E55 - Nimzo-Indian: 4.e3 O-O 5.Nf3 c5 6.Bd3 d5

Variation: Nimzo-Indian: 4.e3 O-O 5.Nf3 c5 6.Bd3 d5

Initial Move: The main line of the IQP Nimzo-Indian. A highly technical struggle where White's activity is pitted against Black's structural solidity. Learn this opening step by step