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Subject: Re: Testposition - Rookending

Author: Pete Galati

Date: 19:01:43 02/25/01

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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.
>
>
>    Christophe

But it'll be in the next version now?

Pete



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