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A comment on Positions chess engines don't understand. Parent comment

Re:Positions chess engines don't understand by why_only_15 on Monday May 17, 2021 @09:54PM (#27190515)
Why did Rybka sacrifice the pawn to avoid the draw if the resulting position was bad? Was its contempt setting really high or something?

Edit: looks like in the video Nakamura says the contempt factor was too high, and later it was changed.

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Re:Positions chess engines don't understand by murat131 on Monday May 17, 2021 @11:16PM (#27190923)
Correct. Rybka believes it has the piece superiority and doesn't consider sacrificing a pawn to be an issue but the only pawn that it can sacrifice opens up that side of the board for black. Nakamura explains a little before the sacrifice that if they exchanged queens it'd be almost certain that Rybka would have to sacrifice that pawn to avoid draw.
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