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Subject: Re: How can I escape from check in Qsearch?

Author: Tony Werten

Date: 07:44:20 05/04/05

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On May 03, 2005 at 13:51:35, Kevin K wrote:

>    quiesce(int alpha, int beta) {
>        int score = eval();
>        if (score >= beta) return score;
>        for (each capturing move m) {
>            make move m;
>            score = -quiesce(-beta,-alpha);
>            unmake move m;
>            if (score >= alpha) {
>                alpha = score;
>                if (score >= beta) break;
>            }
>        }
>        return score;
>    }
>I found this from http://www.ics.uci.edu/~eppstein/180a/990204.html
>But there is no code which takes care of escaping from check.
>Where do I have to put code which handles escaping from check in Qsearch?

This sourcecode is wrong: The score of the last move will be returned, not the
score of the best move. (for failsoft)

Or (for fail hard) the last line has to read: return(alpha);

Tony




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