Author: Gerd Isenberg
Date: 13:44:22 10/13/03
Go up one level in this thread
On October 13, 2003 at 15:57:12, Ulrich Tuerke wrote: >On October 13, 2003 at 14:56:57, Gerd Isenberg wrote: > >>On October 13, 2003 at 14:19:14, Christophe Theron wrote: >> >>>On October 13, 2003 at 13:09:03, Charles Roberson wrote: >>> >>>> >>>> You make the statement that Diep is a positional engine and you chose it based >>>>on that. So, why did you run G/5 matches? At G/5 tactics and search depth >>>>is crucial. >>> >>> >>> >>>I would like to bring to your attention that tactics and search depth are >>>crucial at any time controls in chess. >>> >>>Showing dimishing returns from increased search depth is so difficult that in >>>practice there is little difference between blitz and long time controls. >>> >>>If engine A gets a beating at blitz, expect it to get the same beating if you >>>repeat the match with long time controls. >>> >>> >>> >>> Christophe >> >>Christophe, >> >>couldn't it be, that engines have some odd/even sympathy/antipathy? >>If the characteristic line of this property is to be out of phase between two >>programs, i can imagine that one is a better blitzer but the other the better >>medium time player. >> >>And what about fast against slow with "more" or "better" knowledge. At blitz >>time control the the linear speedup (fast/slow) may be more important. But due >>to superior branching factor at sime time the "better" knowledge pays off and >>the match tilts. >> > >Gerd, I think that your questions are more or less of the rhetorical kind. >We all know that these effects exist, remembering for instance the good old >MChess which had been rather weak at Blitz and strong at longer time controls. > Hi Uli, i guess Christophe found some way to achieve a rather continuous performance per time characteristic, in conjunction with fast speed _and_ good, constant branching factor. >IMHO, a result of an engine-engine match like the one mentioned by Djordje isn't >unusual at all. It happens more often than intuition may expect; engine-engine >matches sometimes tend to exaggerate differences in playing level. A better base >is to compare their results against a whole spectrum of opponents. > Yes, for sure. >Greetings, >Uli > >PS do you participate in Leiden ? If so, best wishes ! > Thanks a lot, i'll hope that helps ;-) Cheers, Gerd
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