XuanxuanQijingProblem110/Solution

[Diagram]

Black to play

W4 at B5 is met by cut at a. If White persistently deny Black's life.... (B7 at B1 and W8 recaptures)

[Diagram]

Continued 1

B1 kills White. Now it's a big capturing race....

[Diagram]

Continued 2: ko

B3 at black+circle, W4 connect. Ko is the final answer.


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