Otherwise Black would play . . . Na7-b5 .

And eventually White managed to squeeze out a win.

When exchanging a piece you can try to eliminate an active piece of your opponent, but when attacking you can also try and remove one of your opponent's strongest defensive pieces. So what would you play in the diagram position?

The difficulty here is maybe that, when conducting an attack on the king, you are disinclined to opt for an exchange of queens. Yet in this case, Black's attack continues with great force. The pawn on g2 is deprived of a defender and ... h4-h3 is a nasty threat.

But now 34...Bxg2+ 35.Kh2 Be4 was a pretty serious alternative.

36...Rxg2+ seems more forcing, but Black won easily anyway.

Here White continued with 12.Ng5. What would be his idea and should it work out?