Black to play  

This problem is Kim In's book version.

/Attempts?
/Solution

White to play  

A slightly different version is in Go Seigen's book. Although White is to play first, White cannot live because the solution is identical to the above one.

Here is Go Seigen's explanation about the title:
When Cui Zhu(崔杼) had killed Zhuang Gong(莊公), Shen Kuai(申噲) ran to Cui Zhu. However, Cui Zhu rejected to open gate for fear of revenge. Then, Shen kuai said "Do you suspect me?" and cut his own left arm. With relief, Cui Zhu opened the gate. Shen kuai entered and fought with his remained right arm.