Chess Opening Theory/1. d4/1...e6/2. c4

Queen's Pawn Opening
a b c d e f g h 8 8 7 7 6 6 5 5 4 4 3 3 2 2 1 1 a b c d e f g h
Position in Forsyth-Edwards Notation (FEN) rnbqkbnr/pppp1ppp/4p3/8/2PP4/8/PP2PPPP/RNBQKBNR

Queen's Pawn Opening

2. c4

White keeps the game in the realm of Queen pawn openings with this move. Most responses (like 2...Nf6 or 2...e4) transpose to other openings. A unique opening order is 2...Bb4+, the Keres Defense. This is usually also a transpositional tool, usually transposing into the Bogo-Indian Defense after 3.Bd2. However, even 3. Nc3 (then transposing into the Nimzo-Indian Defense) or 3. Nd2 (a unique order, but can transpose into the Bogo-Indian Defense) are both playable.

Theory table

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

1. d4 e6 2. c4

	2
	... d5	Nc3 Nf6	= to 1...d5 2. c4 e6
	... Nf6	Nf3 d5	= to 1...Nf6 2. c4 e6
Keres Defence	... Bb4+	=
English Defence	... b6	=
Dutch Defence	... f5	=

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References

• Nunn's Chess Openings. 1999. John Nunn (Editor), Graham Burgess, John Emms, Joe Gallagher. ISBN 1-8574-4221-0.
• Modern Chess Openings: MCO-14. 1999. Nick de Firmian, Walter Korn. ISBN 0-8129-3084-3.
• Batsford Chess Openings 2 (1989, 1994). Garry Kasparov, Raymond Keene. ISBN 0-8050-3409-9.