The Nimzoindian Defense from the Indian Games, is undoubtedly the greatest contribution from Aron Nimzovich to the openings theory. In the battle for the control of d4, black is willing to exchange his dark-squared Bishop for the white Knight at c3.
1. d4 Nf6 2. c4 e6 3. Nc3 Bb4
Try yourself the Nimzoindian Defense
opening below. You have white pieces and move first.