دانلود کتاب دفاع هندی شاه سیستم پتروسیان The Petrosian System Against the QIDComplete Coverage of 4.a3 by Real Expertsby Alexander Beliavsky, Adrian Mikhalchishin Our Price: € 19,95 Publisher: Chess Stars, 2008Edition: Paperback smallPages: 168Language: English The book deals with a reliable and interesting system (1 d4 Nf6 2 c4 e6 3 Nf3 b6 4 a3) which has been played by most of the world’s elite, starting with ex-world champion Tigran Petrosian. It is not a repertoire book ...