The anonymous town was situated on a plain where there were no tenable defense positions, it could be invaded from all directions. Usually, the offensive party would seal three of the city gates. They would then feign an attack at two doors and conducting a strong attack on one door.
If the defending party fled, it would be pursued by cavalrymen and sustain massive losses.
This was the standard strategy used to deal with an isolated city, but there were sorcerers in the city, so this method wouldn't be so plausible anymore. At the moment, the Qin people were only left with around twenty-thousand troops. If the three-thousand cavalrymen were set aside to chase the fleeing enemies, then only eighteen-thousand troops would be left. Split among the three directions, only six-thousand men would be stationed at each gate.
