Black resigned.

After 17…Qxc2, White not only has great positional compensation for the pawn, but he can also win material straight away: 18.Rf2 Qc5 19.Rc1 Qd4 20.Nc7.

And Smyslov used his great knight on d5 to launch a decisive attack on the kingside:

Black resigned.

Taking up a strong central position a la Botvinnik. At the same time, now b6 is under attack and the d-file is closed, avoiding any rook exchanges.

Now, White can manoeuvre at his leisure. He increased his space advantage and obtained a clear advantage when Black lost patience and took on d5.

Black is clearly better: he has the attack with opposite-coloured bishops, with White’s king in the middle (not able to run away via g1). White’s bishop is almost a mere pawn, while Black’s is a superb Botvinnik bishop

If 31.b3 a4, also with tremendous pressure.

Perhaps you would not think so right away, but Black is winning!