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Subject: Re: Does crafty stop calculating SEE after capturing a king?

Author: Uri Blass

Date: 15:51:22 01/12/04

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On January 12, 2004 at 17:47:07, Robert Hyatt wrote:

>On January 12, 2004 at 17:34:52, Uri Blass wrote:
>
>>I do not see when it happens in crafty and note that it is not only a question
>>of speed when it is not clear what is faster and if I understand correctly
>>crafty may be wrong when a sequence of captures that is finished in trading
>>kings happens and it may happen in the endgames.
>>
>>[D]8/5r2/5k2/3R1p2/5K2/8/8/8 w - - 0 1
>>
>>Rxf5+ is a good capture but based on SEE that let trading kings it can be
>>pruned.
>>
>>Uri
>
>No.  It is not very frequent and doing the test will burn more time than
>avoiding the test saves, since the occurrence is so tiny.  I simply ignore
>it totally...

I am not sure about the speed part.

Doing the test is only adding one if

I guess that it saves time in every case that capturing the king is done and not
only in cases of trading kings because you do not need to search for captures
after capturing the king.

Uri



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