Author: Sune Fischer
Date: 03:18:47 01/12/02
Go up one level in this thread
On January 11, 2002 at 14:12:58, Martin Giepmans wrote: >>>I don't know if I understand your question. >>>How can you reach depth 8 when a mate is found at depth 1 or 2? >>>Doesn't your engine stop in such a case? >>>Even if you want to look for a shorter mate, searching *deeper* is of course >>>useless ... >> >> That's wrong. You can find a mate in 5 at depth 2, but you can't be sure there >>isn't a shorter mate until you finish ply 9, supposed you don't do some risky >>prunning. If you do null move, for example, you may need to search beyond that >>to find a shorter mate. >> >> José C. >> >Ah, what i meant was: searching deeper than the length of the mate-pv. >In this case the pv is 5 ply, so depth 8 is way too much. > >Martin To be honest I'm not sure what he means either, but he must be talking about the rest of the tree, because that branch will end at ply 5. I can't search deeper than the first mate I find, my search simply returns with the mate score, maybe it is somehow connected to the explosion? -S. > > > >>>Anyway, if the search explodes after a mate is found, I guess there must also be >>>something wrong with the hashtable. >>> >>>Martin
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