1. Main line 1. d4 d5 2. c4 e5 3. dxe5 d4 4. Nf3 Nc6 5. g3 Choose a line 1. Main line 1. d4 d5 2. c4 e5 3. dxe5 d4 4. Nf3 Nc6 5. g3 2. Be6 Line 1. d4 d5 2. c4 e5 3. dxe5 d4 4. Nf3 Nc6 5. g3 Be6 3. Bf5 Line 1. d4 d5 2. c4 e5 3. dxe5 d4 4. Nf3 Nc6 5. g3 Bf5 4. Bg4 Line 1. d4 d5 2. c4 e5 3. dxe5 d4 4. Nf3 Nc6 5. g3 Bg4 Close 1. Main line 1. d4 d5 2. c4 e5 3. dxe5 d4 4. Nf3 Nc6 5. g3 2. Be6 Line 1. d4 d5 2. c4 e5 3. dxe5 d4 4. Nf3 Nc6 5. g3 Be6 3. Bf5 Line 1. d4 d5 2. c4 e5 3. dxe5 d4 4. Nf3 Nc6 5. g3 Bf5 4. Bg4 Line 1. d4 d5 2. c4 e5 3. dxe5 d4 4. Nf3 Nc6 5. g3 Bg4 Next