Author: Sune Larsson
Date: 00:25:00 09/04/99
Go up one level in this thread
On September 04, 1999 at 02:46:52, Terry Ripple wrote: >On September 04, 1999 at 01:21:20, James Robertson wrote: > >>On September 04, 1999 at 01:03:26, Terry Ripple wrote: >> >>> >>>When i run engine vrs engine matches i set it that each engine plays white and >>>black in each opening, this way it totally makes it more fair! >>> >>>Regards,Terry >> >>I think not. It _will_ skew the results. >> >>For instance, say you pick the King's Indian and make both programs play it. It >>is a very hard opening for a program to play because black accepts a big space >>deficit in return for a kingside attack. Most (all?) programs don't understand >>this and as a result white has a _big_ advantage. So if you play two games >>between two engines, white has a good chance of winning both, even if one engine >>is a lot stronger than the other. Ditto for all Gambits and even a lot of other >>openings that 'seem' equal (and maybe for humans are). >> >>Maybe you pick a very tactical opening, or an opening that revolves around >>kingside attack. Some engines are worse tactically than others, but rely on >>their book to avoid tactical positions. This time, instead of the games being >>skewed in favor of a certain color, they are skewed in favor of a certain >>engine. >> >>My program's book is tailored to its needs, and fits its style. To separate the >>two will result in a _big_ decrease in playing strength. >> >>James >--------- > >Hi James, > I thought about this and i believe that you have a very good point which i >never really thought about! So what you are saying is if engine A should choose >e4 and then engine B chooses d5 (Chosen frequently by CM6000)and it now leads >into the Center Counter which CM6000 likes to play and now the next game i >force engine A with black to play that exact line of the Center Counter, then >this might not be tailored toward its style of play like CM6000 likes! > I thought the top chess engines are "tactical monsters" and that a chess game >is won by 99% tactics! So, are you saying that not all programmers are selecting >their opening books based on this because they programmed a style in to their >program to play more positionaly and choose closed lines of play rather than the >open tactical lines, perhaps because their program is not as strong a tactical >player? > I have been playing a match between Hiarcs 7.32 and Crafty 16.13 (Single CPU) >with a time control of 40/120 + 30/60. The match will randomly select a opening >and then it will play that same opening again with colors reversed. I'am using >the opening book of Hiarcs for both. Now i know that Hiarcs has more position >sense than Crafty but the opening book don't seem to be hindering Crafty in the >least because it's is doing quite well so far in the match. They played a total >of 8 games so far with a score favoring Hiarcs 5 to 3. I know this is not nearly >enough games to make an accurate judgement but it's a start and i'am not a >rating agency trying to prove who's the best but only doing this for the >enjoyment of playing over the games afterward and posting here for others who >might enjoy the games. You can still enjoy some beautiful moves from the engine >matches, even if they aren't optimized for their maximum strength! > >Best regards, >Terry Think you have some good points here,Terry! As for autoplaying - "I'm not a rating agency" - "doing this for the enjoyment of playing over the games afterward." I agree totally! And it´s a nice and entertaining way of widening one's understanding of chess. Regards Sune
This page took 0 seconds to execute
Last modified: Thu, 15 Apr 21 08:11:13 -0700
Current Computer Chess Club Forums at Talkchess. This site by Sean Mintz.