Accepted (3…exf4): Vienna Gambit line

Black takes the pawn. Push your e-pawn, drive the knight back, and take the whole centre.

1. e4
2. e5
3. Nc3
4. Nf6
5. f4
6. exf4
7. e5
8. Ng8
9. Nf3
10. d6
11. d4