InsideOpponentsTerritoryProblem4/Solution

[Diagram]

White to play


[Diagram]

White gains 2 pts.

W5 connects at black+circle.

Black has 3 pts. of territory and White gets 1 captured stone, for a net local score of 2 for Black. The original count is 4, so White has gained 2 pts.

[Diagram]

Seki

B2 is mistake, allowing White to make seki.


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