This should start with Zhuge Liang's character ~ Zhuge Liang is a cautious person ~ so he can't adopt Wei Yan's adventurous advice of sneaking into Ziwu Valley and withdrawing from Chang 'an ~ And it involves one's principles ~ For example, Zhuge adopted Wei Yan's strategy of Jones ~ Then Zhuge completely denied his own strategic policy ~ One wouldn't do such a stupid thing in order to keep the principle of being a man ~ This is understandable ~ And Shu was actually in his hands when he went north. I didn't play many cards ~ you can see that Zhuge used Masu when guarding the street pavilion. Zhuge Liang thought that Ma Su was just an armchair strategist ~ but because of Ma Su's repeated demands, he wanted to prove that he was not an armchair strategist ~ and Zhuge himself valued Ma Su ~ but he valued him ~ In fact, Zhuge Liang thought that Ma Su was not a general ~ But he didn't expect that he was not a general ~ Station troops on the hill ~ The history of failure once again proved that armchair strategist was just a legend ~