Winning a pawn, and soon the game as well.

Giving up the exchange in order to seize the weak dark squares on the enemy kingside.

The most powerful recapture, which vacates the f4-square for the knight.

Thanks to his grip on the dark squares, Black is much better. The game continued:

Followed by ...h5-h4, and Black went on to win.

Clearing the way for the rook towards the weak square at c6.

Seizing the seventh rank.

White is practically winning.

Exploiting the tactical motifs along the f-file and the h2-b8 diagonal in order to launch an attack.