Chess Opening Theory/1. e4/1...e5/2. Nf3/2...Nc6/3. Bb5/3...f5/4. Nc3/4...fxe4/5. Nxe4/5...d5/6. Nxe5/6...dxe4/7. Nxc6/7...Qd5
Both of White's developed pieces are threatened with capture, so 8. c4 is necessary to distract the Black queen.
Both of White's developed pieces are threatened with capture, so 8. c4 is necessary to distract the Black queen.