ECO C57 · Italian Game
Italian Game: Two Knights Defense, Knight Attack
The position after 1.e4 e5 2.Nf3 Nc6 3.Bc4 Nf6 4.Ng5.
1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. Ng5
Italian Game: Two Knights Defense, Knight Attack is filed under ECO C57, a variation of Italian Game: Two Knights Defense. It is the position after 1.e4 e5 2.Nf3 Nc6 3.Bc4 Nf6 4.Ng5 — 7 half-moves in, with Black to move. From here theory names 3 continuations: Bc5, Nxe4, d5.