Re: [gnugo-devel] games against 3.3.16

[SP LEE]

> SP Lee wrote:
> > You are right. The J pattern set the minimum value of this move to 35.
> > I would modify the move valuation in this case, thus if a dragon is in
> > critical condition, trust OWL analysis instead of the Joseki moves
> > unless OWL analysis doesn't have any result.
> 
> I don't think this is a feasible approach. Which dragons should we
> care about? How large do they have to be? Joseki moves are usually
> joseki for a reason, e.g. sacrificing some stones in exchange for
> outside influence.
> 
> The proper solution is to revise or remove bogus joseki patterns. It
> is valuable to know that the pattern databases have evolved over a
> long time and some patterns are remnants from a time when the GNU Go
> engine in all ways was much more crude than it is today. While a
> pattern like EJ61 may have been necessary at some time I'm fully
> convinced that GNU Go today can find and properly evaluate such moves
> by other means. After removing EJ61, N18 in this position is valued
> -0.84, which seems about right.
> 
> /Gunnar
> 
> 

Good. I hope gnugo can find this Joseki by other means in other cases. Actually 
there are 7 choices after hane (*) near the edge. 

O.XO?
?X*ef
?abcd

Of course, the most often used moves are e,f and c. Just hope gnugo can see all 
the possibilities.

SP Lee