The Minesweeper hole will go live in approximately 3 days. Why not try and solve it ahead of time?
Card Number Validation in all languages 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 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 Chars Time Submitted 526th neihousaigaai 598 108 17ms 4 Oct 2024 526th StefanHabel 🇨🇦 598 108 24ms 23 Jan 2025 526th CaedenHarper 🇨🇦 598 108 17ms 22 Jul 2025 529th dokutan 598 117 2ms 3 Oct 2024 530th MeWhenI 🇻🇦 597 98 7ms 1 Oct 2024 531st arcpolaris 592 120 358ms 28 Jan 2025 532nd SirBogman 🇺🇸 591 64 133ms 11 Jul 2025 533rd bac0id 589 119 2ms 10 Jan 2025 534th cros107 🇦🇺 587 110 17ms 1 Jan 2025 534th guilhem-roy 🇫🇷 587 110 18ms 29 May 2025 536th albanian-laundromat 587 284 1,051ms 13 hours ago 537th DialFrost 🇸🇬 586 67 9ms 25 Jan 2025 538th JunkIce 585 98 398ms 3 Dec 2024 538th commandblockguy 🇺🇸 585 98 669ms 1 Sep 2025 540th gigaprofisi 🇺🇸 585 110 10ms 11 Aug 2025 541st dokutan 584 174 5ms 21 Feb 2025 542nd h3ra993huskp 🇯🇵 583 159 336ms 25 Nov 2024 542nd Schmitt-Very-Cool 583 159 370ms 26 Sep 2025 544th mousetail 🇳🇱 582 111 22ms 6 Oct 2024 545th Trip-kun 581 136 2ms 5 Oct 2024 546th Mabeloid 🇳🇴 579 121 2ms 7 days ago 547th MeWhenI 🇻🇦 578 111 88ms 2 Oct 2024 548th michelebastione 🇮🇹 577 123 402ms 26 Aug 2025 549th dokutan 576 102 988ms 30 Aug 2025 550th OllieBoyne 🇬🇧 576 112 23ms 17 Oct 2024 550th WillConker 576 112 11ms 22 Oct 2024 550th maxgodfrey2004 🇨🇦 576 112 14ms 4 Jan 2025 553rd MeWhenI 🇻🇦 576 331 18ms 2 Oct 2024 554th CaedenHarper 🇨🇦 574 100 574ms 22 Jul 2025 555th 823126 574 112 10ms 13 Nov 2024 556th KatieLG 🇬🇧 572 99 1,081ms 1 Oct 2024 557th MeWhenI 🇻🇦 567 164 212ms 6 Oct 2024 558th blaztoma 🇱🇹 566 114 18ms 25 Sep 2025 558th solisolu 566 114 18ms 12 days ago 560th jipsong 🇩🇪 561 115 17ms 12 May 2025 561st CaedenHarper 🇨🇦 559 105 1,563ms 27 Sep 2025 562nd aliakseikalosha 559 127 354ms 10 Oct 2024 563rd rowechenzhong 556 116 13ms 17 Oct 2024 564th albanian-laundromat 556 343 51ms 11 days ago 565th madex 🇩🇪 554 116 10ms 1 Oct 2024 566th MeWhenI 🇻🇦 554 290 9ms 2 Oct 2024 567th JDiLenarda 🇫🇷 553 165 1,282ms 1 Oct 2024 568th dtbao20 🇻🇳 552 117 18ms 1 Oct 2024 568th Pyroan 552 117 17ms 22 Feb 2025 568th vgamula 🇺🇦 552 117 22ms 5 Aug 2025 571st edsrzf 🇳🇿 551 135 6ms 27 Feb 2025 572nd msbranicky 550 185 4ms 20 Jan 2025 573rd mousetail 🇳🇱 548 128 2ms 3 Oct 2024 574th elgan65536 547 118 11ms 2 Oct 2024 574th logvp 547 118 19ms 6 Oct 2024 574th ahmetdemirag 🇨🇾 547 118 10ms 6 Feb 2025 574th dirckvdende 547 118 21ms 10 Jul 2025 578th emgordon154 546 52 3ms 3 Nov 2024 579th zakariamouhid 545 118 10ms 1 Oct 2024 580th xyangst 543 171 193ms 1 Oct 2024 581st jtaxen 542 119 18ms 21 Oct 2024 581st psbpsbp 542 119 14ms 19 Dec 2024 581st klixel 🇨🇦 542 119 11ms 9 Apr 2025 584th najs91 542 131 382ms 15 Oct 2024 584th bac0id 542 131 375ms 9 Jan 2025 584th CaedenHarper 🇨🇦 542 131 377ms 11 days ago 587th eranws 540 119 9ms 23 Dec 2024 588th TaserTheFox 🇺🇸 538 120 19ms 8 Oct 2024 588th yokasuretsu 538 120 11ms 26 Jan 2025 588th Troon 538 120 9ms 17 Feb 2025 591st Sciman101 537 147 2ms 26 Mar 2025 592nd BREMAUCY 🇫🇷 533 121 20ms 18 Jul 2025 593rd deancureton 532 121 12ms 30 Dec 2024 594th msbranicky 531 175 189ms 13 Dec 2024 595th chartung17 529 122 10ms 24 Mar 2025 596th msbranicky 527 126 2,742ms 9 Jan 2025 597th msbranicky 525 123 17ms 3 Oct 2024 597th bobbysq 525 123 11ms 5 Oct 2024 597th wuzekai518 525 123 11ms 8 Oct 2024 597th vhoulbreque 🇫🇷 525 123 14ms 4 Feb 2025 First Prev 526–600 of 781 Next Last