On 17 mai 2012, at 20:39, Aja Huang wrote:

> Hi Rémi,
> 
> Yes, you are right. Case11 is not correct. I have fixed it. Case19 is 
> Hanezeki that might never occur in real games. The purpose of this search is 
> to explore some limitations of current MC Go programs so Martin asked me to 
> design the most difficult seki cases on the earth. Then I just did it.
> 
> As for komi 7.0, thanks for your suggestion. We will discuss it and announce 
> our decision.
> 
> Best regards,
> Aja


You'll find in attachment an interesting case of seki that maybe you don't have 
in your database. The White string in A11 has 3 liberties, but W must not play 
in any of them, because then A8 and A10 are miai for kill. Black can play in 
any of them, but search will not play there, because that would make W 
obviously alive. That position occured in a game that Crazy Stone lost against 
gnugo.

Rémi


Attachment: seki.sgf
Description: Binary data

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