King's Gambit Declined: Falkbeer Countergambit, Nimzowitsch-Marshall Countergambit

1.e4 e5 2.f4 d5 3.exd5 c6

ECO C31

The King's Gambit Declined: Falkbeer Countergambit, Nimzowitsch-Marshall Countergambit is a chess opening line in the King's Gambit Declined: Falkbeer Countergambit complex, reached after 1.e4 e5 2.f4 d5 3.exd5 c6.

It is catalogued under code C31 in the Encyclopaedia of Chess Openings (ECO).

The defining move c6 is chosen by Black on move 3.

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.