Blackmar-Diemer Gambit Accepted: Teichmann Defense, Seidel-Hall Attack

1.d4 d5 2.e4 dxe4 3.Nc3 Nf6 4.f3 exf3 5.Nxf3 Bg4 6.h3 Bxf3 7.Qxf3 c6 8.g4

ECO D00

The Blackmar-Diemer Gambit Accepted: Teichmann Defense, Seidel-Hall Attack is a chess opening line in the Blackmar-Diemer Gambit Accepted complex, reached after 1.d4 d5 2.e4 dxe4 3.Nc3 Nf6 4.f3 exf3 5.Nxf3 Bg4 6.h3 Bxf3 7.Qxf3 c6 8.g4.

It is catalogued under code D00 in the Encyclopaedia of Chess Openings (ECO).

The defining move g4 is chosen by White on move 8.

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