Best response to the Sicilian Defense: McDonnell Attack (B21)

1. e4 c5 2. f4 · Black to move

What is the best response to the Sicilian Defense: McDonnell Attack (1. e4 c5 2. f4)? Black to move. See the top replies ranked by opening theory and real-game results, starting with e5.

The main theoretical reply is e5, reaching the King's Gambit Declined: Mafia Defense.

Ranked replies for Black