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Subject: Re: Problem with extending to maxdepth

Author: Uri Blass

Date: 06:04:59 06/26/03

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On June 26, 2003 at 08:46:13, Martin Bauer wrote:

>On June 26, 2003 at 08:11:23, Albert Bertilsson wrote:
>
>>Previously I've used check-extensions, and now I added single-reply extensions.
>>This has given me some problems because it seems that the engine tries to extend
>>to much now! Some positions are just searched to very few plies. I guess it has
>>to do with one side only having one move to do (single-reply) and the other side
>>constantly checking, and this makes the search go deep immediatly and not
>>returning until searching to max depth or getting 3-fold repetition.
>>
>>I've solved this temporarily by only allowing to extend at most Depth plies, so
>>when searching to ply 6 maximum search depth should be 12 plies. Anybody have a
>>better idea?
>
>I think the maximum number of extensions should be limited. I limit to an fix
>number (7) independent of the depth, but your idea sound logical, too.

I do not limit extensions in movei.
I do not like that idea and I prefer to get bugger depth by adding pruning.

Uri



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