Author: Robert Hyatt
Date: 16:08:23 01/25/01
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On January 25, 2001 at 17:23:25, Georg v. Zimmermann wrote: > >>recapture is the most interesting case. It actually appears that removing >>this _completely_ gave the best score, which is surprising since >>win at chess is a tactical suite. Lowering this extension obviously >>speeds up the overall search. I currently use .75 here as well. >> >>The most interesting thing is the recapture extension. I have used it forever, >>and took the idea from Cray Blitz since I used it there as well. I am not yet >>sure why it actually hurts since it seems (to me) to be a logical idea. I am >>going to test this more, just for my own interest. > >That test was very interesting, thank you. > >I changed a small part in the recap routine of crafty to what my program >(crazyhouse only not normal chess) does, and maybe it works well in Crafty too. >On my k6/400 at st 10 the modified crafty got 290/300 positions right at WAC >compared to 288. This of course doesn't mean much at all. > >Your test (outputing solution time) seemed but more precise , so maybe you can >give me instructions on how to run it. Or would you be willing to test my >modifications if I mail them to you ? Best would be if someone was willing to >run 500 test games with both versions :). > >Regards, > >Georg v. Zimmermann I can certainly test if you can simply send a complete "search.c" file for me to replace mine by.
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