Beginner Exercise 142 / Attempts

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Malweth:

[Diagram]

Wrong answer!

[Diagram]

Right answer? White has a 2 step ko to live.

unkx80: I would say, White's play is sub-optimal. But you are almost there already. =)

Malweth: I see, I think... White would do better to save the E19 group.

[Diagram]

White saves E19 rather than B18


ChrisSchack: I think W4 looks odd in the two-step ko ... why give B the chance to take first?

[Diagram]

Better play?

W need only ignore a single threat to play a, winning the ko. No need to connect to the other side, they're already alive. B has a direct ko, but has to make the first threat.

On second thought, why not take B1, it's extra points...


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