1.e4 e5 2.Nf3 Nc6 3.Bc4 Nf6
Black’s third move, 3… Nf6, sidesteps the Giuoco Piano and provides Black with counter attacking opportunities.
White is eyeing Black’s vulnerable f7 pawn. While Black can not stop the coming attack on its f7 pawn, There are counter attacks at his disposal. For example:
5… Nd4 a.k.a Fritz Variation
An alternative try by Black is 4… Bc5!?
4.Ng5 Bc5!? Traxler Counter Attack