Author: blass uri
Date: 21:23:26 01/03/99
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On January 03, 1999 at 23:55:45, Robert Hyatt wrote: >On January 03, 1999 at 21:18:11, Leon Stancliff wrote: > >>Bob Hyatt, >> >>I think you could probably answer this question if anyone can. Do you know how >>the rating increases with ply depth. I have seen a figure of 200 points increase >>per ply. I do not believe this would be a constant figure. My Hiarcs 6 will >>normally reach 7 ply and sometimes 8 ply in the middle game. Do you have any >>kind of graph showing what might be expected with each ply increase from 4, 5, >>6, 7, 8 or 9 plies in the middle game. Does the increase in rating decrease as >>one moves to higher levels? In other words, do you get as more increase as you >>move from 7 to 8 than you do from 8 to 9. >> >>If anyone else has information on this topic please feel free to add your >>comments. > >A very hard question. I believe that "dumb" programs get less from another >ply than "smart" programs. At shallow depths, another ply helps _every_ >program avoid/find tactics. At deeper depths, tactics fade out somewhat and >if the program has little positional knowledge, it won't be able to get any- >thing out of the extra plies. A smart program will continue to improve, >however, as it simply finds deeper "plans" to use its positional knowledge. > >How you categorize the various programs would be fun however, as that would >start a small war here. My best guess would be to simply take a common >cpu and run all the programs. In general, the faster the NPS, the "dumber" >the program, since the eval is the best place to pick up speed (IE in Crafty, >I spend over 50% of my time in Evaluate() which is fairly high by today's >standard. Although programs like Hiarcs are probably at 75% or so, while a >program like Fritz is likely at 10% or less.) I do not think that Hiarcs earn more from time I read that Hiarcs7 is good at blitz. If you were right then I would expect hiarcs7 to have better results at tournament time control(relative to blitz) but I did not see it. Hiarcs7 won Junior5 at blitz and lost 6:4 against Junior5 at 40/40 games of enrique. Uri
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