[Computer-go] Congratulations to Zen!

Nick Wedd nick at maproom.co.uk
Mon Apr 4 14:02:42 PDT 2011


In message <BANLkTinzxRKxGXg-cAUWiH8BKjz5RBkHKA at mail.gmail.com>, 
Jean-loup Gailly <jloup at gailly.net> writes
>Nick writes:
>
>> After three rounds, there were three players with three wins each,
>> Zen9, valkyria, and Fuego128t. Pachi2's operator realised that it had
>> the wrong opening book loaded, it had been failing to start in the
>> centre when Black. He restarted it with the correct book.
>
>Actually I disabled the book completely. But unfortunately pachi
>continued to systematically start with E6 as black and quickly
>got into unfavorable positions. (I speculate that E5 is better.)

Thank you, I have corrected my report.

Nick

>Magnus writes:
>> Further, I would imagine many jigos could be quite peaceful short
>games
>
>What makes you think that optimal play should be peaceful? I speculate
>that it should often be very complex, full of kos and tenukis, and
>very difficult to understand for humans ("I play here because it gains
>1 point 20 moves later"). Some games might be peaceful, but a perfect
>player can select arbitrarily complex sequences as long as they still
>achieve the perfect result. There are a lot more complex games than
>peaceful games.
>
>Jean-loup
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-- 
Nick Wedd    nick at maproom.co.uk



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