Author: Mike Hood
Date: 07:14:36 05/05/05
Go up one level in this thread
On May 05, 2005 at 08:04:37, Uri Blass wrote: >On May 05, 2005 at 06:01:02, Mike Hood wrote: > >>On May 04, 2005 at 11:16:55, Uri Blass wrote: >> >>>On May 04, 2005 at 09:09:25, Robert Hollay wrote: >>> >>>> I'd like to download some freeware engines, which are weaker >>>>by default (say 1200-1600 ELO), with WB or UCI interfaces, but have >>>>an interesting or "human-like" playing style. >>>> Yes, there is a plenty of links to free engines on chess sites, >>>>but I have small bandwith, so cannot download and try out each ... >>>> >>>>Thanks in advance for any help or suggestion! >>>> >>>>Robert >>> >>>Why do you need weak by default? >>> >>>It is possible to change the personality of Movei to make it weak. >>>I guess that if you change the piece square table of Movei to tell it that a >>>queen is less than a pawn and that knights have negative value it will do the >>>trick(I never tried it but people who are interested in doing it can do it). >>> >>>Uri >> >>Uri, the question is "How can I make an engine beatable without making it play >>stupid?" There are a few answers to this question: >> >>1) Write an engine which has a weak evaluation algorithm, for instance by not >>giving it much positional information. (I think this is what Robert was looking >>for). >> >>2) Make slight changes to piece values. For instance, change a Knight's value to >>2 (instead of 3) to encourage the computer to make spectacular looking but often >>unsuccessful sacrifice exchanges. Changing a Queen's value from 9 to less than 1 >>would be too drastic. > >considering the fact that you talk about weak level of 1200-1600 I think that >changing the queen value to less than 1 may not be too drastic. > >I guess that players with rating of 1200 may lose even if they get queen for >knight advantage if they face good defence and a computer that does good search >will not give them an easy way. > >Uri You may be right about 1200. It is very low. My own rating is between 1500 and 1600, so I appreciate weak but not stupid play. I like an opponent that I can beat, but I have to work hard to do it.
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