Queen's Gambit Declined: Orthodox Defense, Henneberger Variation

1.d4 Nf6 2.c4 e6 3.Nf3 d5 4.Nc3 Be7 5.Bg5 O-O 6.e3 Nbd7 7.Rc1 a6

ECO D63

The Queen's Gambit Declined: Orthodox Defense, Henneberger Variation is a chess opening line in the Queen's Gambit Declined complex, reached after 1.d4 Nf6 2.c4 e6 3.Nf3 d5 4.Nc3 Be7 5.Bg5 O-O 6.e3 Nbd7 7.Rc1 a6.

It is catalogued under code D63 in the Encyclopaedia of Chess Openings (ECO).

The defining move a6 is chosen by Black on move 7.

The Queen's Gambit Declined: Orthodox Defense, Henneberger Variation 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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This position is covered in the Catalan Opening 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.