195, [5] pp. German text. The Blackmar-Diemer Gambit (BDG) is an aggressive, somewhat unorthodox chess opening for White, starting 1. d4 d5 2. e4 dxe4 3. Nc3 Nf6 4. f3, sacrificing a pawn for rapid development, open lines, and quick attacks. While considered risky or 'unsound' at high levels, it boasts high scoring potential in blitz and club play by surprising opponents.
