Evil 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 Numbrix 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 Numbrix 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 74th galloj 🇨🇿 684 38 32ms 14 Sep 2022 74th RuyiLi 684 38 31ms 7 Apr 2023 74th tatzyr 🇯🇵 684 38 32ms 8 Jan 2025 74th ejini6969 684 38 32ms 13 Jun 2025 80th n1LS 667 39 32ms 2 Oct 2019 80th ajc2 667 39 33ms 18 Oct 2019 80th AlephSquirrel 667 39 32ms 7 Mar 2023 80th vluyzvg 667 39 32ms 30 Mar 2023 80th LostSyntax21 🇬🇧 667 39 32ms 23 Aug 2024 80th snoozingnewt 🇨🇦 667 39 32ms 14 Sep 2025 86th aydamak 650 40 33ms 15 May 2024 87th robymus 634 41 32ms 17 Sep 2018 88th biinari 619 42 34ms 27 Mar 2018 88th adoxography 619 42 34ms 22 Jul 2018 88th jstanley0 619 42 31ms 12 Dec 2020 88th rucin93 🇵🇱 619 42 32ms 14 May 2025 88th Babafaba 619 42 36ms 15 Oct 2025 93rd ConorOBrien-Foxx 605 43 31ms 10 Apr 2018 93rd nlc 605 43 31ms 11 Apr 2018 93rd reireias 605 43 31ms 30 Jul 2019 93rd handisb 605 43 32ms 14 Sep 2019 93rd mogron 605 43 32ms 13 Dec 2019 93rd dwayneparton 605 43 32ms 8 May 2020 93rd Michaelncallahan 605 43 35ms 8 May 2020 93rd aksyristos 605 43 34ms 31 Jan 2023 101st snltd 591 44 31ms 14 Aug 2019 101st sapphyrus 591 44 32ms 18 Feb 2020 101st meenie 591 44 32ms 1 Jan 2021 101st Pluviolithic 591 44 32ms 17 Oct 2023 101st TheZwierzLF 🇵🇱 591 44 32ms 3 hours ago 106th tom-lord 578 45 31ms 8 Nov 2017 106th clupasq 578 45 32ms 3 Feb 2018 106th biji1 578 45 33ms 26 Apr 2018 106th atsushiootani 578 45 33ms 7 Aug 2018 106th 0xddom 578 45 33ms 18 Dec 2019 106th tadd 578 45 32ms 16 Apr 2020 106th Secozzi 578 45 31ms 21 Oct 2020 106th Luj8n 578 45 31ms 12 Nov 2021 106th badboj40 578 45 34ms 14 Feb 2023 115th rlue 565 46 31ms 8 Nov 2017 115th basuneko 565 46 33ms 8 Nov 2017 115th JeremyC-za 565 46 32ms 10 Nov 2017 115th Yytsi 565 46 33ms 14 Mar 2019 115th TFeld00 🇩🇰 565 46 32ms 6 Jun 2019 115th th0rex 565 46 32ms 10 Jun 2019 115th Mir0ff944 565 46 32ms 23 Oct 2019 115th fynnkroeger 565 46 33ms 17 Oct 2022 123rd kobaltz 553 47 32ms 8 Nov 2017 123rd stevehodges 553 47 31ms 8 Nov 2017 123rd iamsolarpowered 553 47 33ms 15 Dec 2017 123rd babcockd 553 47 34ms 19 Dec 2017 123rd Mikaeel66 553 47 32ms 10 Nov 2019 123rd branch14 553 47 35ms 3 Aug 2020 123rd maths22 🇺🇸 553 47 31ms 9 Dec 2020 123rd HallMatthew314 553 47 33ms 10 Dec 2021 123rd Edjyzod 553 47 32ms 3 Oct 2022 132nd jacobsmith 542 48 32ms 15 Feb 2018 132nd yokasuretsu 542 48 31ms 18 Apr 2018 132nd Marcel-Brouette 542 48 32ms 26 Aug 2018 132nd jamespeilunli 542 48 33ms 1 May 2022 136th alexkurowski 531 49 34ms 8 Nov 2017 136th Boostik 531 49 33ms 7 Jan 2018 136th chris-arsenault 531 49 33ms 2 Feb 2018 136th caerbannogwhite 531 49 35ms 13 Apr 2018 136th jetpks 531 49 33ms 27 Jun 2019 136th boxjelly 531 49 35ms 12 Feb 2021 136th RustemB 🇷🇺 531 49 31ms 4 May 2021 136th schachmattmatt 531 49 31ms 11 Aug 2021 136th Thinkr1 531 49 33ms 26 days ago 145th sstadick 520 50 31ms 24 Jan 2018 145th sacthedev 520 50 31ms 3 Apr 2018 145th tsundokul 520 50 32ms 6 Nov 2018 145th atayarani 520 50 33ms 17 Jan 2019 145th Noxilex 520 50 31ms 20 Mar 2019 145th op-ecoprintq 520 50 31ms 31 Jul 2020 First Prev 76–150 of 184 Next Last