Since 1993, that's what I've been missing from my mine sweeper game. All these years I couldn't understand why I could never finish the game. Hahaha! :)
There are actually some expert players who intentionally play without the flags as an extra challenge. They have to remember (or re-deduce) where the mines are. The game is considered won whenever the number of unexposed squares, whether explicitly flagged or not, or equal to the total number of mines.
Since 1993, that's what I've been missing from my mine sweeper game. All these years I couldn't understand why I could never finish the game. Hahaha! :)