D00BlackEnd of book
Brombacher Countergambit
Blackmar-Diemer Gambit Declined1. d4 d5 2. e4 dxe4 3. Nc3 Nf6 4. f3 c5
Also known as Blackmar-Diemer Gambit Declined, Brombacher Countergambit, Blackmar-Diemer Gambit, Declined, Brombacher; Daberitz Var, BDG.