[<< wikibooks] Chess Opening Theory/1. e4/1...e6/2. d4/2...d5/3. exd5/3...exd5/4. c4/4...Nf6/5. Nc3
= Variation c4 =

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

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== References ==
Batsford Chess Openings 2 (1989, 1994). Garry Kasparov, Raymond Keene. ISBN 0-8050-3409-9.