D97Black9 book lines continue
Russian Variation, Hungarian Variation
Grünfeld Defense1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. Qb3 dxc4 6. Qxc4 O-O 7. e4 a6
Also known as Gruenfeld: Russian, Alekhine (Hungarian) Variation, Gruenfeld Defense: Russian Variation, Hungarian Variation, Gruenfeld Defense, Russian Variation.