Tsumego From Games 48

    Keywords: Problem

From one of my games. I have no doubt that what happened was not best play from both sides. However, the position looks interesting, and I'd like to know what should have happened.

[Diagram]

White looks vulnerable


[Diagram]

What I tried

My questions are:

  • Is invasion possible?
  • Is B7 right?
  • Where should B9 be?

I tried B9 between B1 and B5, which led to a ko at circle for seki, but lots of things seem to lead to ko at square for life.


See BQM256.

This problem is unsolved.


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