Queen's Gambit Declined: Harrwitz Attack

1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Bf4

ECO D35

The Queen's Gambit Declined: Harrwitz Attack is a chess opening line in the Queen's Gambit Declined complex, reached after 1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Bf4.

It is catalogued under code D35 in the Encyclopaedia of Chess Openings (ECO).

The defining move Bf4 is chosen by White on move 4.

4 named continuations branch from this position, including the Fianchetto Defense and the Main Line.

Named variations

• Queen's Gambit Declined: Harrwitz Attack, Fianchetto Defense — ECO D37
• Queen's Gambit Declined: Harrwitz Attack, Main Line — ECO D37
• Queen's Gambit Declined: Harrwitz Attack, Orthodox Defense — ECO D37
• Queen's Gambit Declined: Harrwitz Attack, Two Knights Defense — ECO D37

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.