Re: [Bug-gnubg] Gnu 2ply seems too optimistic

[Massimiliano . Maini]

Mochy wrote:

>Recently I found 3 positions where Gnu 2ply evaluate the
>equity too optimistic.After the rollout or in Snowie evaluation (and
>Rollout) , Those are actually huge pass.
>Not only 2ply, 4ply also make similar mistakes.
>
>I dont know if it is because of new build or not.
>Any comments are welcome.
>
>Here are 3 positions (Position ID / Match ID)
>ZtvAAWBjN4MIDA / cAmgAQAAAAAA
>bFsIOEhxOwcDIA / MAGgAVAAMAAA
>xs7BAURwb4OFAA / MAHgADAAAAAA
>
>Mochizuki Masayuki (mochy)
>address@hidden

Hi Mochy,

as stated by others, a bug has been introduced in some important evaluation
code
affecting evaluation of positions with a player having 2 men on the bar.

I checked your poistions with the latest available source code and they all
are
pass at 2-ply world-class.

I'm currently unable to put a new Win distrib (or just the new executables)
on
the www.gnubg.org site : due to a local network problem, I'm unable to do
anye
external FTP.

I can mail you the new executables (1.2Mb) so you can check they behave "as
expected". Let me know if you're interested.

MaX.