Author: Jon Dart
Date: 21:49:02 12/11/00
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On December 11, 2000 at 20:38:26, Dieter Buerssner wrote: >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? > As you say, Rd8 appears equally good. Nd8 looks better for a while. Under Crafty Nd8 fails low at ply 13 and the score drops to -1.27. >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). I agree here that Qb4 is ok. At least as far as I have been able to analyze it. As this one seems to have three acceptable solutions, maybe it is not a good test. --Jon
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