D30 - QGD: 3.Nf3 Nf6 4.e3 c6 5.Nbd2 Nbd7 6.Bd3

Discover how top players used QGD: 3.Nf3 Nf6 4.e3 c6 5.Nbd2 Nbd7 6.Bd3 to leverage key strategies to secure victories in these classic matchups.