Blackmar-Diemer Gambit Accepted: Teichmann Defense

1.d4 d5 2.e4 dxe4 3.Nc3 Nf6 4.f3 exf3 5.Nxf3 Bg4

ECO D00

The Blackmar-Diemer Gambit Accepted: Teichmann Defense 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.

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

The defining move Bg4 is chosen by Black on move 5.

3 named continuations branch from this position, including the Ciesielski Variation and the Classical Variation.

Named variations

• Blackmar-Diemer Gambit Accepted: Teichmann Defense, Ciesielski Variation — ECO D00
• Blackmar-Diemer Gambit Accepted: Teichmann Defense, Classical Variation — ECO D00
• Blackmar-Diemer Gambit Accepted: Teichmann Defense, Seidel-Hall Attack — ECO D00

Do you want to learn openings?

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• Catalan Opening
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Every chess term used here is defined in the chess terms glossary. Browse all opening courses or the full ECO code index.