Rated 5.00 out of 5 based on 1 customer rating
(1 customer review)


In brand new 10.5-hours Mastermind, GM Marian Petrov gives you a complete opening repertoire for Black based on Grunfeld Defense! GM Petrov does a superb job clearly explaining every main-line, side-line, and transposition making sure you have a world-class opening preparation that will serve you a lifetime.