[Computer-go] Zen blunder in long mirror go game

[Jouni Valkonen]

I think that the main problem was not winning or losing a mirrored game but
the blunder in late endgame by playing suicidal move. Perhaps Zen was
losing the game, so this was the reason for the blunder. But if Zen was
winning, then it was serious bug and it had nothing to do with the
mirroring itself.

      —Jouni
On Jan 17, 2012 2:26 AM, "Aja Huang" <ajahuang at gmail.com> wrote:

> In the last UEC Cup, the Japanese program katsunari played with mirror Go
> strategy against Zen, Fuego and ManyFaces. katsunari lost all three games.
>
> http://jsb.cs.uec.ac.jp/~igo/**eng/result_2nd/Zen-katsunari.**sgf.html<http://jsb.cs.uec.ac.jp/~igo/eng/result_2nd/Zen-katsunari.sgf.html>
> http://jsb.cs.uec.ac.jp/~igo/**eng/result_2nd/katsunari-**Fuego.sgf.html<http://jsb.cs.uec.ac.jp/~igo/eng/result_2nd/katsunari-Fuego.sgf.html>
> http://jsb.cs.uec.ac.jp/~igo/**eng/result_2nd/katsunari-**
> TheManyFacesofGo.sgf.html<http://jsb.cs.uec.ac.jp/~igo/eng/result_2nd/katsunari-TheManyFacesofGo.sgf.html>
>
> Note that Fuego lost the game finally (by filling own territories) because
> I carelessly set the config with Chinese rules.  Anyway, there should be no
> problem for current strong Go programs on mirror Go strategy in "EVEN or
> tournament games".
>
> Aja
>
> -----原始郵件----- From: Yamato
> Sent: Monday, January 16, 2012 5:16 PM
> To: computer-go at dvandva.org
> Subject: Re: [Computer-go] Zen blunder in long mirror go game
>
> (2012/01/17 8:43), Michael Williams wrote:
>
>> If the author looks at it, could you update us?  I'm always curious
>> about how such things happen, especially in a bot as strong as Zen.
>>
>
> Honestly I don't want to spend a lot of time on this type of problem.
>
> --
> Yamato
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