Expert
Grid: 20 × 30 · Mines: 145 mines
For taking on the highest density and scale.
Expert is the largest grid at 20×30 with 145 mines — top-tier in both density and scale. Fast pattern recognition and total mine counting decide the match.
The high density means positions that require a guess come up more often. The judgment to pick the safest cell through probability reasoning is what matters.
- Clear confirmed cells as fast as possible with chording and patterns.
- Before guessing, use the total remaining mine count to find safe cells one more time.