Black has developed his knight, to prevent White from taking the black pawn on e4.

White 43%, Black 39%, Draw 18%.^[1]

f3 87%, Bg5 10%, Bc4 1%, all other moves less than 1%.^[2]

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

1. d4 d5 2. e4 dxe4 3. Nc3 Nf6

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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.