Evil Numbers 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 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 Bytes Time 71st ejini6969 711 38 13 Jun 2025 77th n1LS 692 39 2 Oct 2019 77th ajc2 692 39 18 Oct 2019 77th AlephSquirrel 692 39 7 Mar 2023 77th vluyzvg 692 39 30 Mar 2023 77th LostSyntax21 🇬🇧 692 39 23 Aug 2024 77th Lv0Sys 🇵🇱 692 39 26 May 2025 77th snoozingnewt 🇺🇸 692 39 14 Sep 2025 84th aydamak 675 40 15 May 2024 85th robymus 659 41 17 Sep 2018 86th biinari 643 42 27 Mar 2018 86th adoxography 643 42 22 Jul 2018 86th jstanley0 643 42 12 Dec 2020 86th rucin93 🇵🇱 643 42 14 May 2025 90th ConorOBrien-Foxx 628 43 10 Apr 2018 90th nlc 628 43 11 Apr 2018 90th reireias 628 43 30 Jul 2019 90th handisb 628 43 14 Sep 2019 90th mogron 628 43 13 Dec 2019 90th dwayneparton 628 43 8 May 2020 90th Michaelncallahan 628 43 8 May 2020 90th aksyristos 628 43 31 Jan 2023 90th Babafaba 628 43 5 hours ago 99th snltd 614 44 14 Aug 2019 99th sapphyrus 614 44 18 Feb 2020 99th meenie 614 44 1 Jan 2021 99th Pluviolithic 614 44 17 Oct 2023 103rd tom-lord 600 45 8 Nov 2017 103rd clupasq 600 45 3 Feb 2018 103rd biji1 600 45 26 Apr 2018 103rd atsushiootani 600 45 7 Aug 2018 103rd 0xddom 600 45 18 Dec 2019 103rd tadd 600 45 16 Apr 2020 103rd Secozzi 600 45 21 Oct 2020 103rd Luj8n 600 45 12 Nov 2021 103rd badboj40 600 45 14 Feb 2023 112th rlue 587 46 8 Nov 2017 112th basuneko 587 46 8 Nov 2017 112th JeremyC-za 587 46 10 Nov 2017 112th Yytsi 587 46 14 Mar 2019 112th TFeld00 🇩🇰 587 46 6 Jun 2019 112th th0rex 587 46 10 Jun 2019 112th Mir0ff944 587 46 23 Oct 2019 112th fynnkroeger 587 46 17 Oct 2022 120th kobaltz 574 47 8 Nov 2017 120th stevehodges 574 47 8 Nov 2017 120th iamsolarpowered 574 47 15 Dec 2017 120th babcockd 574 47 19 Dec 2017 120th Mikaeel66 574 47 10 Nov 2019 120th branch14 574 47 3 Aug 2020 120th maths22 🇺🇸 574 47 9 Dec 2020 120th HallMatthew314 574 47 10 Dec 2021 120th Edjyzod 574 47 3 Oct 2022 129th jacobsmith 563 48 15 Feb 2018 129th yokasuretsu 563 48 18 Apr 2018 129th Marcel-Brouette 563 48 26 Aug 2018 129th jamespeilunli 563 48 1 May 2022 133rd alexkurowski 551 49 8 Nov 2017 133rd Boostik 551 49 7 Jan 2018 133rd chris-arsenault 551 49 2 Feb 2018 133rd caerbannogwhite 551 49 13 Apr 2018 133rd jetpks 551 49 27 Jun 2019 133rd boxjelly 551 49 12 Feb 2021 133rd RustemB 🇷🇺 551 49 4 May 2021 133rd schachmattmatt 551 49 11 Aug 2021 141st sstadick 540 50 24 Jan 2018 141st sacthedev 540 50 3 Apr 2018 141st tsundokul 540 50 6 Nov 2018 141st atayarani 540 50 17 Jan 2019 141st Noxilex 540 50 20 Mar 2019 141st op-ecoprintq 540 50 31 Jul 2020 141st eggplants 🇯🇵 540 50 26 Nov 2020 148th san-nat 529 51 12 Dec 2020 148th frnco 529 51 2 Jun 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