Preparing ...Ba6 in order to exchange the "bad" bishop for White's "good" one.

2.Bg5 Bxg5 3.Nxg5 h6 4.Nf3 Ba6=

3.Bxa6 Nxa6 4.Rac1 Nab8 , preparing ...Nc6, ...Rc7 and ...Rfc8, Black has a minimal advantage thanks to his superior bishop and the vulnerable pawn on d4.

Black has no problems, and the once "bad" bishop has become excellent on b5.

Heading for g4 to swap Black's good bishop.

Or 1...f5 2.exf5 Bxf5 3.Bg4 Bxg4 4.hxg4 , intending 5.Bxc5 Rxc5 6.Ne4 with a typical "good knight vs. bad bishop" scenario.

The bishop exchange has emphasized Black's light square weaknesses, and his next move makes things even worse.

Eyeing the a5-pawn, with a huge positional advantage.

Preparing 2...h6 and 3...Bg5 to eliminate White's "good" bishop.