How to win at Minesweeper every time?

Minesweeper is a pure logic puzzle disguised as a game. The numbers tell you everything you need to know — no guessing required (on most boards). Fundamental logic: A cell showing '1' has exactly 1 mine in its 8 adjacent cells. A cell showing '3' has exactly 3 mines in its adjacent cells. The two key deduction rules: Rule 1 (satisfied number): If a number cell has exactly that many unrevealed neighbors, all unrevealed neighbors are mines. Flag them. Rule 2 (all mines found): If a number cell already has that many flagged neighbors, all remaining unrevealed neighbors are safe. Click them. Advanced techniques: 1-2 pattern: When a '1' and '2' share two unrevealed cells, the cell adjacent only to the '2' must be a mine. Edge detection: Cells on edges and corners have fewer neighbors, making deductions easier. Start by clicking near edges. Subtraction: If two numbered cells share some neighbors, subtract the shared ones to determine the unshared ones. The most important Minesweeper tip: always use both mouse buttons. Left-click to reveal, right-click to flag. And if you must guess (rare but possible), click near already-revealed cells where you have the most information.