What Is Minesweeper?
Expert Minesweeper is the full classic challenge: 30 columns, 16 rows, and 99 hidden mines.
The board is wide enough that you must manage several active fronts at once, while the mine density punishes unsupported guesses.
Expert is where advanced techniques matter most: chained deductions, mine counting, probability checks, and disciplined flag placement.
How to Play Minesweeper
Expert Minesweeper rewards patience, board-wide awareness, and careful endgame counting.
- 1Prioritize large openings so you can reduce the number of isolated guessing zones.
- 2Track long edge patterns and compare them with nearby interior clues.
- 3Use flags only when they unlock information or are logically forced.
- 4Before guessing, count remaining mines against the remaining hidden cells in that region.
- 5In the endgame, slow down and reconcile every flag with the global mine counter.
Why Expert Minesweeper Is the Classic Challenge
- •The 30x16 board creates long fronts where one clue can affect decisions far away.
- •99 mines make density management essential: over-flagging and guessing both become costly.
- •Expert favors advanced pattern recognition, probability awareness, and careful endgame counting.
Minesweeper FAQ
How hard is Expert Minesweeper?
Expert is the hardest classic preset: a 30x16 board with 99 mines. It requires strong pattern recognition, careful flagging, and endgame counting.
Is the first click safe?
Yes. Mines are placed after your first reveal, so the opening click and its nearby cells are safe.
How do I place a flag?
Use right click on desktop, or turn on Flag Mode on mobile and tap a square.
What are the classic Minesweeper sizes?
Beginner is 9x9 with 10 mines, Intermediate is 16x16 with 40 mines, and Expert is 30x16 with 99 mines.