Rubinstein Opening: Semi-Slav Defense

1.d4 d5 2.Nf3 Nf6 3.e3 e6 4.Bd3 Bd6 5.O-O O-O 6.b3 Nbd7 7.Bb2

ECO D05

The Rubinstein Opening: Semi-Slav Defense is a chess opening line in the Rubinstein Opening complex, reached after 1.d4 d5 2.Nf3 Nf6 3.e3 e6 4.Bd3 Bd6 5.O-O O-O 6.b3 Nbd7 7.Bb2.

It is catalogued under code D05 in the Encyclopaedia of Chess Openings (ECO).

The defining move Bb2 is chosen by White on move 7.

More ECO D05 openings

• Queen's Pawn Game — 1.d4

Study this line with a grandmaster

This position is covered in the Beat the London System 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.