Blackmar-Diemer Gambit: Lemberger Countergambit, Endgame Variation

1.d4 d5 2.e4 dxe4 3.Nc3 e5 4.dxe5

ECO D00

The Blackmar-Diemer Gambit: Lemberger Countergambit, Endgame Variation is a chess opening line in the Blackmar-Diemer Gambit complex, reached after 1.d4 d5 2.e4 dxe4 3.Nc3 e5 4.dxe5.

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

The defining move dxe5 is chosen by White on move 4.

The Blackmar-Diemer Gambit: Lemberger Countergambit, Endgame Variation is a line of the Blackmar-Diemer Gambit. The Blackmar-Diemer Gambit is a chess opening that begins 1.d4 d5 2.e4 dxe4 3.Nc3 Nf6 4.f3. Read the complete Blackmar-Diemer Gambit guide: what it is, how to reach it, its main variations, how to play against it, and its history.

More ECO D00 openings

• Amazon Attack — 1.d4
• Blackmar-Diemer Gambit Accepted — 1.d4
• Blackmar-Diemer Gambit Declined: Brombacher Countergambit — 1.d4
• Blackmar-Diemer Gambit Declined: Elbert Countergambit — 1.d4
• Blackmar-Diemer Gambit Declined: Gedult Defense — 1.d4
• Blackmar-Diemer Gambit Declined: Lamb Defense — 1.d4

Do you want to learn openings?

Start with a GM-authored repertoire you study move by move, then practice against a human-like AI opponent:

• Catalan Opening
• King's Indian Defense with ...e5

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