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Subject: Re: new Arasan test suite

Author: Dieter Buerssner

Date: 17:38:26 12/11/00

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Sorry for the second followup on this post.

There are two positions, that neither I nor my chessengine understand.
Would you (or anybody else) mind to show me the idea behind these postions?

The first one is

[D] 1k6/p1pr3r/Qpn1p2p/3nPpp1/P1NP4/1qP5/3B1PPP/2R1RK2 b - -

The target was to find Nd8. Yace has very close scores for Nd8 and Rd8.
Can you show to a chess Patzer, why Nd8 is clearly better?

My second problem position is

[D] r2n3r/pb1qn1kB/1p2p1p1/3pP1N1/P1pP2P1/2P4R/1QPB1PK1/R7 w - -

Target was to find either Qc1 or Qb1. After 10 minutes, Yace still prefers Qb4
(and the score is very similar - about +1 pawn - to the score after Qc1 or Qb1).
Can you please explain, why the target moves are clearly better?

With best regards,
Dieter







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