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GM Dorian Rogozenko: "The Opening Encyclopedia offers an ample and unique overview about the opening theory. In multiple videos and theoretical articles highly qualified trainers analyze and explain different opening variations and present them in a compact and easy-to-learn formats. Literary everyone, from beginners to Grandmasters, can find many ideas to expand their opening repertoire."
GM Dorian Rogozenko: "Whether you want to surprise your opponents with unexpected moves right from the beginning of the game, learn a complex theoretical variation, or understand the newest developments of the modern chess theory – the Opening Encyclopedia provides you with everything you need for that."
GM Hou Yifan (World Champion 2010-2017): 当人们让我推荐下棋软件时，我首先想到的词是ChessBase。在我的国际象棋生涯中，我一直在使用它。
GM Dorian Rogozenko: "It is my deepest conviction that the Opening Encyclopedia is the best product around in the field of opening theory, improving your knowledge about the openings and helping you to become considerably stronger in practice."
