The main line of the Fianchetto Variation of the Grünfeld Defense is the place where many theoretical battles take place. Very good players of have tried no less than ten (!?) different ideas on 10th move, leading to rather similar, yet slightly different set-ups.
After the main 10. Re1 a5 White has, again, tried about a dozen continuations, where some of them require Black’s surgical precision. That being said, it is probably the biggest drawback of this line for Black – too many lines to remember; apart from that, from a purely theoretical standpoint, Black’s position should be considered quite satisfactory.
[Diagram: Black to Move] R. Leitao – F. Caruana, Khanty-Mansiysk 2010. The diagrammed position should be dynamically balanced, but it requires accurate play from both sides. Caruana showed better preparation in the ensuing complications, so he managed to score a full point. How did Black continue?
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