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.
Grid Statistics
- Total Cells: 1600
- Mines: 280
- Safe Cells: 1320
- Mine Density: 17.5%
Tips for This Size
Large grids require patience and methodical clearing. Start from multiple points.