Chess Opening Theory/1. e4/1...e5/2. Nc3/2...Nf6/3. Bc4/3...Nxe4/4. Qh5/4...Nd6

=Vienna Game, Falkbeer Defence=

White has had the tables rudely turned on them! White must move the bishop or allow Black to free themselves by capturing it. Keeping up the pressure on f7 would be a good idea, and for reasons that will emerge later they wish to keep d5 free...


 * /5. Bb3/

/5. Qxe5/ is also plausible but is a complete anti-climax; once the queens are exchanged (5...Qe7 6. Qxe7+ Bxe7) Black's game will be easier by orders of magnitude. If Black needs more action, they can try 5...Be7 6. Qxg7 Bf6 7. Qg4 Nc6 (threatening Ne5 and Nd4 attacking c2) but after 8. Bb3 Black has about nothing for the pawn and the king is not safe.

Theory table
.

1. e4 e5 2. Nc3 Nf6 3. Bc4 Nxe4 4. Qh5 Nd6