Almost 300 000 engine games as well as 30 000 games culled from the Mega 2019 + the Correspondence Database 2018 constitute the basis for the Nimzo-Indian Powerbook 2019. If you want to play for a win with Black against 1.d4 then hardly any opening is as well suited to the purpose as the Nimzo-Indian: it is rare for symmetrical positions to arise and not much is exchanged, instead of that exciting distributions of material often appear on your board. White requires patience. To be sure he can frequently obtain the bishop pair, but that does not necessarily promise him an advantage.