Nimzo-Indian Defense: Rubinstein System, Taimanov Variation

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 Nc6

ECO E40

The Nimzo-Indian Defense: Rubinstein System, Taimanov Variation is a chess opening line in the Nimzo-Indian Defense complex, reached after 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 Nc6.

It is catalogued under code E40 in the Encyclopaedia of Chess Openings (ECO).

The defining move Nc6 is chosen by Black on move 4.

Study this line with a grandmaster

This position is covered in the Nimzo-Indian Defense 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.