Move 4. Qc2 is also a frequently seen continuation. Black has a couple of solid replies, among them 4… g6, with the idea Bf5, is our recommendation for club level players, while 4… e6 transposes to Line 072. The most common option is 4… dxc4, where after 5. Qxc4 move 5… Bf5 is dealt with separately in Line 087. The alternative 5… Bg4 is of about the same strength, and White’s usual reactions are 6. Nbd2 and 6. Nc3.
The idea of 4. Qb3 is similar to 4. Qc2 – defending the c4-pawn. Besides 4… dxc4 (which leads to the above described position after 5. Qxc4), players of Black often opt for 4… e6, where their opponents typically choose one of the following: 5. Bg5, 5. Nc3 (Line 265) or 5. g3.
[Diagram: Black to Move] I. Caspi – E. Postny, Aix-les-Bains 2011. White’s last move was 12. f4, attacking both black Knights at a time. However, Black has a nice countermeasure that leads to a position with mutual chances.
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