Chess Opening Theory/1. e4/1...e5/2. Nf3/2...d6/3. d4/3...exd4/4. Bc4

White declines to immediately recapture on d4, instead playing Bc4 and offering the pawn for rapid development and pressure on f7. This gambit, famously used by Paul Morphy to defeat the strong English player Thomas Wilson Barnes, exemplifies classical principles of rapid piece activity and initiative over material.

By inviting 4...Nf6 and responding with Ng5, White can generate swift threats before Black finishes development. If Black tries to hold the pawn with 4...c5 or 4...Nc6, they risk falling into a cramped and vulnerable position.

The safest course for Black is often to return the pawn and prioritize development with 4...Be7 and short castling. While not a mainline weapon at the highest level, the Morphy Gambit is a sharp and historically rich choice that can punish slow or passive responses.

1. e4 e5 2. Nf3 d6 3.d4 exd4 4.Bc4