[Bug-gnubg] Re: remote server code fixed I think

[kvandoel]

On Thu, 4 Sep 2003 address@hidden wrote:

> They way I test  it is to set everything to expert  level and do a match
> analysis: all error rates should be 0. As it is with version 1.1343 if I
> play like  that, the  external player makes  "errors", meaning  it's not
> playing at expert level.
>
> I've  tried 3pt  matches like  that,  both with  player 0  and player  1
> external.  The  only errors are  now chequerplay errors. The  errors are
> larger when player 0 is the external.
>
> The  errors are  very small  (rating  equiv.  of  18 (player  0) and  40
> (player 1)), yet they should be exactly 0.

PS. I just ran  another test on 5pt matches and I  noticed that even for
the local player sometimes the error  rate is not 0!  Difference is very
tiny, equiv. of 2 rating points maximum.

This  is  strange  because  a  while  ago when  I  did  my  rating/error
simulations I did a series  of "sanity tests", verifying that my scripts
indeed spitted out  "0" if played and analysed at the  same level and it
always did, so this is a problem recently introduced.

To  me this  suggests  a  rounding problem.  Perhaps  the external  code
suffers from a more severe form of it?

For the external player the errors  of the external are sometimes as big
as 150 rating points equiv.

Hope this helps.

Kees