Now the e4-pawn has become weak, besides which Black has a constant problem with the passive knight on a6.

White converted his extra pawn into victory.

Fighting against the blockade on d4.

3.Qxh5? Rh8 4.Qf3 Rh4 White has a problem with the f4-pawn

By this and his next move Black again directs all his attention to the d4-square.

Opening a new front. The game concluded:

Zugzwang.

White resigned.

Preparing a blockade on e4.