East-West Emperor Diplomatic Probe / 东西二帝试探

East-West emperor diplomatic probe / 东西二帝试探 names the title gambit in 《资治通鉴·周纪》68丨惊叹宋康王荒淫无度的狗血历史（1）. 秦昭襄王 wants to move beyond the now-common “king” title, so he proposes himself as western emperor while honoring 齐湣王 as eastern emperor.

The title looks balanced, but the episode treats it as asymmetric risk. Qin is testing whether the interstate world will tolerate a higher rank, while Qi would be pulled into the reputational and coalition cost of Qin’s status experiment. 苏代 therefore advises Qi Min Wang to accept verbally if needed, observe the reaction, then abandon the title and preserve Qi’s freedom to pursue 宋国.

The concept differs from 尊号式投降方案. In the later 邯郸 siege branch, honoring Qin as western emperor becomes a crisis appeasement route from a weaker position. Here, the title is a peer-looking diplomatic probe between two strong states, and the crucial move is Su Dai’s refusal to let empty status distract Qi from material gain.

Key Claims

• Status innovation can be a diplomatic test before a hierarchy is actually accepted.
• Pairing another great power with Qin makes the title look less unilateral, but also spreads the political risk.
• Verbal acceptance and actual title use can be separated as a defensive tactic.
• Empty honorifics are dangerous when they make a state share another state’s legitimacy burden.
• Qi’s rejection shows that title politics can be subordinated to concrete territorial strategy.
• Qin’s later cancellation of the emperor title shows that status experiments need coalition tolerance, not only ruler desire.

Connections

• 秦昭襄王 and 齐湣王 - proposed western/eastern emperor pairing.
• 苏代 - strategist who turns the proposal into a risk-shifting problem.
• 燕昭王, 赵国, and 合纵 - anti-Zhao and anti-Qin balance context.
• 宋国, 陶 / 定陶, and 道德化战争借口 - material objective that makes the title expendable.
• 连横 and 纵横家外交 - broader Warring States diplomatic field.
• 尊号式投降方案, 准天子式秦霸权, and 帝国符号标准化 - later and stronger forms of Qin status elevation.