Eradicating the blockade of the passed pawn.

On other moves 4...d3 is decisive.

The pawn reaches d2 with decisive effect.

Ruling out any mating ideas with 13 Ng6. White resigned.

Heading for d3 to block the passed pawn.

White exploits the exposed position of the bishop on a6 in order to create some activity.

5...d3 6.e7 Re8 7.Qxd3 Rxe7 8.a4! with a decisive plus – Solozhenkin.

Thus White blocks the passed pawn and creates the threat of a3-a4, whereas Black has a problem with his exposed king. The game continued

followed by Rbe1, with a decisive attack.