You exchange the bishop on f4 to open the g-file (gxf4) and double rooks there. Black will protect his weakness on this file with all his forces. You transfer your pieces to the other side, create a new weakness there, and the opponent will be helpless
The topic of this 60 minute video clip is the major idea of the 8.h3 0-0 9.Bd3 line. It has not won much love among defenders of the Benoni - White players are coming dangerously close to realising the dream of squeezing the opponent.
On this DVD Grandmaster Daniel King offers you a repertoire for Black against the Catalan, based around maintaining the rock of a pawn on d5. Keeping central control ultimately gives Black good chances to launch an attack against the enemy king.
The usual move order is 1 d4 Nf6 2 c4 c5 3 Nf3 cxd4 4 Nxd4 e5!? 5 Nb5 d5 6 cxd5 Bc5 bringing us to a very sharp position. Andrew MArtin shows this variation from black's point of view.
