Minesweeper looks like a game of chance the first time you play: you click, you hope. In reality, a large part of the game is pure logic — the best players rarely guess, they deduce. Here are the basic techniques that make the difference.

1. Always start with a large open area

The first click is never trapped: the cell you click first can never contain a mine, and the game arranges to reveal an empty area around it. The bigger the grid, the more likely you are to open a large area right away — use this space as a starting point to read the board rather than clicking randomly elsewhere.

2. The "complete" number rule

If a number already has as many flags around it as its value, then all other unrevealed adjacent cells are necessarily safe. For example, a "2" surrounded by two already-flagged cells: you can safely open all remaining cells around that number.

3. The "saturated" number rule

Conversely, if the number of unrevealed cells around a number equals its value, then all those cells are necessarily mines. A "3" with only three unknown cells around it: those three cells are definitely mined, you can flag them directly.

4. Compare two neighboring numbers

When two numbers touch and share several common unknown cells, you can sometimes deduce a mine's exact position by comparing their values. If a "2" and a "1" share two unknown cells, but the "1" has one extra unknown cell elsewhere, that extra cell is often the mine — the remaining shared cell then becomes safe by elimination.

5. Save corners and edges for last

Cells at the grid's edge have fewer neighbors, so less available information to deduce anything. If you're stuck, it's better to open the area richest in revealed numbers — that's where logical deductions are most reliable. Isolated corners and edges are often the last places where you actually need to guess a bit.

With these five reflexes, the vast majority of beginner and intermediate grids solve without ever having to gamble once. Real uncertainty only remains on rare configurations at the very end of a game.