Play Minesweeper Online — Free Logic Puzzle
Introduction
Minesweeper is the classic logic game where every number on the board is a clue to where the mines are hidden. Click a square and it either reveals a number telling you how many mines touch it, or it is empty, or — in the classic version — it is a mine and the game is over. This version has a twist that serious players have wanted for years: every board is guaranteed solvable by pure logic, so you never have to guess. Play it free in your browser with no download and no account.
About Minesweeper
Minesweeper has been part of computing culture since the 1960s and became a global habit when it shipped with Windows in 1990. The rules are simple: a grid hides a fixed number of mines, and each revealed square shows how many of its eight neighbours contain a mine. Flag the mines, clear everything else, and you win.
The skill in Minesweeper is reading the numbers as a system of equations. A "1" touching exactly one unknown square tells you that square is a mine. A "1" touching two unknown squares next to another "1" touching the same two tells you neither is. The classic game sometimes forces a coin-flip guess, which is why this version's guarantee matters: the generator here produces only boards where every mine can be located by logic alone.
This version is based on Kaboom, an open-source implementation by Paweł Marczewski released under the MIT licence. It runs entirely in your browser, supports the standard grid sizes, and its "cruel but fair" generator means every loss is your own reasoning error — never a bad roll of the dice.
How to Play Minesweeper
Reveal a square.
Click a square to reveal what is underneath. A number tells you how many mines surround it; an empty square reveals its neighbours automatically; a mine ends the game.
Read the numbers.
Each number counts the mines in the eight squares around it. A 1 means exactly one mine, a 2 means exactly two, and so on up to 8.
Flag suspected mines.
Right-click a square (or use the flag tool on touch) to mark it as a mine. Flagging keeps your reasoning visible and prevents you from clicking a square you know is dangerous.
Clear the safe squares.
Once a square's surrounding mines are flagged, you can safely reveal the remaining neighbours around it. The game is won when every non-mine square is revealed.
Win without guessing.
On this site every board is solvable by logic alone. If you are stuck, you have missed a deduction — no move ever needs to be a gamble.
Minesweeper Controls
| Action | Desktop | Mobile |
|---|---|---|
| Reveal a square | Left-click a square | Tap a square |
| Flag a mine | Right-click a square | Switch to the flag tool, then tap a square |
| Chord (reveal neighbours) | Click a revealed number whose mines are all flagged | Tap a revealed number whose mines are all flagged |
| Switch tools | Click the reveal or flag tool button | Tap the reveal or flag tool button |
| Restart the game | Click the New Game button | Tap the New Game button |
| Choose grid size | Select Small, Medium or Large before starting | Select Small, Medium or Large before starting |
| Fullscreen | Click the fullscreen button above the grid | Tap the fullscreen button above the grid |
| Exit fullscreen | Escape key | Tap the fullscreen button again |
Minesweeper Tips & Strategies
Start from the empty openings
The first reveal opens a large empty area on most boards. Work outward from empty squares, because a revealed number surrounded by empty squares is almost always solvable immediately.
Learn the 1-2-1 pattern
When a 1 and a 2 sit next to each other in a row with three unknown squares below them, the two squares under the 2 are mines and the squares under the 1s are safe. This one pattern solves a huge share of boards.
Learn the 1-2-2-1 pattern
The sequence 1-2-2-1 over a row of unknown squares means the middle two are mines and the outer two are safe. Spotting these repeated patterns turns fast scanning into fast solving.
Treat flags as the answer, not the goal
Flag every mine you are certain about — but remember that flagging is not the win condition. The goal is revealing all safe squares, and a wrong flag is as bad as a wrong reveal.
Work from known numbers inward
When you solve one cluster of numbers, its edge becomes a new set of known clues. Keep expanding from confirmed territory instead of jumping to an unexplored corner of the grid.
When stuck, re-check the boundaries
A square at the edge of the board has fewer neighbours, which makes its clues easier to read. If the middle of the board feels stuck, solve the border first — it usually unlocks the interior.
What makes Minesweeper worth playing
- Classic Minesweeper where every board is solvable by logic alone
- No guessing mode — a unique guarantee most minesweeper sites do not offer
- Runs entirely in your browser with no download or plugin
- Multiple grid sizes for easy, medium and expert play
- Open source under the MIT licence with credit to the developer
Game Info
| Developer | Paweł Marczewski |
|---|---|
| Released | 2019 |
| Genre | Puzzle, Logic |
| Players | Single player |
| Technology | HTML5 / JavaScript |
| Platforms | Desktop, Tablet, Mobile browser |
| Average session | About 8 minutes |
| Licence | MIT |
| Last updated |
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Minesweeper — Frequently Asked Questions
Is Minesweeper free to play?
Yes, completely. The game is open source under the MIT licence and free to play here with no payment, no sign-up and no premium version.
What makes this Minesweeper different?
Every board on this page is generated so that it can be solved by pure logic, with no guessing. In classic minesweeper, players sometimes reach a coin-flip position; here that never happens.
How do the numbers work?
Each revealed number tells you how many mines are in the eight squares around it. A 1 means exactly one mine touches that square, a 2 means two, and so on.
Can I play Minesweeper on my phone?
Yes. Tap to reveal and switch to the flag tool to mark mines. The game works in portrait and landscape on mobile browsers.
How do I flag a mine?
On desktop, right-click a square to flag it. On touch devices, switch to the flag tool and then tap the square. Flagging keeps your reasoning visible.
What does the chord move do?
Clicking a revealed number whose surrounding mines are all flagged reveals the remaining safe neighbours in one action. It is the fastest way to clear large areas.
What other logic puzzles are on this site?
If you enjoy deduction, Nonogram and Sudoku are both pure logic puzzles on the same category page, free in your browser with no download.
Licence & Attribution
Based on Kaboom by Paweł Marczewski · MIT License
Licence verified .