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Minesweeper looks like a game of luck, but most boards are won through careful logic. The version you can play on our Minesweeper page uses a 10×10 grid with 15 hidden mines. This guide explains how that board works and gives you a repeatable method for clearing it.
Know the board before you click
The grid has 100 cells and 15 mines, so about 15 percent of the cells are dangerous. Every revealed number counts the mines in the up to eight cells touching it, and that includes the diagonals. Beginners often forget the diagonals, and that is the most common reason a “safe” move turns out to be a mine.
When you reveal a cell with no neighbouring mines, the game opens the surrounding cells for you. This is called a cascade. Cascades give you the most information for the least risk, so you want to trigger one early.
The first click
In this version the mines are placed when the board is created, before you click anything. That means your very first click carries roughly a 15 percent chance of hitting a mine. If it happens, restart and try again. There is no penalty. A first click near the middle of the board is more likely to start a large cascade than a corner, although a corner cell touches fewer neighbours and is slightly more likely to show a zero.
Reading the numbers
- Only one hidden neighbour: if a “1” touches exactly one unrevealed cell, that cell is a mine.
- Mines already accounted for: if a number’s mines are all identified, every other unrevealed cell around it is safe, so you can reveal them.
- Counting down: if a “3” touches three unrevealed cells, all three are mines.
Work outward from the numbers, one number at a time, and re-check the numbers around any cell you reveal. Each new cell often unlocks a deduction you could not make a moment ago.
Two patterns worth memorising
The 1-2-1 pattern. Imagine a flat edge with three revealed cells in a row showing 1, 2, 1, and three hidden cells directly beside them. The mines are under the two outer hidden cells, and the middle one is safe.
The 1-2-2-1 pattern. With four revealed cells in a row showing 1, 2, 2, 1 against a flat edge, the mines sit under the two middle hidden cells and the outer two hidden cells are safe.
These patterns only hold when the revealed cells sit on a flat line with all their other neighbours already revealed, so check the surroundings before you trust them.
Compare neighbouring numbers
When two numbers share some of the same hidden cells, subtract one from the other. If a “1” and a “2” overlap so that the “2” has exactly one extra hidden cell, that extra cell must hold the second mine. Overlap logic like this solves many boards that look stuck.
Keep a running mine count
There are always exactly 15 mines. Keep a tally of the ones you have identified. Once you have found all 15, every remaining hidden cell is safe and you can clear them without further thought. The tally also helps late in the game, when few cells remain, because it limits how many mines can be left.
What to do when you have to guess
Sometimes no safe deduction exists. Compare your options before you click:
- A hidden cell next to a “1” that has two candidate cells is a 50 percent guess.
- With three candidate cells it is roughly 33 percent each.
- A cell far from every number is close to the board’s base density, around 15 percent, which is usually a safer gamble.
Picking the lowest-risk cell, rather than the nearest one, is what separates consistent winners from lucky ones.
Common mistakes
- Forgetting that diagonals count.
- Clicking quickly without re-reading the numbers after each reveal.
- Ignoring the total mine count.
- Guessing in the middle of an unresolved area instead of finishing a logical deduction first.
Frequently asked questions
Can every board be solved without guessing? No. Some layouts force a guess, which is part of the challenge.
Why did I lose on my first click? Mines are placed before the first click, so there is a small chance of hitting one immediately. Restart and try again.
How do I get better? Play short rounds, stop to explain each move to yourself, and revisit the patterns above until they feel automatic.
Ready to practise? Play Minesweeper online or browse our other free browser games.
