BeginnerExercise235/Solution

Sub-page of BeginnerExercise235
[Diagram]

black lives

zinger If black goes first, he obviously lives, so the question is what happens if white starts. If W1, B2 makes a and b miai, so black lives.

[Diagram]

seki?

So that only leaves W1. Black lives in seki up to B6. So it seems black is alive.

ProtoDeuteric: B4 and W5 are also miai. If they were switched, B6 would connect black at the top insead of the bottom.

Bill:

[Diagram]

White kills

If White plays first, you cannot assume that White will get one and Black the other, since White kills. (W2 would also kill.)

But as ProtoDeuteric points out, if Black plays first, if he plays B1 White will play W2, and vice versa, for sente seki.



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