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Subject: Re: 0x88 compared to rot BB

Author: Rémi Coulom

Date: 02:35:23 01/14/03

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On January 13, 2003 at 14:50:37, Dieter Buerssner wrote:

>On January 13, 2003 at 10:34:13, Rémi Coulom wrote:
>
>>Another little trick for attack detection and 0x88: detection of illegal moves
>>and checks are special functions in TCB. When a move is played, the position is
>>assumed to be legal, which gives additional information about the position that
>>can help to improve attack detection on kings. For instance, if the starting
>>square of a normal move by a non-King piece is not aligned with the King, then
>>it is legal. Many of the moves are detected as legal extremely rapidly with this
>>very simple test.
>
>Rémi, I think you missed one precondition to make this work. Namely, the side to
>move must not be in check. Or did I miss something even more clever?
>
>Regards,
>Dieter

Yes, of course. Sorry I wrote that message too rapidly!

Rémi



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