Italian Game: Two Knights Defense, Kloss Gambit

1.e4 e5 2.Nf3 Nc6 3.Bc4 Nf6 4.Ng5 d5 5.exd5 Nb4

ECO C57

The Italian Game: Two Knights Defense, Kloss Gambit is a chess opening line in the Italian Game complex, reached after 1.e4 e5 2.Nf3 Nc6 3.Bc4 Nf6 4.Ng5 d5 5.exd5 Nb4.

It is catalogued under code C57 in the Encyclopaedia of Chess Openings (ECO).

The defining move Nb4 is chosen by Black on move 5.

The Italian Game: Two Knights Defense, Kloss Gambit is a line of the Italian Game. The Italian Game is a chess opening that begins 1.e4 e5 2.Nf3 Nc6 3.Bc4. Read the complete Italian Game guide: what it is, how to reach it, its main variations, how to play against it, and its history.

Study this line with a grandmaster

This position is covered in the Fried Liver Attack 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.