Joining the Police Force, Solving a Major Dismemberment Case from the Beginning.

Summary

Summary: Han Xu and Old Dog Wu discover the mechanism of the 9th Son Yuan Yang Linked Ring by applying the principle of Nine Linked Rings, a traditional Chinese puzzle toy. After a meal prepared by Li Le, they discuss the lock's complex interlocking structure. With their combined expertise, they successfully unravel the mechanism, revealing its intricate design that involves two sets of 9-link puzzles locked onto a single core. The breakthrough comes from understanding the historical puzzle toy's principles and applying them to this challenging lock.

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