Queen's Gambit Declined: Semi-Tarrasch Defense, with e3

1.d4 d5 2.c4 c5 3.Nf3 Nf6 4.Nc3 e6 5.e3 Nc6 6.Bd3

ECO D40

The Queen's Gambit Declined: Semi-Tarrasch Defense, with e3 is a chess opening line in the Queen's Gambit Declined complex, reached after 1.d4 d5 2.c4 c5 3.Nf3 Nf6 4.Nc3 e6 5.e3 Nc6 6.Bd3.

It is catalogued under code D40 in the Encyclopaedia of Chess Openings (ECO).

The defining move Bd3 is chosen by White on move 6.

The Queen's Gambit Declined: Semi-Tarrasch Defense, with e3 is a line of the Queen's Gambit Declined. The Queen's Gambit Declined is a chess opening that begins 1.d4 d5 2.c4 e6. Read the complete Queen's Gambit Declined guide: what it is, how to reach it, its main variations, how to play against it, and its history.

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Every chess term used here is defined in the chess terms glossary. Browse all opening courses or the full ECO code index.