Blackmar Diemer Gambit Middlegame (1.d4 d5 2.e4 / 1.d4 d5 2.e4 dxe4 3.Nc3 Nf6) Chess Puzzles

The blackmar diemer gambit middlegame begins from the defining pawn sacrifice 1.d4 d5 2.e4, usually followed by ...dxe4 and rapid piece development. “Middlegame” is not a single, fixed Blackmar-Diemer variation, so its exact plans depend on Black’s setup and White’s continuation, rather than on one universally documented move order.