Re: [gnugo-devel] interesting problem

[Gunnar Farnebäck]

Terry McIntyre wrote:
> I found a problem which gnugo 3.7.11 fails to solve; it requires
> setting up a cute little snapback.
>
> Both the problem and the solution are attached.
>
> I tried both
>
> --decide-semeai d1/g3 prob5.sgf -o result.sgf
> and
> --decide-dragon d1 prob5.sgf -o result.sgf
>
> Any ideas on how to improve the semeai/dragon routines?

An owl defense pattern like this maybe?

Pattern D235

??XXO        squeeze for some extra eyespace
oO.*x
?....
-----

:8,-,value(67)

??BBO
oa.*x
?....
-----

;owl_goal_dragon(a) && lib(B) == 2

/Gunnar