Which episode is the debate between Huang Zhizhong and Li Dan in?

The debate between Huang Zhizhong and Li Dan was the fourth issue of Qi Pa Shuo 6: The tutor showed off Li Dan’s fancy debate. Huang Zhizhong’s distant cry said that Yang Chaoyue was confused. According to relevant public information, the sixth season of "Qi Pa Shuo" has been broadcast for four episodes so far. The audience is almost tired of the petty fights between the weirdos. This episode is finally the turn of the mentors. In this episode, the positive team composed of Cai Kangyong, Luo Zhenyu, Huang Zhizhong, and Zhan Qingyun will face the negative team composed of Xue Zhaofeng, Li Dan, Xu Jiru, and Fu Seoul. I thought it would be a debate competition where a hundred flowers bloomed, but I didn't expect that Li Dan stood out and became the MVP of this competition.