1. Main line 1. d4 Nf6 2. c4 g6 3. f3 d5 Choose a line 1. Main line 1. d4 Nf6 2. c4 g6 3. f3 d5 2. Neo-Grünfeld Defense: with Nf3 1. d4 Nf6 2. c4 g6 3. Nf3 d5 3. Neo-Grünfeld Defense: with g3 1. d4 Nf6 2. c4 g6 3. g3 d5 Close 1. Main line 1. d4 Nf6 2. c4 g6 3. f3 d5 2. Neo-Grünfeld Defense: with Nf3 1. d4 Nf6 2. c4 g6 3. Nf3 d5 3. Neo-Grünfeld Defense: with g3 1. d4 Nf6 2. c4 g6 3. g3 d5 Next