MINESWEEPER

Minesweeper 40x40

A massive board about as dense as Intermediate. Change any number below or start as it is.

Grid
40 × 40
Mines
280
Cells to clear
1320
Mine density
17.5%

Quick Presets

Grid size: 40×40 = 1600 cells

Mine density: 17.5%

Deals a board you can clear by logic alone, with no 50/50 guesses.

About the 40x40 preset

This is a starting point for the custom game builder: a massive 40×40 board carrying 280 mines across 1600 cells, or 17.5% density. That puts it in the same difficulty band as Intermediate (40 mines on 16×16), so what changes here is scale rather than difficulty — 1320 cells to clear instead of 216.

Tips for This Size

Large grids require patience and methodical clearing. Start from multiple points.

Frequently Asked Questions

Is 40x40 a good size to learn on?

This size is best for experienced players who enjoy longer, methodical games.

How many safe cells are on this board?

There are 1320 safe cells out of 1600 total cells.

Can I tweak this preset?

Yes. Use the custom settings above to adjust width, height, or mine count and start a new game.

More to play