[<< wikibooks] Chess Opening Theory/1. d4/1...d5/2. e4/2...c5
== 2...c5 ==
After 3. dxc5 dxe4 (Nf6 seems better), Qxd8+ is possible. Black has lost the right to castle, but White's pawn on c5 is weaker that Black's e4-pawn. White is better.
After 3. exd5, Qxd5 (or Nf6) is possible, since 4. Nc3 runs into Qxd4.

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