Blackmar-Diemer Gambit Accepted: Gunderam Defense

1.d4 d5 2.e4 dxe4 3.Nc3 Nf6 4.f3 exf3 5.Nxf3 Bf5

ECO D00

The Blackmar-Diemer Gambit Accepted: Gunderam 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 Bf5.

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

The defining move Bf5 is chosen by Black on move 5.

One named continuation branches from this position: the Stader Variation.

Named variations

• Blackmar-Diemer Gambit Accepted: Gunderam Defense, Stader Variation — ECO D00

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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.