"Secretly Crossing at Chencang" originates from the Records of the Grand Historian: Basic Annals of Emperor Gaozu. It originally refers to the period of the Chu-Han Contention, when Liu Bang, in order to deceive Xiang Yu, ostensibly repaired the plank road while secretly launching a surprise attack through the ancient Chencang route, ultimately pacifying the Three Qin regions. The core meaning of this idiom is: under the cover of public action or a frontal feint, secretly carrying out another key operation to achieve a surprise effect. It emphasizes strategy and concealment, and is often used in military affairs, business competition, negotiations, or everyday dealings to describe a stratagem of presenting one thing on the surface while doing another behind the scenes. Culturally, it embodies the wisdom of ancient Chinese military strategists in "displaying forms to move the enemy" and "the mutual generation of the orthodox and the unconventional." Its emotional tone is neutral, and it can be used either to praise clever strategy or to criticize deceitfulness. When using it, attention should be paid to context to avoid confusing it with "making a feint to the east while attacking in the west," as the latter emphasizes diverting attention, whereas "secretly crossing at Chencang" places greater emphasis on the covert action itself.
📝 Example
1. On the surface, the company announced it would focus on the low-end market, but it was secretly developing high-end chips under the cover of a feint, eventually seizing the industry's leading position.
2. During the negotiations, he deliberately haggled endlessly over the price as a diversion, while sending his assistant to reach an exclusive cooperation agreement with the other party's technical department.