Queen for piece

There has been a lot of recent excitement about Queen sacrifices, especially where a player gives up the queen for long term attacking chances, rather than for a more direct mate. The recent game between Alireza Firouzja and Murali Karthikeyan saw Karthikeyan sac his queen for two pieces on move 9, but go onto win in 53 moves. Comparisons were made to Nezhmetdinovs classic queen sacrifice from 1962, but there have been other similar examples.
Here is a game from 1975 where Kavalek (as Black) gives up his queen for a single piece. He was certainly under pressure when he did so, and even after the sacrifice Portisch was still winning. But Kavalek kept pushing and pushing, and eventually found enough in the position to escape with a draw.

Portisch,Lajos (2635) - Kavalek,Lubomir (2555) [E80]
Hoogovens Wijk aan Zee (11), 27.01.1975