Chess Opening Theory/1. d4/1...Nf6/2. c4/2...g6/3. Nc3/3...d5/4. cxd5/4...Nxd5/5. e4/5...Nxc3/6. bxc3/6...Bg7/7. Bc4

Grünfeld Defence rd nd bd qd kd rd pd pd pd pd pd bd pd pd bl pl pl pl pl pl pl pl rl bl ql kl nl rl 7. Bc4 This move places the bishop on a good, active post. However, the drawback is that Nf3 will become unplayable, since Bg4! will put unbearable pressure on d4. It's either Be2/Nf3, Bc4/Ne2 or Bc4/Nf3/h3. In this setup, the bishop will be more active, while in the other setup, the knight will be so. That other setup has increasingly popular since the 1980's. Theory table +789Bc4 c5Ne2 O-OO-O Nc6=Bc4 O-ONe2 c5O-O Nc6= Grünfeld Defence