In this game Alekhine demonstrated the case when the Pawn is stronger as the Queen. In the Hungarian language the names of chess pieces have two expressions – except the King. We have an official and a popular expression of chess pieces. Here I’ll describe these with the beginning of the official:
Pawn: foot-soldier, peasant
gyalogos, paraszt
Knight: hussar, horse
huszár, ló
Queen: leader, queen
vezér, királynő
Bishop: messenger, rifleman (by Maróczy)
futár, lövész
Rook: bastion, tower (by Maróczy)
bástya, torony
By the way, we could say in this game that the peasant was stronger as the leader or the foot-soldier was more estimable person as the queen. It will be obvious in the next game by analyzing of Alekhine.

Here is the painting of Cara Hollingsworth: Small Pawn Could Not Capture the QUEEN
But the Giant Pawn Could!
In every variant the f7-pawn seems stronger as the Black Queen. Here is four variant:
I. 20… Qb8 21.Nc6 Be5 (if 21… Qb7 then 22.Nxd8) 22.Bxe5 dxe5 23.Nxb8 Rxb8 24.Nc7! Rf8 25.Ne6 and next 26.Nxf8 and 27.Rd8.
II. 20… Qa7 21.Nc6 Be5 22.Bxe5 dxe5 23.Nxa7 Rxa7 24.Nxb6 Rf8 25.Nxc8 Rxc8 26.Rxd7.
III. 20… Qb7 21.Ne6 Be5 22.Nxd8.
IV. 20… Qc5 21.Ne6 Be5 22.Bxe5 dxe5 23.Nxc5 bxc5 24.Nc7 Rb8 25.Ne8!