1. Main line 1. Nf3 c5 2. e3 g6 3. d4 Bg7 4. dxc5 Qa5+ Choose a line 1. Main line 1. Nf3 c5 2. e3 g6 3. d4 Bg7 4. dxc5 Qa5+ Close 1. Main line 1. Nf3 c5 2. e3 g6 3. d4 Bg7 4. dxc5 Qa5+ Next