In September 1946, after Hu Zongnan was beaten by Chen Geng in the Battle of Wenxia, he was very unconvinced and ordered the main force to march north and attack Chen Geng from the north and south of Yan Xishan.
On September 22, Hu Zongnan's two brigades captured Chen Geng's position at Fushan.

Just when he was satisfied, Chen Geng captured the fighter plane and used part of his forces to carry out a feint attack on the enemy occupying Fushan in order to mobilize the enemy's 1st Brigade at Linfen, and then gathered the main force in a relatively gentle and open area north of the Linfen (Fen) and Fu (Shan) roads to prepare to annihilate the enemy reinforcements.
His specific arrangements were: to encircle and annihilate the 2nd Regiment of the Enemy's 1st Brigade, which had already advanced to Guanque, with 1 brigade, to cut off the enemy's connection between Linfen and Fushan, to block the enemy's westward advance at Fushan with 1 brigade, to contain the troops of the Taiyue Military Region to hold the enemy at Fushan, and to use 1 regiment to contain the other enemy troops gathered in Linfen.
Fighting in this way, Chen Geng was bold in taking it down.
Because only 2 of the 4 brigades of the 4 columns really competed with the enemy's "1st Brigade under Heaven", and they fought on the front line of the Lin (Fen) and Fu (Shan) roads, they were likely to be attacked by Hu Zongnan's heavy troops from east to west and fell into a dangerous situation.
However, Chen Geng dared to take this risk.
Because, he had long wanted to eat this "first brigade in the world" of his old classmate Hu Zongnan.
As a result, Chen Geng's troops feigned an attack on the enemy who had captured Fushan. Dong Zhao, commander of the Hu Army's 1st Army, and Luo Lie, commander of the 1st Division, immediately ordered the most elite 1st Brigade to go to the rescue.
On the night of the 22nd, the 2nd Regiment of the Enemy's 1st Brigade marched into gongque village with great momentum. Unexpectedly, as soon as they entered Guanque Village, they were surrounded by Li Chengfang's 11th Brigade of Chen Geng's column. The night the fighting began.
Wang Yawu, commander of the 2nd Regiment of the enemy's 1st Brigade, was a famous "fierce Zhang Fei" under Hu Zongnan. The battle was unprecedentedly fierce, from the night of the 22nd to the day of the 23rd, and the two armies fought point by point. Casualties were severe on both sides.
However, by 3:00 a.m. on the 24th, Li Chengfang had completely solved the enemy 2nd Regiment, and Wang Yawu was killed.
At the same time that Li Chengfang surrounded and annihilated the enemy's 2nd Regiment, Huang Zhengcheng, commander of the enemy's 1st Brigade, immediately led the brigade headquarters and the 1st Regiment to the rescue. As a result, on the way, he and Zhou Xihan's 10th Brigade were engaged in Chenyan Village. After the battle began, it was still like the battle in Guanque Village, and the two sides fought over a house and a yard, and the fight was inextricably divided. However, by the early morning of the 24th, Huang Zhengcheng and the remnants of the enemy were finally surrounded by Zhou Xihan dead in several courtyards, becoming turtles in an urn.
Chen Geng ordered Zhou Xihan: "We must end the battle before dawn." ”
Zhou Xihan concentrated all the brigade's firearms and troops to storm Huang Zhengcheng's brigade headquarters, attacking the front and rear of the troops, and rushing to the wall courtyard where the enemy was holding. Huang Zhengcheng finally couldn't resist in a compound and disarmed themselves.
At this point, the most elite "1st Brigade under Heaven" that Hu Zongnan boasted was completely destroyed.
Huang Zhengcheng wore a soldier's uniform in an attempt to fool through the customs, but was still found out. However, after being captured, he still couldn't figure out how he had fallen into the trap set by Chen Geng, and he was still very unconvinced, seeing Chen Geng muttering: "You fight unruly... Sneaking around, not following the rules, rushing and beating..."
Chen Geng listened and laughed, "I caught you, it is the best exercise." ”