White has brought his minor piece into action and taken control of the middle. Simultaneously, he has put pressure on Black's e4-pawn, which Black must now try and defend. Nf6 or Bf5 would most commonly be used to defend the lone pawn, while e5 gives the option of a pawn transfer.

For explanation of theory tables, see theory table and for notation, see algebraic notation..

1. d4 d5 2. e4 dxe4 3. Nc3

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Wikipedia has related information at Blackmar-Diemer Gambit

• Kasparov, Garry, & Keene, Raymond 1989 Batsford chess openings 2. ISBN 0-8050-3409-9.