D93White9 book lines continue
Three Knights Variation, Hungarian Variation
Grünfeld Defense1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. Bf4 O-O 6. e3
Also known as Gruenfeld: 5.Bf4 O-O 6.e3, Gruenfeld Defense: Three Knights Variation, Hungarian Variation, Gruenfeld Defense, Three Knights Variation.