D07White2 book lines continue
Chigorin Defense, Janowski Variation
Queen's Gambit Declined1. d4 d5 2. c4 Nc6 3. Nc3 dxc4 4. Nf3
Also known as QGD: Chigorin, 3.Nc3 dxc4 4.Nf3, Queen's Gambit Refused: Chigorin Defense, Janowski Variation, Queen's Gambit Refused, Chigorin Defense.