How to Win at Expert Minesweeper

Work the board in regions

Expert uses a 30 by 16 grid with 99 mines. Scan for a region with several connected clues and solve it before jumping elsewhere. Keep confirmed flags mentally distinct from guesses; an incorrect flag can make every later count unreliable.

Choose a boundary where several open clues touch the same covered region. Resolve the facts those clues share before moving to an isolated corner, and keep uncertain flags distinct from confirmed mines.

Let boundaries narrow the clues

Corners and edges have fewer neighboring squares than the middle of the board. Count those neighbors carefully and compare each clue with the cells it actually touches. When a safe reveal opens a wide area, use the new clues to reconnect separate regions.

Corners have only three neighbors and edges have five, compared with eight in the middle. This smaller set can make an edge clue more informative. After opening a new strip, scan its full boundary before changing regions.

Know when logic runs out

Some boards eventually leave a genuine choice between equally possible squares. Recheck all nearby clues and flags before taking that risk. If the deduction is still unresolved, choose deliberately and accept that not every round is determined by logic alone.

Keep the Expert board manageable

The 30 by 16 Expert board has many connected clues, so work along one open boundary at a time. After an area opens, revisit the nearby numbers before jumping across the grid. Zoom can help you see a local group of clues, while Fit to screen restores the full-board view.