Không rõ —
Zhongyang's Opening Study #1
Zhongyang's Opening Study · Central cannon vs left three-step tiger to opposite cannons — red left direct chariot
Zhongyang's Opening Study · Central cannon vs left three-step tiger to opposite cannons — red left direct chariot
Zhongyang's Opening Study · Central cannon vs left three-step tiger to opposite cannons — red left direct chariot
Zhongyang's Opening Study · Central cannon vs left three-step tiger to opposite cannons — red left direct chariot