King's Gambit Accepted: Cunningham Defense, McCormick Defense

1.e4 e5 2.f4 exf4 3.Nf3 Be7 4.Bc4 Nf6

ECO C35

The King's Gambit Accepted: Cunningham Defense, McCormick Defense is a chess opening line in the King's Gambit Accepted complex, reached after 1.e4 e5 2.f4 exf4 3.Nf3 Be7 4.Bc4 Nf6.

It is catalogued under code C35 in the Encyclopaedia of Chess Openings (ECO).

The defining move Nf6 is chosen by Black on move 4.

Study this line with a grandmaster

This position is covered in the King's Gambit course: a GM-authored repertoire you study move by move, then practice against a human-like AI opponent.

Every chess term used here is defined in the chess terms glossary. Browse all opening courses or the full ECO code index.