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Subject: Re: perpetual check recognition

Author: Uri Blass

Date: 12:52:22 01/30/04

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On January 30, 2004 at 14:29:20, Andreas Herrmann wrote:

>On January 30, 2004 at 13:54:02, Uri Blass wrote:
>
>>On January 30, 2004 at 13:22:45, Andreas Herrmann wrote:
>>
>>>On January 30, 2004 at 12:55:45, Ulrich Tuerke wrote:
>>>
>>>>Andreas, are you also checking for repetitions when you are in quiescence search
>>>>?
>>>>
>>>>Uli
>>>
>>>Hi Uli,
>>>
>>>no i don't, because i search only capture and promotion moves inside the qsearch
>>>and there can't be a repetition. Perhaps i will try to generate also check moves
>>>in quiescence search in the future. Have never tryd it sofar.
>>>
>>>Andreas
>>
>>You still may have repetition before the first capture in the quiescence
>>Do you check for it before calling quiescence?
>>
>>Uri
>
>yes i do, but i think many other engines generate also checking moves inside
>qsearch, and then you can also look for repetition in quiescence.
>
>Andreas

Movei generate checks inside the qsearch so it check for repetitions there.

I simply was trying to explain the bad performance of black bishop so I thought
maybe there is a bug of not checking repetition in the last ply before the
qsearch.

Uri

Uri



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