Blackmar-Diemer Gambit Declined: Brombacher Countergambit
Blackmar-Diemer Gambit Declined: Brombacher Countergambit is a chess opening classified under ECO D00. Its defining line here is 1. d4 d5 2. e4 dxe4 3. Nc3 Nf6 4. f3 c5.
1. d4 d5 2. e4 dxe4 3. Nc3 Nf6 4. f3 c5
The diagram shows the position after 1. d4 d5 2. e4 dxe4 3. Nc3 Nf6 4. f3 c5. Play through it move by move in the interactive explorer.
Opening name, ECO code, and main line come from the Lichess open chess openings dataset.