Author: James T. Walker
Date: 09:03:32 11/30/98
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On November 29, 1998 at 22:29:04, odell hall wrote: > >On November 29, 1998 at 21:46:41, James T. Walker wrote: > >>On November 29, 1998 at 20:54:10, Mark Young wrote: >> >>>On November 29, 1998 at 20:21:50, odell hall wrote: >>> >>>>Hi CCC >>>> >>>> >>>> I recently completed a six game match between Chessmaster 4000 running on a >>>>pent 233 16meb and a USCF 2280 rated master. The games were played at a time >>>>control of Game in 60. Chessmaster won the match Convincingly with a score of 4 >>>>1/2 to 1 1/2. What type of rating would this give chessmaster based on this >>>>match alone? >>> >>> >>>USCF rating of 2434 >> >>Hello, >>Actually the USCF uses a simple formula for unrated players to get to a >>TPR(Tournament Performance Rating). It is OpR+(W-L)*400 / N. Example: >>4.5-1.5=3*400=1200 divided by 6=200 + Opponents average rating(2280)=2480 >> >>This is a little low I think for CM4000 on that hardware. Perhaps you did not >>give it any extra ram for hash tables. >>Jim Walker > >Actually I was not aware that you could adjust the Hash tables for Chessmaster >4000. I only have 16 megs of ram on my system. Anyway I thought it was a pretty >good result against a human 2280!! Remember this is not Chessmaster 5000 or 6000 >but one step up from 3000!! Actually I was not aware you could adjust the hash for 5000/5500 until I got on this site about 2 months ago. The default for CM4000 is "19" which I think is only half a meg. The default for CM5500 is "20" which I was told is 1 meg. I have set the CM4000 to 26 which is supposed to be 64 meg and it worked fine. On the position I tested I also tried 8 meg and it more than doubled the speed to 30 plys(2:14 vs 0:53) vs the default of "19". So it can be changed and does make a difference especially in the endgame phase. Jim Walker
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