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Chess openings

Opening family

Blackmar-Diemer Gambit Lines and Variations

The Blackmar-Diemer Gambit family contains 18 named lines in this opening book, spanning ECO D00. Use this page as the map, then open individual lines for exact move orders and diagrams.

Named lines
18
ECO coverage
D00
ECO volume
D (closed and semi-closed queen-pawn openings)
Shortest line
D00 Blackmar-Diemer Gambit: 1. d4 d5 2. e4

How to study this family

White

The gambit side must turn time and activity into concrete threats; if the initiative fades, the pawn deficit matters.

Black

The defending side should return material if needed to finish development and neutralize the initiative.

Start with the shortest line, then branch to the variations that change the pawn structure or tactical target. Memorizing every branch before understanding the family plan is usually wasted work.

Main named lines

Deep theory branches

Start with the root lineDrill this family