Xuanxuan Qijing Problem 255 / Attempts

[Diagram]

Basic diagram

After W3, a and b are miai. But, B2 is a mistake.

[Diagram]

Challenge

B2 is probably correct. The challenge feels to me to make it a 1-eye 1-eye battle and reach seki.


[Diagram]

Attempt

unkx80: From the above failure, I make an attempt by playing at W1. If B2 at W3, then W3 at B2.

[Diagram]

Continued

Dieter: Looking at the alternative, in what sense is this the solution?

[Diagram]

Continued

tderz: Dieter, what can happen after W5?
a-b-c-d are miai pairs,
if c-d-b, then e.
If only b, then c (or e), if then S for attempting snapback,
capture black E avoids snapback.

[Diagram]

Continued

unkx80: Time to refute myself (and tderz). Subsequently:

  • White a, then Black b.
  • White c, then Black d.

[Diagram]

Another attempt

unkx80: Now I think this W3 should be it.

[Diagram]

Another attempt (W6 at W4)

[Diagram]

Another attempt

tderz: Good work, unkx80! At least I was part of the solution :-)
giving a wrong variation.


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