GokyoShumyoSection3Problem21/Attempts

[Diagram]

xela: I think this works. White has two ways to make ko.

unkx80: White has only one way to make ko.

[Diagram]

mistake by white

xela: Oops, B3 at a and black is unconditionally alive. So W2 is a mistake.

[Diagram]

main line


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