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Subject: Re: Rook ending tourney

Author: John Merlino

Date: 13:17:31 08/22/02

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On August 22, 2002 at 16:06:34, Sune Larsson wrote:

>
> [D]8/1ppr1kp1/p1p4p/8/8/5P2/PPP1RKPP/8 w - - 0 1
>
> Just finished a little tourney from the above position.
> The possible pawn ending is lost for black. So trading
> rooks is a definite no-no. Except in rare cases like
> when white pawns are on f4,g2,h3 and black has played
> pawn to h4.
>
> The following programs participated (in alphabetical order):
>
> Aristarch
> Chess Tiger 14
> Fritz 7
> Junior 7
> Shredder PB
> Yace
>
> 2 games were played vs each opponent (white/black)
> 40 moves in 1 hour - PIII 800 - 64MB hash (96 for Tiger)
>
> 2 programs showed a very solid play and went through the tournament
> without losing a single game. The other 4 programs showed a somewhat
> dubious knowledge about this ending and went for rook trading several
> times. With severe consequences...
>
> A little quiz: In what order would you rank these programs when it
>                comes down to this special rook ending? Which 2 programs
>                could have played this tourney without losing a single game?
>

Here's my guess:

 1. Fritz 7
 2. Shredder PB
 3. Junior 7
 4. Chess Tiger 14
 5. Yace
 6. Aristarch

jm



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