Chess Openings

Blackmar-Diemer Gambit Declined: Vienna Defense

ECO D00 ยท Blackmar-Diemer Gambit Declined

The Blackmar-Diemer Gambit Declined: Vienna Defense (D00) is a chess opening in the Blackmar-Diemer Gambit Declined family, played by Black. It arises after the moves 1. d4 d5 2. e4 dxe4 3. Nc3 Nf6 4. f3 Bf5.

Moves: 1. d4 d5 2. e4 dxe4 3. Nc3 Nf6 4. f3 Bf5

About this opening

The Vienna Defense (4.f3 Bf5) declines to capture on f3 and develops the bishop outside first, keeping the structure intact. Black will often return the pawn later to achieve sound development and neutralize the attack. It is a cautious, effective way to decline the Blackmar-Diemer, denying White the open lines its gambit lives on.

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