Evil Numbers 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 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 Snake Sphenic Numbers Trinomial Triangle 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 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 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 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 Snake Sphenic Numbers Trinomial Triangle Turtle Tutorial # Golfer Points Chars Time 71st ejini6969 684 38 13 Jun 2025 77th n1LS 667 39 2 Oct 2019 77th ajc2 667 39 18 Oct 2019 77th AlephSquirrel 667 39 7 Mar 2023 77th vluyzvg 667 39 30 Mar 2023 77th LostSyntax21 🇬🇧 667 39 23 Aug 2024 77th Lv0Sys 🇵🇱 667 39 26 May 2025 77th snoozingnewt 🇺🇸 667 39 110 mins ago 84th aydamak 650 40 15 May 2024 85th robymus 634 41 17 Sep 2018 86th biinari 619 42 27 Mar 2018 86th adoxography 619 42 22 Jul 2018 86th jstanley0 619 42 12 Dec 2020 86th rucin93 🇵🇱 619 42 14 May 2025 90th ConorOBrien-Foxx 605 43 10 Apr 2018 90th nlc 605 43 11 Apr 2018 90th reireias 605 43 30 Jul 2019 90th handisb 605 43 14 Sep 2019 90th mogron 605 43 13 Dec 2019 90th dwayneparton 605 43 8 May 2020 90th Michaelncallahan 605 43 8 May 2020 90th aksyristos 605 43 31 Jan 2023 98th snltd 591 44 14 Aug 2019 98th sapphyrus 591 44 18 Feb 2020 98th meenie 591 44 1 Jan 2021 98th Pluviolithic 591 44 17 Oct 2023 102nd tom-lord 578 45 8 Nov 2017 102nd clupasq 578 45 3 Feb 2018 102nd biji1 578 45 26 Apr 2018 102nd atsushiootani 578 45 7 Aug 2018 102nd 0xddom 578 45 18 Dec 2019 102nd tadd 578 45 16 Apr 2020 102nd Secozzi 578 45 21 Oct 2020 102nd Luj8n 578 45 12 Nov 2021 102nd badboj40 578 45 14 Feb 2023 111th rlue 565 46 8 Nov 2017 111th basuneko 565 46 8 Nov 2017 111th JeremyC-za 565 46 10 Nov 2017 111th Yytsi 565 46 14 Mar 2019 111th TFeld00 🇩🇰 565 46 6 Jun 2019 111th th0rex 565 46 10 Jun 2019 111th Mir0ff944 565 46 23 Oct 2019 111th fynnkroeger 565 46 17 Oct 2022 119th kobaltz 553 47 8 Nov 2017 119th stevehodges 553 47 8 Nov 2017 119th iamsolarpowered 553 47 15 Dec 2017 119th babcockd 553 47 19 Dec 2017 119th Mikaeel66 553 47 10 Nov 2019 119th branch14 553 47 3 Aug 2020 119th maths22 🇺🇸 553 47 9 Dec 2020 119th HallMatthew314 553 47 10 Dec 2021 119th Edjyzod 553 47 3 Oct 2022 128th jacobsmith 542 48 15 Feb 2018 128th yokasuretsu 542 48 18 Apr 2018 128th Marcel-Brouette 542 48 26 Aug 2018 128th jamespeilunli 542 48 1 May 2022 132nd alexkurowski 531 49 8 Nov 2017 132nd Boostik 531 49 7 Jan 2018 132nd chris-arsenault 531 49 2 Feb 2018 132nd caerbannogwhite 531 49 13 Apr 2018 132nd jetpks 531 49 27 Jun 2019 132nd boxjelly 531 49 12 Feb 2021 132nd RustemB 🇷🇺 531 49 4 May 2021 132nd schachmattmatt 531 49 11 Aug 2021 140th sstadick 520 50 24 Jan 2018 140th sacthedev 520 50 3 Apr 2018 140th tsundokul 520 50 6 Nov 2018 140th atayarani 520 50 17 Jan 2019 140th Noxilex 520 50 20 Mar 2019 140th op-ecoprintq 520 50 31 Jul 2020 140th eggplants 🇯🇵 520 50 26 Nov 2020 147th san-nat 510 51 12 Dec 2020 147th frnco 510 51 2 Jun 2022 147th Krtecik 510 51 9 Feb 2024 147th Ralac07 🇦🇺 510 51 4 Jul 2024 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