Author: Christophe Theron
Date: 04:01:00 09/06/98
Go up one level in this thread
On September 05, 1998 at 17:20:51, Serge Desmarais wrote:
>On September 05, 1998 at 12:51:26, blass uri wrote:
>
>>
>>On September 05, 1998 at 11:27:53, Thorsten Czub wrote:
>>
>>>hello all,
>>>tiger 11.2 (paderborn-version) has killed tiger 11.5. Ooops. I hope christophe
>>>can stand this, we have a little argument which version is stronger and I prefer
>>>the paderborn version over all...
>>
>>I believe that the programmers can know better which version is better because
>>they have more information(they know the source code of their program when you
>>can see only games)
>>
>>The question is if the reason that tiger11.2 won is the opening or another
>>reason(you or christophe can check it by playing the game with the same opening
>>with opposite colours)
>>
>>Uri
>
>
> I remember that Bob Hyatt said, once, that a programmer should change only
>ONE thing at a time in his program and then test it extensively to see if it is
>better than the previous version. Changing the code could make the program
>stronger in certain situations and weakers in other situations. While testing,
>it is possible that the situations in which the new version could be weaker
>never appeared on the board, leaving the impression that overall, the new
>version is better and stronger. There are several examples of this : is Fritz 4
>stronger than Fritz 3? ; on a Pentium, Rebel 6 looked stronger than Rebel 7,
>etc.
>
>
> So, knowing the code doesn't really help about that.
>
>
>Serge Desmarais
When I ship a new version to testers, I always take care to run matches against
the 2 former versions. I never ship a version that would do worse against the
previous ones.
For example, Chess Tiger 11.5 scores over 65% against both version 11.2 and
11.4.
Of course I also do matches against other top programs.
Christophe
This page took 0 seconds to execute
Last modified: Thu, 15 Apr 21 08:11:13 -0700
Current Computer Chess Club Forums at Talkchess. This site by Sean Mintz.