E12Black2 book lines continue
Kasparov-Petrosian Variation, Classical Variation
Queen's Indian Defense1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. a3 Bb7 5. Nc3 d5 6. cxd5 exd5
Also known as Queen's Indian: Petrosian, 6.cxd5 exd5, Queen's Indian Defense, Kasparov-Petrosian Variation.