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Subject: Re: example for my disappointment of Hiarcs8

Author: Mike S.

Date: 04:04:57 05/13/02

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On May 12, 2002 at 22:06:02, John Merlino wrote:

>On May 12, 2002 at 16:14:40, Thomas Lagershausen wrote:
>
>>(...)
>>[D]1r4k1/2qn1pbp/b2p1np1/p1pPp3/PrP1P3/3B1NNP/2QB1PP1/R1R3K1 w - -
>>not 26.Bxb4 ?

>Interesting position. Chessmaster 9000 (PIII-733) also never considers Bxb4,
>nor does it like Ra2. Instead it prefers Bc3 or Qd1 (depending on the time
>control):

I did use a position in the positional part of my old test, which contains a
similar idea:

Liublinsky - Botvinnik, Moskau, 1943
[Pos.Profil-08 (Nielsen-Ratingtest)]

[D]1r1r2k1/2b1qp1p/b1p3p1/p1p1p3/2P1P3/1PN1BP2/P1Q3PP/R2R2K1 b - - 0 1

1...Rd4!

Usually, programs which decide to play 1...Rd4, don't expect White to take the
rook (which would also give Black a protected passer, similar to the position
above).

King 3.12c and Hiarcs 7.32 do not go for Rd4 within 6 minutes on P3/700. I have
best results with Yace 0.99.56 and Fritz 6 light in this position, followed by
Fritz 7.0.0.2 (..6 takes more time), and Crafty 18.1.

Regards,
M.Scheidl



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