Nurhachi can be a good fighter, but why can't he beat Yuan Chonghuan?
To know this reason, we need to know Yuan Chonghuan's determination to lead the troops against the Jin people in the war. Yuan Chonghuan, who served in the Ministry of War during the Apocalypse, personally supervised the military strength of the whole war. After being approved by the imperial court, he began to recruit soldiers, and many generals considered some frontier defense matters, making some important towns where he was located easy to defend but difficult to attack.
When Nurhachi fought against Yuan Chonghuan, Yuan Chonghuan showed the spirit of never back down, wrote bloody books in many places, met the enemy with heavy troops, guarded the grain and grass, and rectified the economy. Such a series of military measures have made their army's combat effectiveness soar, and they are in a comparable position with Nurhachi's army.
Moreover, Yuan Chenghuan was not the only team that attacked Nurhachi during the war with Yuan Chonghuan. The weather at that time was not only very cold, but in many cases, it had a strong disadvantage to Nurhachi's army. The right time, the right place and the right people were not on Nurhachi's side, and the cold weather at that time also seriously hit the enthusiasm of Nurhachi soldiers.
At that time, Mao also launched many Lao Xu wars against Nurhachi. After the successful sneak attack, he joined hands with Yuan Chonghuan to make the victorious Nurhachi be pulled down from the altar.