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Up Topic Rybka Support & Discussion / Rybka Discussion / Man vs Machine -very long TC ?
- - By saxon (**) [hr] Date 2008-05-05 11:50
It's known that thing of a high importance for  performance of humans against chess engines is time per move factor.Established is that in classical time controls 120/40 ,a chess player tend to score more points than in rapid chess,and in rapid chess  more than in blitz.
But there must be a limit somewhere where tiredness and fatigue of human takes a tool,and performance degrades.
However,not all humans are the same ,and psychophysically a super prepared chess player,like Leko, might be even better in say 180/40 game vs engines than in 120/40 conditions.Althought,it seems to me that 120/40 is kind of optimal rate ,I don't know of any experiments where GMs played computers at 150/40 or 180/40 TCs.Several years back, Kasparov,and some other top players ,energically protested when FIDE tried introducing 90/40 TCs ,as a new standard for time control.His arguments were that would significantly degrade quality of games,and favour younger players more flexible to the changes.I only agree with second part of his opinion.
Nevertheless ,I am still wondering what time control and format would be of more benefit to certain top GMs when facing computers.
Here of course,I exclude correspondence chess formats.   
Parent - - By lkaufman (*****) Date 2008-05-05 14:17
I'm sure that longer time controls, like 40/3 hours instead of 2 hours, would favor humans against computers, but only by something like 30 Elo points or so, which is only about 10% of the gap between the top humans and the top engine. Evidence suggests that humans get about twice the benefit of longer thinking time compared to engines. A 50% increase in thinking time adds maybe 30-40 Elo points to an engine, and so if it adds double that amount to a human the net gain (if both get the increased time) for the human would be 30-40 Elo. But this must be diminished by the fatigue factor in such a long game.
Parent - By Roland Rösler (****) [de] Date 2008-05-05 15:24
First match in chess history with time control was played 1861 between Anderssen and von Kolisch. Time control was 120/24 (stopped per sandglass!). Before this time, chess games without time control take averaged 9 hours (such as the match Staunton vs. Saint Amant (1843)). For top GM tooday, I see no problems to play a 10 (or 12) hours game concentrated (like 180/40 + 120 rest). But I also think, it wouldn´t really help the human to win the match against a good engine on good hardware.
Parent - By Vasik Rajlich (Silver) [hu] Date 2008-05-05 22:30
Humans tend to be good at what they train for.

You give Leko 180/40 instead of 120/40 and he just might play worse.

Vas
Up Topic Rybka Support & Discussion / Rybka Discussion / Man vs Machine -very long TC ?

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