Author: Matthias Gemuh
Date: 13:59:04 01/11/02
Go up one level in this thread
On January 11, 2002 at 15:59:12, Martin Giepmans wrote: >On January 11, 2002 at 15:18:47, David Rasmussen wrote: > >>On January 11, 2002 at 15:12:10, Martin Giepmans wrote: >> >>> >>>It's probably one of those small bugs that are so easy to overlook. >> >>I don't think it's a bug, I think it is an extension problem. But I could be >>wrong. >> > >>>There is a pattern: just before ----- (end of iteration?) the count is >> >>Yep. >> >>>way too high. After that (first move of next iteration) it seems ok again. >> >>They are way too high because of extension problems, I think. >> >>>So first rootmove ok, second and next move probably not. Something wrong >>>with initialising the extension-counter when returning to the root?? >>> >> >>I reset the counters before each iteration. It gives me more information. >> >>/David > >I also don't know if it's a bug. >In my engine I limit the total number of extensions in a line. >If number of extensions>=C I don't extend anymore. >Maybe you could try this (for instance with C=10 or C=15) and see what happens? > >Martin Such should not be necessary, except bug somewhere. I find this "Mate in 4" at ply 5 (+5 extensions = 10 ply). My exts are: check: +1 ply 2 successive checks: +0.6 promo: +1 good recap: +0.5 mate threat: +1 single move: +0.75 and some more less important ones.
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