Minesweeper patterns

Once you can spot a handful of number patterns, much of Minesweeper becomes instant. These are the shortcuts that turn slow deduction into fast, confident play — and they never require a guess.

The 1-1 pattern (along an edge)

Two adjacent 1s pointing into the same covered squares often resolve each other. When a 1 sits next to revealed squares with only one covered neighbour, that neighbour is the mine — and the next 1 along is then already satisfied, making its other squares safe.

The 1-2-1 pattern

A classic. Along a straight edge of covered squares, a 1-2-1 means the two outer squares (under the 1s) are mines, and the middle square (under the 2) is safe.

The flags show the mines; the open middle square is the safe reveal.

The 1-2-2-1 pattern

Its longer cousin. A 1-2-2-1 along an edge puts the mines under the two middle 2s, leaving the squares under the outer 1s safe to open.

Reduction: simplify before you read

Before matching a pattern, subtract mines you've already found. A 2 that already touches one flag behaves like a 1 for its remaining squares. Reducing numbers this way reveals patterns hiding in plain sight — and it pairs perfectly with chording to clear them quickly.

Want to drill these without luck getting in the way? Practise on No-Guess Minesweeper, then test your speed in Classic Minesweeper. If the numbers themselves are still new, read what the numbers mean.