Best response to the Nimzo-Larsen Attack: Classical Variation (A01)

1. b3 d5 · White to move

What is the best response to the Nimzo-Larsen Attack: Classical Variation (1. b3 d5)? White to move. See the top replies ranked by opening theory and real-game results, starting with Ba3.

The main theoretical reply is Ba3, reaching the Nimzo-Larsen Attack: Graz Attack.