Author: Bo Persson
Date: 08:39:45 06/04/00
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On June 03, 2000 at 12:49:03, Albert Silver wrote: >On June 03, 2000 at 10:41:58, blass uri wrote: > >>My observation is that programmers did not try to teach program some rules >>about endgames(for example about the fact that KRPPP vs KRPP is almost always a >>draw when all pawns are on the same side). > >That's less than obvious you know. Perhaps this position, but you'd be surprised >at what can be won at times. Check out Korchnoi's book on endgames to see some >of the positions he managed to win. Impressive technique. > >> >> >>I know no program that knows that this position is probably a draw(evaluation of >>less than 0.5 pawns advantage for white): >> >>[D]5rk1/6pp/8/8/8/8/5PPP/5RK1 w - - 0 1 >> >>I am interested to know if there is a programmer who try to teach his(her) >>program as much as possible about endgames by teaching it rules from chess books >>without caring about nps and about being better in games. >> >>Uri > >What rules would you suggest? There are some obvious ones, but there are also >very disputable ones that have too many exceptions to be of much use, other than >to a human player. I know that many of the program have the more obvious ones >such as the advantage of rook and bishop vs. rook and knight, or bishop vs. >knight in pawn endings with pawns on both wings, BUT knight over bishop if the >pawns or connected on the same wing, etc... What other rules though? Most >positions admit too many exceptions for to be of much use, and really just have >to be played out. > > Albert Silver Don't worry about the rules. This will be solved anyway, once we get to the 9-piece tablebases. :-) Bo Persson bop@malmo.mail.telia.com
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