Love me some old-school Minesweeper, but I did notice an annoying bug.
In the original, clicking both the left and right mouse buttons at the same time over a number after flagging the corresponding amount of mines would automatically open all the free spaces. That shortcut is here, but it takes between 3-5 attempts to register. This can be very problematic if you're trying to beat your old time, and a fix would be highly appreciated.