Ruy Lopez: Closed Berlin Defense, Chigorin Variation

1.e4 e5 2.Nf3 Nc6 3.Bb5 Nf6 4.O-O d6 5.d4 Nd7

ECO C66

The Ruy Lopez: Closed Berlin Defense, Chigorin Variation is a chess opening line in the Ruy Lopez complex, reached after 1.e4 e5 2.Nf3 Nc6 3.Bb5 Nf6 4.O-O d6 5.d4 Nd7.

It is catalogued under code C66 in the Encyclopaedia of Chess Openings (ECO).

The defining move Nd7 is chosen by Black on move 5.

Study this line with a grandmaster

This position is covered in the Opening Tricks Hall of Fame 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.