1. Main line 1. d4 d5 2. Nf3 Bf5 3. c4 e6 4. Nc3 c6 Choose a line 1. Main line 1. d4 d5 2. Nf3 Bf5 3. c4 e6 4. Nc3 c6 Close 1. Main line 1. d4 d5 2. Nf3 Bf5 3. c4 e6 4. Nc3 c6 Next