Best response to the Vienna Game: Max Lange Defense (C25)

1. e4 e5 2. Nc3 Nc6 · White to move

What is the best response to the Vienna Game: Max Lange Defense (1. e4 e5 2. Nc3 Nc6)? White to move. See the top replies ranked by opening theory and real-game results, starting with d4.

The main theoretical reply is d4, reaching the Vienna Game: Fyfe Gambit.