The plot of Zhang Fei and Ma Chao fighting at night comes from episode 52 of the old version of "The Romance of the Three Kingdoms" in which they captured Xichuan. \x0d\ "The Romance of the Three Kingdoms" episode 52 plot: \x0d\ Cao Cao once used counterintuitive tactics to defeat the Xiliang army. After Ma Chao was defeated, he was eager for revenge. Although he got the help of the Qiang people, he was powerful for a while, but in the end he was outnumbered. Gu, and credulously trusted the surrendered general. When he was defeated and retreated from Jizhou City, his wife and children were killed, so he had no choice but to defect to Zhang Lu in Hanzhong. Zhang Lu sent Ma Chao to attack Jiameng Pass to contain Liu Bei and save Liu Zhang. \x0d\　Zhuge Liang used a trick to provoke Zhang Fei to go to meet the enemy, and Liu Bei also went to supervise the battle in person. Ma Chao challenged, Zhang Fei met him with a spear. He had long wanted to meet this tiger general. The two fought fiercely for more than a hundred rounds in front of the pass, with no winner or loser. Liu Bei was watching the battle at the gate and saw that Ma Chao was in extraordinary attire and extremely brave. He was afraid that Zhang Fei would make a mistake, so he ordered his troops to retreat. Zhang Fei returned to the formation without a helmet, only wrapped in a scarf, mounted his horse and went out into the formation, and then fought with Ma Chao. The two fought for more than a hundred rounds, but still couldn't decide the outcome. Liu Bei once again offered gold and retreated his troops. At this time, it was getting late, and Liu Bei said: "Ma Chao is brave. Don't underestimate the enemy. Let's retreat to Shangguan and fight again tomorrow." Zhang Fei was ready to kill, so he shouted: "Order the sergeants to light more torches and arrange for a night battle." Before Ma Chao changed his horse and went out into the formation, he shouted: "Zhang Fei, do you dare to fight at night? If you have the courage, light a torch and fight tonight!" Zhang Fei immediately changed his mount, rushed out of the formation, and shouted: "Are you still afraid of you? Light a torch. Ma Chao, I can't catch you today, and I swear I won't return to the pass." Ma Chao said, "Zhang Yide, I can't kill you today, and I swear I won't return to the camp." The two armies lit up thousands of torches, Fighting at night, the two generals each showed their power. Liu Bei was so brave that he went down to the city to resolve the fight, and then the two of them returned to their respective formations. \x0d\ Liu Bei intended to accept Ma Chao, a tiger general. He used Zhuge Liang's plan and sent Sun Qian to bring gold and silk to make friends with Zhang Lu's counselor Yang Song. He then sent a letter to Zhang Lu, so that Zhang Lu ordered Ma Chao to withdraw his troops and sent Li Hui Talk about dropping Ma Chao. Liu Bei finally subdued Ma Chao and approached Chengdu. Liu Zhang was forced to surrender in Kaicheng. Liu Bei placed Liu Zhang in the Public Security Bureau and took charge of Yizhou as a pastoralist, laying the foundation for the Shu Kingdom, one-third of the world.