Clearing some space for the bishops before White manages to consolidate by Nd6, Kg2-f3, etc.

After 2.exf6 gxf6 Black obtains a potential passed pawn, and White loses his outpost on d6.

3.Nxb7? Rb8 4.Rd7? Be8 5.Rc7 Rxb7! 6.Rxb7 Bc6 -+

The bishop shifts to the more promising h1-a8 diagonal.

With ideas like 8...Bf3, winning the battle for the d-file. By now the range of the bishop pair is rather worrying for White, whereas the knights are lacking protected squares. Black later won.

Intending ...b5-b4 to weaken the a1-h8 diagonal for the bishop, in particular the d4-square.

Now the bishop is doing a great job in helping his colleague to put pressure on g2.

And subsequently won the game.

Giving up the bishop pair in exchange for another advantage: a weak enemy pawn on d6.