Grivas: Opening Lab 7In the seventh and final book of the series we will complete our quest and finalise the building of our White repertoire based on 1. d4. Firstly, we deal with how to face the Modern Defence, a duo of mainly strategic systems that were never extremely popular but are still played today, mostly at club players level. The proposed systems are based on healthy central schemes, which score a modest 50. 6% in a good number of games (approximately 27,500).