XuanxuanQijingProblem158/Solution

[Diagram]
Black to play  

B3! is the point. W6 is the last effort to get more eyespace.

[Diagram]
a above  

W10 capture at W6, B11 at B7, W12 at W8....this four-move repeating shape is called eternal life.

[Diagram]
b above: ko  
[Diagram]
Variation  

White can't capture at W4.


XuanxuanQijingProblem158/Solution last edited by hnishy on February 8, 2023 - 02:24
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