The Minesweeper hole will go live in approximately 3 days. Why not try and solve it ahead of time?
Fibonacci 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 Submitted 147th ls-samer-abuthaher 758 33 35ms 7 Oct 2022 147th desecaw13 758 33 34ms 25 Jan 2025 153rd nlc 735 34 33ms 11 Apr 2018 153rd caerbannogwhite 735 34 34ms 14 Apr 2018 153rd ajc2 735 34 34ms 1 May 2018 153rd anishghosh103 735 34 37ms 15 Mar 2020 153rd theLobsterRevolution 735 34 35ms 30 Dec 2020 153rd raphaelimahorn 735 34 36ms 2 Sep 2021 153rd lilyyy411 735 34 34ms 10 Sep 2021 153rd bac0id 735 34 35ms 18 Oct 2021 153rd AIn0n 735 34 35ms 1 Dec 2021 153rd MichaelMBradley 🇨🇦 735 34 32ms 21 Mar 2022 153rd oceko 735 34 36ms 26 Nov 2022 153rd nstearns96 🇬🇧 735 34 39ms 15 Dec 2022 153rd CheeseCake628 🇳🇴 735 34 35ms 15 Feb 2023 153rd epic-programmer-guy 735 34 34ms 15 Dec 2023 153rd stellartux 735 34 36ms 24 Dec 2023 153rd hellopatrick 735 34 34ms 26 Dec 2023 153rd Lv0Sys 🇵🇱 735 34 39ms 31 May 2025 153rd albanian-laundromat 735 34 35ms 26 days ago 171st JKHiggins 714 35 40ms 27 Jun 2019 171st jetpks 714 35 37ms 27 Jun 2019 171st idoschor 714 35 38ms 30 Nov 2020 171st bbakersmith 714 35 35ms 30 Jul 2021 171st FnControlOption 714 35 39ms 21 Aug 2022 171st cefqrn 714 35 37ms 26 May 2024 171st madeforlosers 714 35 35ms 22 Nov 2024 178th Mir0ff944 694 36 31ms 24 Oct 2019 179th iamsolarpowered 676 37 35ms 15 Dec 2017 179th Boostik 676 37 36ms 7 Jan 2018 179th robymus 676 37 35ms 17 Sep 2018 179th boxjelly 676 37 34ms 9 Feb 2021 179th 5quiwyrm 676 37 35ms 31 Aug 2022 179th truisseaux 676 37 32ms 4 Sep 2024 179th edsrzf 🇳🇿 676 37 35ms 13 Sep 2024 186th stevehodges 641 39 39ms 8 Nov 2017 186th JeremyC-za 641 39 45ms 9 Nov 2017 186th angetheo 641 39 34ms 19 Jan 2018 186th sacthedev 641 39 36ms 3 Apr 2018 186th okkun-oreo 641 39 34ms 2 Nov 2020 186th TheRealOhead 🇺🇸 641 39 35ms 24 Nov 2022 186th madex 🇩🇪 641 39 36ms 20 Jul 2024 186th Maximizer02 641 39 36ms 17 Sep 2025 194th yokasuretsu 625 40 35ms 16 Apr 2018 194th atsushiootani 625 40 34ms 7 Aug 2018 194th esmg1 625 40 35ms 22 Aug 2018 194th MichalMarsalek 🇨🇿 625 40 34ms 2 Sep 2022 194th Heathcorp 🇦🇺 625 40 37ms 26 Nov 2022 194th nortonbatista 625 40 34ms 31 Oct 2023 200th JRaspass 🇬🇧 610 41 36ms 23 Mar 2021 200th MCausc78 🇺🇦 610 41 34ms 29 Dec 2022 200th lgrandco 610 41 35ms 9 Oct 2024 203rd tadd 595 42 45ms 16 Apr 2020 203rd Ralac07 🇦🇺 595 42 42ms 17 Jun 2024 203rd Just4FunCoder 595 42 35ms 26 Aug 2024 206th evanSpendlove 581 43 35ms 10 Dec 2020 207th biji1 568 44 46ms 26 Apr 2018 207th martica 568 44 36ms 20 May 2018 207th msbranicky 568 44 31ms 7 Sep 2023 210th greghull 556 45 43ms 8 Nov 2017 210th Noxilex 556 45 33ms 20 Mar 2019 210th ashtraypettingzoo 🇺🇸 556 45 36ms 16 Feb 2023 210th hacker112 🇸🇪 556 45 48ms 1 Jul 2024 214th adoxography 543 46 246ms 20 Sep 2018 214th CaAlden 543 46 36ms 10 May 2019 216th snltd 532 47 38ms 18 Aug 2019 216th michaelbaudino 532 47 262ms 18 Oct 2020 216th JesseNoEyes 🇺🇸 532 47 34ms 26 Sep 2024 216th Mikey-Beep 🇬🇧 532 47 31ms 20 Aug 2025 220th timcustard 521 48 35ms 10 Nov 2017 220th sech1p 🇵🇱 521 48 35ms 30 Dec 2020 220th martinnorling 🇸🇪 521 48 33ms 6 Feb 2022 220th purp 521 48 35ms 13 Aug 2022 220th eiburns 521 48 35ms 7 Sep 2023 220th SwordF-Official 521 48 43ms 2 Jun 2025 First Prev 151–225 of 268 Next Last