Grivas: Opening Lab 5The author presents a full opening repertory for the club player, which is analysed in six volumes. In the books you will find many novelties for both sides, with a full move to move presentation. Furthermore, the reader will get access to middlegame strategies, endgame techniques and common tactical motifs, which are patterning the proposed variations. In the fifth volume the openings of the Chigorin Defence, the Queens Gambit Declined, the Tarrasch