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 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 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 Set Seven Segment SI Units Sierpiński Triangle Smith Numbers Spelling Numbers Star Wars Opening Crawl Sudoku Sudoku (Fill-in) Ten-pin Bowling Tic-tac-toe Time Distance Tongue-twisters 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 Grid Ellipse Perimeters Flags Floyd-Steinberg Dithering Gray Code Decoder Gray Code Encoder Hexagonal Spiral Highly Composite Numbers Hilbert Curve Mandelbrot Minesweeper NFA Simulator Odd Polyomino Tiling p-adic Expansion QR Encoder Quadratic Formula Scrambled Alphabetization Semiprime Numbers Snake Sphenic Numbers Star Wars GPT 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 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 Groovy Harbour Hare Haxe Hush Hy iogii Odin Picat Qore Racket Rebol Rexx Scala Squirrel Stax Uiua 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 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 Groovy Harbour Hare Haxe Hush Hy iogii Odin Picat Qore Racket Rebol Rexx Scala Squirrel Stax Uiua 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 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 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 Set Seven Segment SI Units Sierpiński Triangle Smith Numbers Spelling Numbers Star Wars Opening Crawl Sudoku Sudoku (Fill-in) Ten-pin Bowling Tic-tac-toe Time Distance Tongue-twisters 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 Grid Ellipse Perimeters Flags Floyd-Steinberg Dithering Gray Code Decoder Gray Code Encoder Hexagonal Spiral Highly Composite Numbers Hilbert Curve Mandelbrot Minesweeper NFA Simulator Odd Polyomino Tiling p-adic Expansion QR Encoder Quadratic Formula Scrambled Alphabetization Semiprime Numbers Snake Sphenic Numbers Star Wars GPT Trinomial Triangle Turtle Tutorial # Golfer Points Chars Time 74th AlephSquirrel 667 39 7 Mar 2023 74th vluyzvg 667 39 30 Mar 2023 74th LostSyntax21 🇬🇧 667 39 23 Aug 2024 79th ejini6969 650 40 22 Mar 2023 79th aydamak 650 40 15 May 2024 81st robymus 634 41 17 Sep 2018 82nd biinari 619 42 27 Mar 2018 82nd adoxography 619 42 22 Jul 2018 82nd jstanley0 619 42 12 Dec 2020 85th ConorOBrien-Foxx 605 43 10 Apr 2018 85th nlc 605 43 11 Apr 2018 85th reireias 605 43 30 Jul 2019 85th handisb 605 43 14 Sep 2019 85th mogron 605 43 13 Dec 2019 85th dwayneparton 605 43 8 May 2020 85th Michaelncallahan 605 43 8 May 2020 85th aksyristos 605 43 31 Jan 2023 93rd snltd 591 44 14 Aug 2019 93rd sapphyrus 591 44 18 Feb 2020 93rd meenie 591 44 1 Jan 2021 93rd Pluviolithic 591 44 17 Oct 2023 97th tom-lord 578 45 8 Nov 2017 97th clupasq 578 45 3 Feb 2018 97th biji1 578 45 26 Apr 2018 97th atsushiootani 578 45 7 Aug 2018 97th 0xddom 578 45 18 Dec 2019 97th tadd 578 45 16 Apr 2020 97th Secozzi 578 45 21 Oct 2020 97th Luj8n 578 45 12 Nov 2021 97th badboj40 578 45 14 Feb 2023 97th rucin93 🇵🇱 578 45 23 Apr 2023 107th rlue 565 46 8 Nov 2017 107th basuneko 565 46 8 Nov 2017 107th JeremyC-za 565 46 10 Nov 2017 107th Yytsi 565 46 14 Mar 2019 107th TFeld00 🇩🇰 565 46 6 Jun 2019 107th th0rex 565 46 10 Jun 2019 107th Mir0ff944 565 46 23 Oct 2019 107th fynnkroeger 565 46 17 Oct 2022 115th kobaltz 553 47 8 Nov 2017 115th stevehodges 553 47 8 Nov 2017 115th iamsolarpowered 553 47 15 Dec 2017 115th babcockd 553 47 19 Dec 2017 115th Mikaeel66 553 47 10 Nov 2019 115th branch14 553 47 3 Aug 2020 115th maths22 🇺🇸 553 47 9 Dec 2020 115th HallMatthew314 553 47 10 Dec 2021 115th Edjyzod 553 47 3 Oct 2022 124th jacobsmith 542 48 15 Feb 2018 124th yokasuretsu 542 48 18 Apr 2018 124th Marcel-Brouette 542 48 26 Aug 2018 124th jamespeilunli 542 48 1 May 2022 128th alexkurowski 531 49 8 Nov 2017 128th Boostik 531 49 7 Jan 2018 128th chris-arsenault 531 49 2 Feb 2018 128th caerbannogwhite 531 49 13 Apr 2018 128th jetpks 531 49 27 Jun 2019 128th boxjelly 531 49 12 Feb 2021 128th RustemB 🇷🇺 531 49 4 May 2021 128th schachmattmatt 531 49 11 Aug 2021 136th sstadick 520 50 24 Jan 2018 136th sacthedev 520 50 3 Apr 2018 136th tsundokul 520 50 6 Nov 2018 136th atayarani 520 50 17 Jan 2019 136th Noxilex 520 50 20 Mar 2019 136th op-ecoprintq 520 50 31 Jul 2020 136th eggplants 🇯🇵 520 50 26 Nov 2020 143rd san-nat 510 51 12 Dec 2020 143rd frnco 510 51 2 Jun 2022 143rd Krtecik 510 51 9 Feb 2024 143rd Ralac07 🇦🇺 510 51 4 Jul 2024 147th flavono123 500 52 15 Jul 2019 147th pandapawskat 500 52 7 Oct 2021 149th sqlreader 491 53 28 Nov 2020 149th purp 491 53 12 Aug 2022 Prev 76–150 of 175 Next