However , Hao Zhao outwitted Zhuge Liang by building interior walls within the outer walls .
With the ditches removed , the siege engines moved upon the castle while foot - soldiers climbed the walls like ants .
Hao Zhao outwitted Zhuge Liang by building interior walls within the outer walls .
With the ditches removed , the siege engines moved upon the castle while foot - soldiers climbed the walls like ants .