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Chess Opening Theory/1. d4/1...d5/2. e4/2...dxe4/3. Nc3

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Blackmar-Diemer Gambit (BDG)
a b c d e f g h
8a8 black rookb8 black knightc8 black bishopd8 black queene8 black kingf8 black bishopg8 black knighth8 black rook8
7a7 black pawnb7 black pawnc7 black pawnd7 black kinge7 black pawnf7 black pawng7 black pawnh7 black pawn7
6a6 black kingb6 black kingc6 black kingd6 black kinge6 black kingf6 black kingg6 black kingh6 black king6
5a5 black kingb5 black kingc5 black kingd5 black kinge5 black kingf5 black kingg5 black kingh5 black king5
4a4 black kingb4 black kingc4 black kingd4 white pawne4 black pawnf4 black kingg4 black kingh4 black king4
3a3 black kingb3 black kingc3 white knightd3 black kinge3 black kingf3 black kingg3 black kingh3 black king3
2a2 white pawnb2 white pawnc2 white pawnd2 black kinge2 black kingf2 white pawng2 white pawnh2 white pawn2
1a1 white rookb1 black kingc1 white bishopd1 white queene1 white kingf1 white bishopg1 white knighth1 white rook1
a b c d e f g h
Position in Forsyth-Edwards Notation (FEN)

rnbqkbnr/ppp1pppp/8/8/3Pp3/2N5/PPP2PPP/R1BQKBNR b

Moves: 1. d4 d5 2. e4 dxe4 3. Nc3

Blackmar-Diemer Gambit (BDG)

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3. Nc3

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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.

Theory table

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

1. d4 d5 2. e4 dxe4 3. Nc3

3 4 5 6 7
Main line ...
Nf6		 f3
exf3		 Nxf3
g6		 Bc4
Bg7		 O-O
O-O		 ⩱
Lemberger Countergambit ...
e5		 dxe5
Qxd1+		 Kxd1
Nc6		 Nxe4
Nxe5		 =
Zeller Defense ...
Bf5		 f3
–		 =

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Wikipedia has related information at Blackmar-Diemer Gambit

References

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