The Minesweeper hole will go live in approximately 2 days. Why not try and solve it ahead of time?
All holes 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 Holes Points Bytes Submitted 451st kenballus 3 773 323 6 Dec 2019 452nd mkessler 1 769 65 17 Mar 2021 453rd venus-as-a-boy 1 758 33 22 Oct 2018 453rd doberan 1 758 33 2 Nov 2020 453rd desecaw13 1 758 33 25 Jan 2025 456th JOrE-Softwares 2 756 1,079 3 Jun 2025 457th xyangst 1 755 53 3 Oct 2024 458th ureishi 🇯🇵 1 750 44 30 Jan 2021 459th lowie1803 1 750 56 22 Jun 2023 460th apbassi89 1 748 528 2 Jun 2025 461st Seanharrs 1 746 67 14 Sep 2022 461st vzsky 1 746 67 8 Nov 2022 461st khall 1 746 67 9 Mar 2024 464th evanbattaglia 1 742 198 23 Apr 2021 465th Espiobest 1 738 61 13 Feb 2021 466th anishghosh103 1 735 34 15 Mar 2020 466th raphaelimahorn 1 735 34 2 Sep 2021 466th lilyyy411 1 735 34 10 Sep 2021 466th MichaelMBradley 🇨🇦 1 735 34 21 Mar 2022 466th oceko 1 735 34 26 Nov 2022 466th nstearns96 🇬🇧 1 735 34 15 Dec 2022 466th CheeseCake628 🇳🇴 1 735 34 15 Feb 2023 466th hellopatrick 1 735 34 26 Dec 2023 474th aliakseikalosha 1 735 68 22 Apr 2022 475th gabe-gallegos 1 731 52 15 May 2024 476th bstrautin 1 727 77 12 Jun 2020 477th dunghopper 1 726 106 26 Oct 2023 478th rholliday 2 726 283 2 Mar 2021 479th McTano 1 725 69 17 Nov 2020 479th peculiarination 1 725 69 3 May 2021 481st dvargas46 🇺🇸 1 723 119 26 Mar 2022 482nd TheAristos 5 716 4,142 11 Dec 2019 483rd cefqrn 1 714 35 26 May 2024 484th croc54 1 714 49 10 Dec 2024 485th lux9 1 714 70 5 Oct 2020 485th No-Jons 1 714 70 27 Oct 2020 485th Xyberista 1 714 70 29 Mar 2021 485th dylanarmstrong 1 714 70 18 Dec 2023 485th TheDrawingCoder-Gamer 1 714 70 2 Jul 2025 490th yrral86 1 710 62 9 Mar 2018 490th drkameleon 🇪🇸 1 710 62 28 Jan 2020 492nd volpi-m 🇫🇷 2 709 2,466 19 Mar 2024 493rd RaBa21 🇭🇺 2 708 1,787 19 Jul 2025 494th germania 1 704 71 4 Jan 2020 494th c99zealot 1 704 71 1 Aug 2020 494th SpeedyNinja 1 704 71 20 Oct 2020 494th techeverri 1 704 71 21 Apr 2022 494th DxSper 1 704 71 16 Feb 2024 499th vrnprkh 1 700 70 30 Mar 2023 500th olliebaum 1 698 63 12 Jul 2018 501st rambox11 2 694 125 30 Jan 2019 502nd roguh 🇬🇹 1 688 48 14 Jan 2024 503rd rachelambda 1 685 73 7 Jun 2020 504th DragonaireM 1 677 62 6 Feb 2023 504th arctouch-cristiannevianna 1 677 62 20 Oct 2023 504th trinityy-7 1 677 62 29 Jul 2025 507th ted 1 677 65 17 Apr 2018 508th 5quiwyrm 1 676 37 31 Aug 2022 509th aglahir1 1 676 74 5 Nov 2021 510th joshuaballoch 1 675 292 15 Jan 2020 511th gfund 1 674 46 5 Oct 2022 512th dymowski 2 671 1,078 15 Jul 2019 513th DmitryArtyomov 1 667 75 25 Apr 2020 514th MichalMarsalek 🇨🇿 2 667 1,048 2 Sep 2022 515th murcielago09z 1 660 50 11 Aug 2025 516th MichaelWarnecke 1 658 76 27 Apr 2020 516th Cobrabb 1 658 76 7 Oct 2021 518th 0dyse 1 656 61 6 May 2025 519th polyrtm 1 644 45 29 Mar 2023 520th angetheo 1 641 39 19 Jan 2018 520th okkun-oreo 1 641 39 2 Nov 2020 520th TheRealOhead 🇺🇸 1 641 39 24 Nov 2022 520th Maximizer02 1 641 39 17 Sep 2025 524th martynas-sm 1 641 78 13 Apr 2021 525th llwwns 1 636 143 1 May 2023 First Prev 451–525 of 792 Next Last