Door Group Exercise 2 / Solution

Sub-page of DoorGroupExercise2

Solution

[Diagram]

Black is dead

With no Black stone at both a and b, the Black group dies. After B6, since White can always occupy one of a and b, Black is unable to get a seki.



Failure

[Diagram]

Mistake

A common mistake is to assume that W2 will be played as shown in this diagram. In this case, B3 and B5 lives because White cannot connect at a.


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