Kotronias: The Exchange Sacrifice according to Tigran Petrosian Geschenkidee While working on this book

While working on this book in 2004 he achieved 3 GM norms in 5 tournaments

The goodnews about endgames is:

017 Chapter 1: French Defense

Pervakov and Afek are not household names but they compose chess studies and puzzles of such elegance and cleverness that they deserve to be famous

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Kotronias: The Exchange Sacrifice according to Tigran Petrosian Geschenkidee While working on this bookThe Art of the Exchange Sacrifice Tigran Petrosian, the ninth world chess champion, was one of the deepest thinkers the chess world has ever seen. His handling of complex positions was legendary. With his rare strategic feeling and exceptional vision, Petrosian gradually became one of the top exponents of the art of the exchange sacrifice, and perhaps the leading protagonist for the positional exchange sacrifice. Acclaimed author Vassilios Kotronias