Author: blass uri
Date: 20:24:13 05/15/00
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On May 15, 2000 at 22:43:00, Robert Hyatt wrote: >On May 14, 2000 at 18:09:20, Pete R. wrote: > >>On May 14, 2000 at 08:54:35, Jürgen Hartmann wrote: >> >>>On May 14, 2000 at 08:44:57, Jürgen Hartmann wrote: >>> >>>>and ...b5 is a possibility for counter play. Frans Morsch will certainly sweat >>>>blood and tears at the moment. Small consolation that all other chess programs >>>>behave in the same way. >>> >>>Correction: Crafty 17.10/CB plays 13... exf4!, the only chance to avoid the >>>death sentence. >> >>Well, according to comments from Dr. Hyatt, pawn structure evaluation seems to >>be his major tuning focus for Crafty these days. Clearly this is a worthwhile >>goal, since computers are already top notch at tactics. But the consequences of >>pawn moves are often far too deep for tactical evaluation, so things like this >>have to be caught in the positional evaluation. A program *should* be able to >>"see", just as a human can, that white has a great pawn structure and will >>continue to annex space if f5 is allowed. Not easy to program I suppose. > > >Not easy... not impossible... > >Very important against these guys... In this case you simply can't allow >the e4-f5 pawn chain to happen. The center becomes locked, white has all >the space on the kingside, and black is constrained to live in a small shoe- >box and wait for jack-the-ripper to show up... It will be interesting if there is some statistics about the results in the same pawn structure after f5. In how many games the same pawn structure happened and how many games out of it white won. Uri
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