[Computer-go] Orego 7.08 released

[Petr Baudis]

On Tue, Jan 11, 2011 at 08:45:31AM -0800, terry mcintyre wrote:
> Drake, has your research proved the proverb "Learn Joseki, Lose Three Ranks"?
> 
> I have a theory, based on my own experience with joseki. Knowing the right move 
> is not enough; one must know what to do with the wrong moves also. Joseki often 
> skate at the edge between "good for black" and "good for white", and they also 
> tend to be strongly influenced by conditions such as ladders. 

In Pachi, I'm using joseki sequences that were automatically extracted
from Kogo branches marked as "GOOD VARIATION". The overall efect against
other programs has been mostly neutral, possibly a decrease by very few
elo points.  However, my subjective impression has been that the program
has more success against humans with joseki enabled, and doubtlessly its
play is much more pleasant to watch and play against, so I think it is
worth the tradeoff.

Note that I am not using joseki unconditionally, just as another
heuristic among all the others. So if Pachi does not like the joseki,
it is free to play elsewhere. Sometimes yes, it gets into a sequence that
it ultimately misplays, but it seems not to be the majority of cases.

So, probably a very boring "neutral" rating at least from me. :-)

-- 
				Petr "Pasky" Baudis
Computer science education cannot make an expert programmer any more
than studying brushes and pigment can make an expert painter. --esr