Minesweeper Patterns: How to Clear the Board Without Guessing
Minesweeper isn't a guessing game most of the time. Experienced players recognize a few number patterns that tell them exactly where the mines are. Learn these and you'll clear boards much faster.
The basic rule
A number tells you how many mines touch that square, counting all eight neighbors. Two simple checks solve a lot:
- If a number has exactly as many covered neighbors as its value, all of them are mines.
- If a number already touches as many flagged mines as its value, every other neighbor is safe.
The 1-2-1 pattern
Three numbers in a row reading 1-2-1 along a straight edge of covered squares: the mines are under the two 1s, and the square under the 2 is safe.
The 1-2-2-1 pattern
Four numbers reading 1-2-2-1 along a straight edge: the mines are under the two 2s, and the squares under the 1s are safe.
The 1-1 pattern from a wall
When two 1s sit side by side starting from a wall or a corner of the covered area, the first 1 has only two possible spots for its mine, and those spots are shared with the second 1. That means the third square touching the second 1 is safe.
The 1-2 pattern
When a 1 sits next to a 2 along a covered edge, the 2 needs one more mine than the 1 can share with it. That extra mine must be in the square next to the 2 on the far side from the 1.
Subtracting numbers
Most patterns come from one idea: compare two neighboring numbers. Whatever covered squares the bigger number touches that the smaller one doesn't must hold the difference in mines. With practice you'll do this automatically.
When you must guess
Occasionally there's truly no safe move. Then guess where a mine is least likely: usually a square far from the big numbers, or a corner of an untouched area that could open up a lot of space.
Try the patterns on Royal Duels' Minesweeper. Your first tap is always safe, and clearing Hard (14×14 with 40 mines) is worth 3 points.