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Subject: Re: Testposition - Rookending

Author: Uri Blass

Date: 20:31:53 02/25/01

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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.

Did you analyze Rd5 to find that it is a drawing move?

If Rd5 is also winning then this is not a good test position.
I did not analyze the position so I do not know.

I find that a lot of general principles are wrong in practical games.

Here are 2 examples from the last comp tournament.

1)Yace-shredder

[D]3r4/6k1/2P3pp/p4pn1/Pp1P4/1P1R4/K1B4P/8 b - - 0 1

White should not lose by the chess principles that I know because rook and
bishop is better than rook and knight and white has 2 connected passed pawns but
I believe that yace is already lost in this position.

2)Nimzo-gromit

[D]8/8/4B2k/2p5/5p2/3b4/5PP1/6K1 w - - 0 1

Nimzo played 103.g3 following the principle of kapablanca that the pawns ssould
be in squares of different colour than the bishop

White lost after 103...f3 104.Bd5 Be2 105.Kh2 Kg5 106.Kh3 c4 107.g4 Kf4
108.Kh4 Bd3 109.g5 c3 110.Bb3 c2 111.Bxc2 Bxc2 0-1

I prefer 103.f3

Uri



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