Though Black has a couple of options at his disposal, move 3… c5 is the most common choice. After 4. c3, continuation 4… Qb6 5. Nf3 Bd7, with the idea Bd7-b5, is our recommendation for club level players.
The game usually goes 3… c5 4. c3 Nc6 5. Nf3, where moves 5… Bd7 (Line 324) and 5… Qb6 are of about the same strength. Against the latter option, 6. a3, 6. Be2 and 6. Na3 are frequently seen, and in any case with complex strategical battles.
[Diagram: White to Move] F. Caruana – F. Vallejo Pons, Sao Paolo/Bilbao 2012. Black has just sacrificed a Knight on b4, and wants to make pressure on the pinned c3-Knight. How should White continue to get a strong initiative?
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