The power of a passed pawn at the seventh row!

We all like to have a passed pawn in our games. A passed pawn in our opponent`s hands may be not to our pleasure. So we should try to get him ourselves as a measure to set our opponent under pressure.-

When the passed pawn comes more forward, the pressure will increase. Is he at the seventh (or second) row, tension will increase at its highest point. Only one step to queening. So combination are now also possible. Just seen in endgame of WC- game 6 between Anand and Kramnik

So let us now see another game, where white sacrifies his queen to get a passed pawn at seventh row:

It is a demonstration of the power of such a passed pawn. Black is always occupied not let queening it and gets into mate net.

Perhaps you did not understand every move in game 2. But keep in mind, which trouble made this passed pawn on b7. It hinders black to coordinate his piece play, because he is occupied with hindering the queening