How to Cut Your Finishing Time
Practical tips for clearing faster.
The key to speed is chording. Place your flags accurately, then get into the habit of pressing the number cell to open its surroundings in one go — it cuts your click count dramatically.
You don't need to flag every single mine. It's faster to mark only as many as chording requires and to open obviously safe cells right away.
Once pattern recognition becomes second nature, your calculation time disappears. Practice spotting wall patterns like 1-1 and 1-2-1 instantly and your times will naturally come down.