D35Black67 book lines continue
Exchange Variation, Positional Variation
Queen's Gambit Declined1. d4 Nf6 2. c4 e6 3. Nc3 d5 4. cxd5 exd5 5. Bg5 c6
Also known as QGD: Exchange, 5.Bg5 c6, Queen's Gambit Declined: Exchange Variation, Positional Variation, 4. cxd5 exd5 5. Bg5 c6, Queen's Gambit Declined, Exchange Variation.