Author: Tony Werten
Date: 12:37:34 01/13/02
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On January 13, 2002 at 15:03:59, David Rasmussen wrote: >On January 13, 2002 at 14:10:06, Tony Werten wrote: > >>On January 13, 2002 at 10:27:46, David Rasmussen wrote: >> >>>On January 12, 2002 at 12:31:04, Tony Werten wrote: >>> >>>> >>>> >>>>You do realise that your total extensions can be close to 2 ? (Depending on the >>>>value of ONE_REPLY_EXTENSION.) >>>> >>> >>>Yes, as we talked about elsewhere in the thread. I don't know how else to use >>>one_reply extension. I limit extensions to one ply at each ply, so when >>>one_reply is applied, so will check_extension and so this will give (for my >>>current values) 1.0+0.75=1.75 limited to one = 1.0, so the one reply extension >>>wont have any effect at all. >> >>Not really. Your code suggests that you first limit it to 1 ply and then you add >>one_reply_extension. That would mean 1.75 extension wich could explode. >> >>Tony >> > >Sorry, I was being unclear. I meant _if_ I did the limiting after the one reply >extension is applied, the extension wouldn't have any effect. As it is now, yes, >the extensions can be 1.75 given the right conditions. That means that if you're searching with a checkmatescore, your opponent will throw in all pieces since that will have a bad value but never as bad as being ceckmated. Normally (ie with normal values for alfa/beta) these would be cutoff. I think it's the reason for your explosion. Tony > >/David
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