D56Black30 book lines continue
Lasker Defense
Queen's Gambit Declined1. d4 d5 2. c4 e6 3. Nc3 Be7 4. Nf3 Nf6 5. Bg5 h6 6. Bh4 O-O 7. e3 Ne4
Also known as Queen's Gambit Declined: Lasker Defense, 6. Bh4 O-O 7. e3 Ne4, Queen's Gambit Declined, Lasker Defense, QGD: Lasker Defence.