

"The Zaitsev System is one of the most dynamic setups for Black in the ever popular Ruy Lopez chess opening.
When Alexey Kuzmin joined the coaching staff of World Champion Anatoly Karpov in the 1980s he started analysing the Zaitsev System, and later continued his investigations as a second of Alexander Morozevich. For this book he has updated and improved his analysis, and found countless innovations that change the assessments of many lines.
One of the drawbacks of the Zaitsev, some feel, is that White, if he wishes, can make a draw by repetition early on. To avoid this possibility, Kuzmin presents a brand-new weapon, which he calls the Saratov Variation, based on an early exchange on d4, that was never played by either Karpov or Morozevich."
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