[Computer-go] Orego 7.08 released

[Darren Cook]

> Zen uses no opening book for 19x19 (but some joseki knowledge must 
> provided by the patterns acquired from game records)....

Hello Kato-san,
Does Zen use patterns bigger than 3x3 then? (And if so, in the playouts
too, or just in the MCTS tree?)


On the subject of joseki, it seemed Many Faces came off equal or
distinctly worse in the joseki in the games against John Tromp. So, I
think it needs still more joseki knowledge?

By the way, in game 1 John played a move (G15) that was not joseki (F15
is apparently the joseki move). John read the KGS comments between
games, and played the correct move when the same pattern came up in game
2 :-)

Darren


  Yamato once
> tried but made Zen weaker in benchmarks, possibly due to a mismatching 
> of the playing style.
> 
> Hideki
> 
>> This is the same with the situations of human learning. When a player is 
>> weaker than 1d, joseki is not so important, because if he is leading 10 
>> points in the opening stage, the game might be reversed by losing 20 points 
>> in an easy semeai of middle game. But, when a player is improved to 1d or 
>> 2d, joseki starts to make sense, since his reading ability makes the "semeai 
>> big loss" much
>> fewer.
>>
>> For me, I can't imagine to beat a 6d player without joseki knowledge. When I 
>> lose 10 points in the opening, that is almost decisive. That's why pros 
>> sometimes resign early and immediately after wrong joseki playing, because 
>> there is no chance to reverse, in their view.
>>
>> The stronger the playing strengh, the more important the opening play. 9x9 
>> Go is exactly a good example for statement. Do you think mfgo, on 9x9, can 
>> beat a strong program, if the first move is played at the first line? :)
>>
>> Aja
>>
>>
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-- 
Darren Cook, Software Researcher/Developer

http://dcook.org/work/ (About me and my work)
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