After the introductory moves of our Line 144, the game usually continues with 7… c5 8. Ne2 Nc6 9. Be3. Now, Black has at his disposal a sideline 9… cxd4 10. cxd4 b5!? that should give him a satisfying position. By far the main option is 9… O-O, where after 10. O-O Black has several viable choices. Line 145 is dedicated to 10… Bg4 and 10… Qc7, while 10… Na5, 10… Bd7 and 10… b6 are also frequently seen in top level games.
The position arising after 10… Na5 11. Bd3 b6 is highly complicated and well-investigated, so it demands a considerable knowledge of many nuances.
[Diagram: Black to Move] A. Timofeev – I. Kurnosov, Khanty Mansiysk (m/1) 2012. Black has tactical means to make something concrete out of the pressure on the d4-pawn. Can you see how he can win some material?
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