Preparing a2-a4 and b4-b5 to gain some space and harass the active bishop on a6.

3...c5? fails to 4.b5 , Black first gets rid of the bishop.

Creating a potential passed pawn.

8...c4 9.Ne5 Nb4 was more active, although after 10.Qe2 N6d5 11.Ba3 White keeps the initiative.

Intending 13 e4 with better chances thanks to the queenside dominance.

Gaining some space and bothering the knight on f6.

Clearing some more space.

Forced, in view of the threat 9 Rxe8+.

With excellent attacking prospects.