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1.d4 d5 2.e4 dxe4 3.Nc3 Nf6 4.f3 exf3 5.Nxf3 g6 6.Bc4 Bg7 7.h4 · ECO D00
Blackmar-Diemer Gambit Accepted: Bogoljubow Defense, Mad Dog Attack is a chess opening that arises after 1.d4 d5 2.e4 dxe4 3.Nc3 Nf6 4.f3 exf3 5.Nxf3 g6 6.Bc4 Bg7 7.h4. It is classified D00 in the ECO system, and the position after these moves has black to move.
This line is a variation within the Blackmar-Diemer Gambit Accepted family. The strategic ideas above describe the family as a whole; this particular line reaches them by the move order 1.d4 d5 2.e4 dxe4 3.Nc3 Nf6 4.f3 exf3 5.Nxf3 g6 6.Bc4 Bg7 7.h4.