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Subject: Re: Adjusting Alpha / Beta based on Hash table entry?!?

Author: Steve Maughan

Date: 01:34:28 03/19/02

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Ulrich & Tony

>>This means your bestmove will "fail low", and not get recorded as bestmove.

As Ulrich states this isn't really a problem as you just retirn 100 (in your
example) and the PV stops at this node.  The issue that I think you may be
alluding to is that when this move is then stored in the hash table there will
not be a move associated with it as it's a fail low - but there will be from the
previous search.

I've played around with it and the result is that one sometimes gets annoyingly
short PVs.  I still don't like the idea of lowering beta.  I'll tinker some
more,

Thanks,

Steve



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