峣关 / Yaoguan

峣关 / Yaoguan enters the wiki through Qinji 138 part 2 as the pass 子婴 tries to reinforce after killing 赵高. The episode locates it around southeast 蓝田, making it the defensive line that follows 武关 in 刘邦’s approach toward Qin’s heartland.

The Yaoguan episode is not only a battle notice. 张良 tells Liu Bang not to underestimate Qin troops, advises flags on nearby mountains, and sends 郦食其 and 陆贾 to persuade Qin generals. When the generals consider peace, Zhang Liang warns that their soldiers may not obey a private surrender, so Liu Bang bypasses the pass and attacks while Qin is relaxed.

Key Claims

• Yaoguan is the pass Ziying tries to defend after Zhao Gao’s death, but the defensive move comes too late to restore Qin’s position.
• The source ties Yaoguan to a hybrid method: visual deception, surrender persuasion, and attack timing.
• Zhang Liang treats negotiations as militarily useful but politically uncertain because commanders and soldiers may not have the same willingness to defect.

Connections

• 子婴, 秦国, and 赵高 - post-coup Qin setting before the pass defense.
• 刘邦, 张良, 郦食其, and 陆贾 - attackers and persuaders.
• 武关 and 蓝田 - route context before and after Yaoguan.
• 招降示范级联 - persuasion mechanism tested at the pass.