Author: Dieter Buerssner
Date: 15:35:30 05/04/04
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On May 04, 2004 at 10:39:12, Tord Romstad wrote: >Not really. The only thing you test with this kind of artificial position is >whether the engine has checks in the qsearch. Perhaps, perhaps not only. Yace does not use checks in qsearch (at least not by default) and will find it. But needs longer, 30 seconds. I have until now only tried checks in first level qsearch (not in remaining levels). I tested soem variations - like using check in qsearch only when directly coming form null move, always, and few more. I never saw a significant difference (besides in test positions, some are solved many plies earlier with checking moves in the first call to qsearch). I always handle checking moves that capture in first qsearch level somewhat more careful. What I wanted to say - just extending many checking moves in a row aggressively should help to solve such a position. No special qsearch will be needed then. No doubt, checks in qsearch will also help. Cheers, Dieter
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