Author: Graham Laight
Date: 10:35:07 01/03/00
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On January 03, 2000 at 10:43:31, Albert Silver wrote: >>If computers can match players like Short (FIDE 2700 from memory) at active >>chess (roughly G/30), and we know from past studies that computers will rate 80 >>Elo points higher in active chess than they will at tournament time controls >>(source: Selective Search - UK computer chess magazine) > >I probably don't need to say that I do not agree with this at all. And I'm not >just being difficult, I don't. > > Albert Silver Hi Albert, I am OK with you disagreeing with me - but please allow me to put forward some evidence to support my case. Firstly, from where you've made your interjection, I assume that the point that you disagree with is that computers would be expected to score about 80 Elo points higher at active time controls than at tournament time controls. Please correct me if I'm wrong. Now, Selective Search magazine has been published since 1985 (the web site is http://www.elhchess.demon.co.uk/ ). I can't remember when, but in the past, an in-depth study of how different clock settings affect the expected rating of a computer was published. In the current issue (Dec '99 - Jan '00), as they do in every year end issue, they have published summary tables of expectations how different time controls affect the expected outcome. As everyone knows, computers will do relatively better at faster time controls than human players will. Briefly, the results are as follows: Tournament Chess: Normal Active Chess (G/30): +80 Elo Blitz Chess (G/5 or G/10): +200 Elo Selective Search was originally set up with the specific aim in mind of providing more accurate information to chess computer consumers about the strength of the machines, so they take the issue very seriously. At the present time, their highest rating for a chess computer is 2620 (though they state that up to 60 Elo points could be added if one posseses a 500 Mhz PC). I'll leave it at that for now - but if this isn't good enough, I suppose I'm going to have to rummage through my pile of old issues to look for the original article about how these calculations were made. -g >> , then we must be saying >>that right now the computers are about 2620 Elo - which isn't bad (if a little >>lower than the 2664 - 2674 that SSDF seem to be saying Tiger can achieve). >> >>-g
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