Computer Chess Club Archives


Search

Terms

Messages

Subject: Re: Could we get a Shredder 9.04 upgrade coming out of IPCCC?

Author: Sandro Necchi

Date: 13:38:24 02/27/05

Go up one level in this thread


On February 27, 2005 at 14:18:35, Ernst Walet wrote:

>On February 27, 2005 at 08:09:04, Sandro Necchi wrote:
>
>MAJOR CUT
>
>
>>>OK, I can explain more what happened:
>>
>>the program part handling pieces exchange and pieces sacrifices was removed by
>>accident, so everytime the program was pondering moves involving that was
>>heavely handicapped or nearly blind. The deeper the program searched the bigger
>>the handicap was.
>>See the last game we lost to understand what we were facing and trying to avoid
>>in the openings...as you can see that was a major handicap.
>>In some games the handicap was (to me) of several hundreds of Elo points. In
>>other games more limited.
>>
>>Sandro
>>
>
>Hi Sandro,
>
>First, I sure hope that this rematch will happen, and that Hydra is not going
>the same way as Deep Blue has: beating strong grandmasters and then retire.
>
>Second, are you reffering to the game Shredder-Hydra when you talk about this
>"bug"? If so, can you give an example of a move where this is abvious?

Well, if you check the last gave we lost we gave a bishop for 2 pawns without
enough compensation. Try any Shredder commercial version and none would play
that move.

During my tests I saw pawns gave away without any compensation and so on. That's
why I was worring about what to play to avoid these problems.

Another example is the game against Falcon in the WCCC 2004. The program
overlooked the check and lost a huge amount of time on obvious moves.

Sandro

>
>Kind regards,
>Ernst.



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.