2020 33rd tatzyr 🇯🇵 631 65 40ms 5 Dec 2024 34th Shanethegamer 🇺🇸 612 67 39ms 11 May 2021 34th Irratix 🇳🇱 612 67 37ms 4 Mar 2022 36th acornellier 603 68 34ms 11 Dec 2018 37th handisb 594 69 38ms 25 Oct 2019 37th annaproxy 594 69 35ms 27 Aug 2022 39th Matter1024 🇮🇳 569 72 33ms 14 hours ago 40th Natanaelel 🇸🇪 554 74 39ms 12 Sep 2021 40th Andriamanitra 🇫🇮 554 74 38ms 29 Oct 2022 40th jbbarth 🇫🇷 554 74 41ms 5 Nov 2022 40th error256 554 74 44ms 19 May 2024 44th vonagam 539 76 43ms 8 Nov 2017 44th hrrs01 539 76 39ms 23 Feb 2022 44th 4hg 🇺🇸 539 76 41ms 12 Jul 2022 44th OhmNomNom 539 76 39ms 8 Oct 2022 44th aaronze 🇦🇺 539 76 40ms 21 Sep 2023 44th blaztoma 🇱🇹 539 76 36ms 11 Oct 2025 44th Lv0Sys 🇵🇱 539 76 38ms 7 days ago 44th lacrosse 539 76 38ms 6 days ago 52nd hugolgst 532 77 40ms 15 Jun 2019 52nd reireias 532 77 39ms 30 Jul 2019 52nd Haksell 🇦🇶 532 77 40ms 22 Feb 2023 52nd LostSyntax21 🇬🇧 532 77 39ms 25 Aug 2024 56th greghull 526 78 41ms 8 Nov 2017 56th tadd 526 78 36ms 16 Apr 2020 56th hiddicop 🇸🇪 526 78 40ms 31 Jan 2021 56th schachmattmatt 526 78 36ms 26 Sep 2021 56th olleicua 🇺🇸 526 78 41ms 14 Jan 2024 61st Mir0ff944 519 79 42ms 17 Oct 2019 62nd Waffle3z 513 80 40ms 12 Oct 2020 62nd ndimov 513 80 40ms 17 Nov 2020 62nd meenie 513 80 48ms 16 Feb 2021 65th sapphyrus 506 81 40ms 18 Feb 2020 65th SephQ 506 81 37ms 9 Feb 2021 67th stevehodges 500 82 37ms 9 Nov 2017 67th graft 500 82 40ms 11 Mar 2018 67th adoxography 500 82 38ms 22 Jul 2018 67th sk- 500 82 37ms 12 Sep 2019 67th mogron 500 82 41ms 13 Dec 2019 67th aksyristos 500 82 35ms 26 Jan 2023 73rd tsundokul 494 83 41ms 6 Nov 2018 74th csharpython 488 84 40ms 6 Sep 2025 75th j55d 482 85 49ms 4 Dec 2017 1–75 of 129 Next Last