With the mission of clearing the long diagonal for the bishop.

Of course. Any other move permits 2 Bd4 virtually burying the bishop on b7.

5.Bxh2 Qxd4
5.Kxh2 Bxb4!

With a sound extra pawn, Black is winning.

Sacrificing a pawn to seize the a3-f8 diagonal with the bishop.

1.Ra1? Ba4!

Black has managed to cover the f7-pawn, but White finds a way to step up the pressure.

With ideas like Bh5, Qb1-b4 and Bxe6 followed by Qg4.

Black resigned.

Preparing the strong manoeuvre ...Bf8-c5-d4.