Preparing Nd2-c4 with some advantage thanks to the superior pawn structure.

A strong pawn sacrifice, which creates a passed pawn on the f-file and enables a blockade on e5.

More precise was 4...f2! first, e.g. 5.Qe3 Ne5 6.g5 Qf3+ 7.Qxf3 Rxf3 with a clear advantage – Ni Hua.

Preparing 8...Rf8, followed by ...f3-f2.

With the strong threat of 11...f2.

Decisive. There followed:

And Black soon won.

In order to undermine the enemy blockade by 2...Qb4.

3.Qxb4?! cxb4 the black knight enters on c5 with great effect.