First, if Yuan Shao wins the battle of Guandu.

The battle of Guandu is one of the most important battles in the Three Kingdoms, which is related to who can dominate and unify the North. In fact, at the beginning of the battle of Guandu, everyone thought that Yuan Shao would win, because Yuan Shao had more soldiers and bigger territory than Cao Cao. At that time, Yuan Shao had hundreds of thousands of troops, and Cao Cao's mess added up to only about 50 thousand. The strength is so great that most people think that Yuan Shao has won. If Yuan Shao wins the battle of Guandu over Cao Cao, then Yuan Shao will certainly pursue the victory.

At that time, the two sides fought a decisive battle in Guandu, and Cao Cao's stronghold was probably behind Guandu. When Yuan Shao captured Guandu, he was bound to capture Xudu immediately. At that time, Cao Cao was short of food and grass, and the battle of Guandu suffered huge losses, so he could not keep many capitals. In the official history, Cao Cao tried to surrender, but was persuaded by Guo Jia. Then Cao Cao may surrender to Yuan Shao, who is the biggest force in the north, and all other forces in the north surrender to Yuan Shao. After Yuan Shao unified the north, he would go to the south.

Second, can the Yuan family rule the country?

Yuan Shao unified the north before Cao Cao, so the southern expedition will be advanced. Yuan Shaonan's expedition, Liu Biao should not have died, Liu Bei was only Liu Biao's men. When Wu Dong heard Yuan Shaonan's words, Lu Su would persuade Sun Quan to form an alliance with Liu Biao. Of course, Sun Ce may not be dead at that time. But it will soon, so the battlefield should still be Sun Quan's. Sun Quan and Liu Biao formed an alliance against Yuan. But at this time, we have to think that Liu Biao died later, and Sun Quan had not fully mastered Soochow at that time.

Even if the two sides fight against Yuan together, Zhou Yu will not be the conductor. Zhou Yu became commander in chief because Liu Bei was weak. If Zhou Yu does not command, then the two sides are likely to beat Yuan Shao, because the main battlefield at this time is not Chibi, and there is no chain. Therefore, after Yuan Shao's death, Liu Biao will be destroyed, then Dongwu will be destroyed, then Hanzhong will be captured in Sichuan, and finally the whole country will be unified. Of course, this is all under the condition that Yuan Shao is not brain-dead.