Li Yongfu said, "My lord, do you really intend to attack the Eastern Luo Granary with eight thousand men? What if they leave ten thousand men there, or even more? What if the defenders simply hold their ground and refuse to come out? Even if everything goes as Master Yu predicts, unless we take the granary quickly, once word of our attack reaches this battlefield, Qin Yangming will surely go to its aid. Then our attacking force will be caught between advancing and retreating."
Hu Xiaotian said, "That is why we must take the Eastern Luo Granary in time." He turned his gaze toward Liang Yinghao.
Liang Yinghao said, "I have studied the area around the Eastern Luo Granary. To meet its transport needs, they dug a canal connecting it to the Blackwater River, a tributary of the Yong River. The docks are inside the granary, and boats enter through a water gate. All its wastewater drains into the canal through underground culverts near that gate. The outlets of these culverts are about two li from the granary."
Zhao Wusheng said, "You mean we can slip into the Eastern Luo Granary through the culverts?"
Liang Yinghao nodded.
Zhao Wusheng pointed to the Eastern Luo Granary on the sand table. "Do you know how tall its arrow towers are? The land around the canal is as flat as a plain fit for galloping horses. Never mind one li-they can see every movement within five li perfectly clearly." He knew little about Yu Tianxing, much less trusted him. In his eyes, fighting battles on paper and facing an enemy in the field were as far apart as heaven and earth.
Yu Tianxing said, "That is why we need to divert their attention. We can position three Stone-Throwing Carts on the hills northwest