Author: Sune Larsson
Date: 00:18:47 02/26/01
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On February 25, 2001 at 21:02:09, Christophe Theron wrote: >On February 25, 2001 at 13:46:32, Sune Larsson wrote: > >> >> [D]8/5p1k/r5pp/P7/3R3P/6P1/5PK1/8 w - - 0 1 >> >> >> 1927 Alekhine won the 34th game in the battle vs Capablanca to become >> World Champion. He did it by playing 1.Ra4! in the above position. >> Black's rook has to block the pawn and white has at his disposal an >> endless reserve of rook moves along the a-file. Again, the future for >> black spells "Zugzwang". The general rule is that a passed pawn should >> be supported by a rook from the rear. That's why ideas of 1.Rd5? are >> wrong. This is a knowledge that have to be implemented in many chessprograms. >> I have seen numerous examples of trying to support such a pawn sideways. >> >> What would your favourite program play? >> >> Sune > > > >My first reaction has been to laugh loud at this one, because I thought I had >introduced this knowledge in Chess Tiger already. > >Then I tried, and I must admit that Tiger wants to play Rd5 all the time (I >stopped after one minute, really angry). > >Grr... > >Now I remember, the knowledge I have introduced is about the position of the >black rook in the above diagram. It's something else. Okey, you had this knowledge for the defender and now you are introducing it for the attacker. Of course there are exceptions, as Uri pointed out, but it might be better to hit the bull's eye 9 times out of 10, than the other way around. Chess is a strange game where, at least for me, it's more difficult to play when there are less pieces on the board. Mistakes are punished severely in the endings. I'm still angry about 2 own narrow losses vs CM8K - 1 double rook ending and 1 knight/bishop vs the bishoppair. Just didn't know where to put the pieces and lost both games on time. The rook ending proved to be drawn but the other one I'm still not sure. Afterwards many endings look easy but when you actually play it's like wandering around in a misty, foggy landscape. Yeah, I guess it's about lack of knowledge and orientation...;) Sune > > > Christophe
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