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Subject: Re: Opinions? A Crafty experiment...

Author: Sune Fischer

Date: 04:31:17 05/27/04

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On May 26, 2004 at 19:34:48, Dann Corbit wrote:

>On May 26, 2004 at 17:55:25, Uri Blass wrote:
>[snip]
>>people do not expect programs to perform normally in game in 1 second but they
>>expect programs to perform normally in game in 1 minute.
>>
>>bullet is 1 minute per game and not 1 second per game.
>
>Then they have a bad expectation.  Every program makes horrible moves on a slow
>machine at game in one minute.
>
>Even if the machine is fast, most programs will make awful blunders from time to
>time at that time control.

At 1 minte per game you can typicly search for 1-2 sec per move, that's about
6-8 plies for most engines. Like in the good ol' days :)

>The programs that do not crash or even the programs that do not lose on time
>overage will still make really bad choices.

Doesn't really matter, the engine that wins will still be the one making the
fewest mistakes :)

In fact it is often easier to see how the engine evaluates when it's not
supported by a deep search that clouds the picture.

E.g. I found lots of errors where it would play very unsound moves because it
just couldn't see deep enough.
As a not very strong chess player I really need to weaken it like this to stay
on top of things :)

These super rapid games are also great for stress testing, if nothing else.

>I submit that on a 300 MHz machine, there is no program anywhere that plays well
>at G/1
>
>At any rate, the slower the machine and the faster the time control, the more
>silly and absurd the output.
>
>But you already knew that, of course.

As a developer, an important job is to locate weaknesses and to gather
sufficient data.

Long games are not very usefull for either.

-S.



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