Computer Chess Club Archives


Search

Terms

Messages

Subject: Re: Diep as a strong sparring opponent (longish)?

Author: Mike Byrne

Date: 17:55:22 10/13/03

Go up one level in this thread


On October 13, 2003 at 19:10:37, Mike Byrne wrote:

>On October 13, 2003 at 14:42:45, Djordje Vidanovic wrote:
>
>>On October 13, 2003 at 14:36:09, Jonas Bylund wrote:
>>
>>>On October 13, 2003 at 14:19:14, Christophe Theron wrote:
>>>
>>>>On October 13, 2003 at 13:09:03, Charles Roberson wrote:
>>>>
>>>>>
>>>>>  You make the statement that Diep is a positional engine and you chose it based
>>>>>on that. So, why did you run G/5 matches? At G/5 tactics and search depth
>>>>>is crucial.
>>>>
>>>>
>>>>
>>>>I would like to bring to your attention that tactics and search depth are
>>>>crucial at any time controls in chess.
>>>>
>>>>Showing dimishing returns from increased search depth is so difficult that in
>>>>practice there is little difference between blitz and long time controls.
>>>>
>>>>If engine A gets a beating at blitz, expect it to get the same beating if you
>>>>repeat the match with long time controls.
>>>>
>>>>
>>>>
>>>>    Christophe
>>>
>>>Now that is not my experience at all, some engines do seem to be much better at
>>>long time controls than at blitz and also the opposite is the case, however it
>>>seems that engines that do better at blitz TC's don't have the same margin of
>>>difference.
>>>
>>>Jonas
>>
>>
>>Jonas,
>>
>>this _is_ an interesting issue, I admit. However, a very quick glance at the top
>>section of the SSDF list will tell you that the best blitzers are up there, and
>>the games played by the SSDF are tournament control games.  I can draw a simple
>>conclusion here.  Naturally, there might be some conspicious exceptions... Could
>>you please name a program that does extremely poorly at blitz and extremely well
>>at longer time controls?
>>
>>Rgds.
>>
>>Djordje
>
>
>I am not sure if the this still true - but my short list of engines that always
>seemed to to better at LTC than blitz (relative to itself):
>
>HIARCS
>GANDALF
>
>The older Shredders might fall into this group as well (Not Shredder 7.0.4 --
>very good in Blitz)
>
>Tiger seems to play equally strong at any TC.
>
>Older Fritzes and Genius (especially) seem to favor fast time controls, weak CPU
>etc.
>
>But a very weak engine at blitz (none of the above) was generally very weak at
>LTC as well.
>
>I also think Dave Kittinger's Wchess engine (used in Novag products and perhaps
>others) does very well in blitz/ weak processor settings - relative to how well
>it will do in a LTC/ fast CPU settings.
>
>As far as analyzing a position where there are no killer combinations available
>(quiet position) - my favorite engines to analyse are (alphabetical order):
>
>HIARCS
>Shredder 7.04
>Tiger
>
>
>For a mate finder - no engine is faster than CM9K with SS==12.  Ruffian is also
>pretty fast.


I would probably add Rebel 12 to the list -- but the latest version does not
work for me in Fritz GUI .....yet.  Edward is working on a fix.



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.