Evil Numbers in Ruby in bytes. 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 Calendar Card Number Validation Catalan Numbers Catalan’s Constant Christmas Trees Collatz Continued Fractions 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 Gray Code Decoder Gray Code Encoder 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 Multitap Input 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 Alphabetic Numbers Apéry’s Constant Binary Lambda Calculus Connect Four Crossword CSS Colors (Inverse) CSS Grid Ellipse Perimeters Flags Floyd-Steinberg Dithering Hexagonal Spiral Highly Composite Numbers NFA Simulator Numbrix Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Rectangle Fill Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Taxicab Numbers Turtle Tutorial All Languages ><> ALGOL 68 ArkScript 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 APL Arturo Befunge BQN CJam CoffeeScript Egel Fennel Harbour Hare Haxe Hush Hy iogii Knight Lily Luau Odin Picat Qore Racket Rebol Rexx Scala Squirrel Stax Uiua Umka Vala Vyxal Bytes Chars Scoring Bytes Chars Language All ><> ALGOL 68 ArkScript 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 APL Arturo Befunge BQN CJam CoffeeScript Egel Fennel Harbour Hare Haxe Hush Hy iogii Knight Lily 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 Calendar Card Number Validation Catalan Numbers Catalan’s Constant Christmas Trees Collatz Continued Fractions 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 Gray Code Decoder Gray Code Encoder 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 Multitap Input 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 Alphabetic Numbers Apéry’s Constant Binary Lambda Calculus Connect Four Crossword CSS Colors (Inverse) CSS Grid Ellipse Perimeters Flags Floyd-Steinberg Dithering Hexagonal Spiral Highly Composite Numbers NFA Simulator Numbrix Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Rectangle Fill Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Taxicab Numbers Turtle Tutorial # Golfer Points Bytes Time Submitted 1st Lydxn 🇨🇦 1,000 27 37ms 4 Feb 2022 1st radarek 🇵🇱 1,000 27 38ms 25 Mar 2022 1st pardouin 🇫🇷 1,000 27 39ms 2 Sep 2025 4th janlelis 964 28 37ms 5 Jan 2020 4th primo-ppcg 🇹🇭 964 28 39ms 5 Oct 2020 4th JayXon 🇺🇸 964 28 37ms 28 Feb 2021 4th sisyphus-ppcg 🇦🇺 964 28 39ms 10 Jun 2021 4th nwellnhof 🇩🇪 964 28 38ms 1 Nov 2021 4th lynn 964 28 39ms 4 Feb 2022 4th OhmNomNom 964 28 36ms 30 Oct 2022 4th Steffan153 🇫🇮 964 28 35ms 17 Feb 2023 4th Shanethegamer 🇺🇸 964 28 37ms 22 Mar 2023 4th xsot 🇸🇬 964 28 39ms 25 May 2023 4th stefangimmillaro 964 28 37ms 4 Aug 2023 4th MeWhenI 🇻🇦 964 28 36ms 4 Aug 2023 4th Natanaelel 🇸🇪 964 28 37ms 14 Mar 2024 4th ovs-code 🇩🇪 964 28 38ms 22 Apr 2024 4th sean-niemann 🇺🇸 964 28 38ms 27 Dec 2024 4th fuzzylojik-golf 🇺🇸 964 28 38ms 29 Aug 2025 4th JOrE20 964 28 36ms 13 Feb 2026 4th blaztoma 🇱🇹 964 28 60ms 10 days ago 22nd FlyingPenguin223 871 31 39ms 1 Nov 2024 23rd prplz 🇦🇺 844 32 40ms 16 Mar 2020 23rd GrayJoKing 🇦🇺 844 32 36ms 25 Jan 2021 23rd emgordon154 844 32 41ms 21 Sep 2024 26th jaredcrystal 🇺🇸 818 33 38ms 10 Dec 2018 26th yzhs 🇩🇪 818 33 35ms 8 Sep 2020 26th Waffle3z 818 33 37ms 11 Jan 2021 26th razetime 818 33 38ms 25 Jan 2021 26th rak1507 🇬🇧 818 33 37ms 25 Jan 2021 26th rbviz 818 33 38ms 29 Mar 2021 26th 4hg 🇺🇸 818 33 39ms 6 Jul 2022 26th m-tkach 🇺🇦 818 33 38ms 9 May 2023 26th CaedenHarper 🇨🇦 818 33 39ms 28 Aug 2025 35th j55d 794 34 37ms 3 Dec 2017 35th SirBogman 🇺🇸 794 34 38ms 14 Feb 2020 35th janbehrens 🇩🇪 794 34 36ms 24 Mar 2021 35th hugolgst 794 34 39ms 4 Jun 2021 35th anter69 🇭🇺 794 34 37ms 27 Jun 2021 35th Marin-Kitagawa 794 34 38ms 18 Jul 2021 35th olivermrose 🇺🇸 794 34 40ms 27 Aug 2021 35th o0lit3 🇺🇸 794 34 39ms 11 Sep 2021 35th UladzimirSukharukau 794 34 36ms 13 Sep 2021 35th KatieLG 🇬🇧 794 34 45ms 1 Oct 2021 35th akshatj27 🇦🇶 794 34 42ms 11 Jan 2022 35th Irratix 🇳🇱 794 34 37ms 4 Mar 2022 35th orthoplex 🇨🇽 794 34 38ms 1 Apr 2022 35th Mortis66666 794 34 39ms 14 Jul 2022 35th jared-hughes 794 34 38ms 9 Sep 2022 35th Andriamanitra 🇫🇮 794 34 43ms 22 Sep 2022 35th DialFrost 🇸🇬 794 34 41ms 29 Jan 2023 35th Yewzir 🇧🇪 794 34 38ms 17 Nov 2023 35th dokutan 794 34 39ms 17 Jul 2025 35th denkyuu1 794 34 35ms 2 Feb 2026 35th FoxInTheClouds 794 34 38ms 21 Feb 2026 35th madex 🇩🇪 794 34 61ms 16 days ago 57th hrrs01 771 35 36ms 14 Mar 2020 57th proton 🇩🇪 771 35 38ms 9 Jun 2020 57th hiddicop 🇸🇪 771 35 37ms 29 Jan 2021 57th liemvo 🇻🇳 771 35 40ms 16 Apr 2021 57th ls-samer-abuthaher 771 35 39ms 7 Oct 2022 57th muraterogl 🇹🇷 771 35 37ms 31 Dec 2022 57th beirigo 🇧🇷 771 35 40ms 21 Nov 2025 64th vonagam 750 36 36ms 8 Nov 2017 64th sk- 750 36 37ms 12 Sep 2019 64th gilufin 750 36 36ms 23 May 2021 64th daninnm 750 36 38ms 23 Jul 2021 64th jbbarth 🇫🇷 750 36 36ms 21 Aug 2021 64th annaproxy 750 36 40ms 24 Aug 2022 70th jimworm 730 37 36ms 8 Nov 2017 70th acornellier 730 37 41ms 1 Dec 2021 70th pilaf 🇦🇷 730 37 39ms 14 Apr 2022 70th Haksell 🇦🇶 730 37 36ms 22 Feb 2023 70th rniii 730 37 37ms 21 Aug 2023 70th aaronze 🇦🇺 730 37 39ms 17 Sep 2023 70th olleicua 🇺🇸 730 37 38ms 27 Dec 2023 70th Lv0Sys 🇵🇱 730 37 41ms 28 Nov 2025 78th graft 711 38 36ms 11 Mar 2018 78th nexaitch 711 38 36ms 7 Jul 2020 78th galloj 🇨🇿 711 38 36ms 14 Sep 2022 1–80 of 189 Next Last