King's Gambit Accepted: Kieseritzky Gambit, Brentano Defense

1.e4 e5 2.f4 exf4 3.Nf3 g5 4.h4 g4 5.Ne5 d5

ECO C39

The King's Gambit Accepted: Kieseritzky Gambit, Brentano Defense is a chess opening line in the King's Gambit Accepted complex, reached after 1.e4 e5 2.f4 exf4 3.Nf3 g5 4.h4 g4 5.Ne5 d5.

It is catalogued under code C39 in the Encyclopaedia of Chess Openings (ECO).

The defining move d5 is chosen by Black on move 5.

One named continuation branches from this position: the Caro Variation.

Named variations

• King's Gambit Accepted: Kieseritzky Gambit, Brentano Defense, Caro Variation — ECO C39

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.