Blackmar-Diemer Gambit Accepted · D00

Gunderam Defense, Stader Variation

1. d4 d5 2. e4 dxe4 3. Nc3 Nf6 4. f3 exf3 5. Nxf3 Bf5 6. Ne5 e6 7. g4 Be4

Black keeps the extra pawn; White plays for time, open lines, and initiative - the classic gambit trade.

The first 4 moves, explained

• 1. d4 Stakes a claim in the centre, controlling e5, and frees the bishop and queen.
• 1... d5 Stakes a claim in the centre, controlling e4, and frees the bishop and queen.
• 2. e4 Stakes a claim in the centre, controlling d5, and frees the bishop and queen. The pawn is genuinely on offer - this is the Blackmar-Diemer Gambit: development and initiative over material.
• 2... dxe4 Takes the pawn on e4, toward the centre and opens the d-file for the queen.

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