Beginner Exercise 283 / Attempts

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[Diagram]

solution?

thanatos13: a and b are miai nothing seems to be wrong thanks to the second eye.

unkx80: Nice try, but not good enough... (hint: you need to show strongest resistance of both players)

thanatos13: indeed, 2 at a would make a ko for life.

[Diagram]

Ko

unkx80: I consider this as one of the two possible solutions for this problem.

Can you find the other solution?

[Diagram]

death

I feel like my pride has been hurt for not seeing this.

unkx80: Sorry, this B1 is even worse. Can you figure out how White can kill unconditionally?

thanatos13: :P noooo!! when thinking i saw the snapback if 3 at 4, 4 at 3.

unkx80: B5 is death in gote, so W6 is not necessary at all.

[Diagram]

2nd solution

This is the same ko, right? (If white 2 one point to the left, black is alive unconditionally with this same black 3).

unkx80: Yes. However, there are material differences in these two sequences to call them the same solution.

[Diagram]

This is a little different:


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