D00BlackEnd of book
Elbert Countergambit
Blackmar-Diemer Gambit Declined1. d4 d5 2. e4 dxe4 3. Nc3 Nf6 4. f3 e5
Also known as Blackmar-Diemer: Elbert Countergambit, Blackmar-Diemer Gambit Declined, Elbert Countergambit, Blackmar-Diemer Gambit, Declined.