Correct
欲擒故纵
/ yù qín gù zòng /
Strokes
Definition
In order to capture, one must let loose./to loosen the reins only to grasp them better
Example
Definition
leave sb at large in order to apprehend him afterwards; let the enemy leave in order to catch him; allow sb some latitude first to gain a tighter hold on him afterwards; give sb rope enough to hang himself; play cat and mouse with sb