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Subject: Re: Chess Genius 7.1 Release - Free Upgrade

Author: Uri Blass

Date: 00:38:08 09/10/03

Go up one level in this thread


On September 10, 2003 at 03:15:29, Christophe Theron wrote:

>On September 10, 2003 at 00:01:19, Mike Byrne wrote:
>
>>On September 09, 2003 at 23:25:59, Christophe Theron wrote:
>>
>>>On September 09, 2003 at 20:47:19, Mike Byrne wrote:
>>>
>>>>http://www.chessgenius.com/pc/
>>>>
>>>>New features of version 7.1
>>>>Improved graphics:
>>>>Better support for high resolution displays.
>>>>Addition piece sets.
>>>>
>>>>Author: Richard Lang, one of the great Chess Programmers from the early years.
>>>>
>>>>I currently have Chess Genius 3 installed on my Win2K machine thanks to this
>>>>link.
>>>>
>>>>webpage
>>>>http://www.gambitchess.com/progr.htm
>>>>
>>>>direct link
>>>>http://www.gambitchess.com/pub/cg3dos.zip
>>>>
>>>>Although I  am registered use Chess Genius 3, my disk has gone bad a long time
>>>>ago.  I believe Chess Genius 3 will still do reasonanbly well against many of
>>>>the top programs today on equal hardware at fast time controls.
>>>
>>>
>>>
>>>No I'm sorry, it always loses with a significant margin. Even if you play
>>>bullet. You have to use very slow hardware and fast time controls and you will
>>>indeed see it do "reasonably well". But on todays hardware, even at fast time
>>>controls I would not say that Genius is still competitive.
>>
>>
>>That surprises me -- but if you say so.  At longer time controls does it do
>>better on faster hardware -- or is strictly short tc games on slow  hardware?
>
>
>
>When you use faster hardware (or longer time controls, that's the same), Genius
>is even less competitive.

It is not exactly the same.
There are programs that earn more speed from faster hardware.

Genius was written when the old hardware was used so it is logical to expect it
to be relatively faster in old hardware.

It may be interesting also to compare time for solution in old hardware and in
new hardware.

Maybe you may find that new programs are 10 times faster on the new hardware
when Genius is only 5 times faster.

>
>My own experience.
>
>Chess Genius has a kind of "explosive" power. It will find some combinations in
>0.01s when other programs need 0.5s on modern hardware. But from then it gets
>worse. In general if you expect a modern program to need one minute to find a
>combination, expect Genius to need 2 or more.
>
>I have an idea about the origin of this problem, but I'm not certain.

I think that one problem is that genius(at least genius3) limit its extensions.
selective search cannot be more than 12 plies.

There are cases when you need to extend more than 12 plies in order to solve
hard combinations.

Uri



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