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Subject: Re: shredder 8 and weird PVs? (sandro?)

Author: Robert Hyatt

Date: 11:05:58 01/21/04

Go up one level in this thread


On January 20, 2004 at 20:06:43, Sune Fischer wrote:

>On January 20, 2004 at 14:56:19, Robert Hyatt wrote:
>
>>>Particularly big sacrifices can take a while for engines to see, they fail high
>>>10 times faster if you just execute the move so nullmove and other pruning
>>>devices gets a better root window to work with.
>>
>>I rarely use that approach, as it doesn't prove the sacrifice was the best
>>move at the root position if you force the game a few moves down...
>
>This is from a game I played today.
>You can sit and wait for Crafty to "prove" g5!, good luck :)

I know it is a problem.  But I have seen many "proofs" of such moves that
omit a really oddball reply by the opponent, only proving that the variation
seen by the poster is correct beyond that point, but the the original move.


>
>[D]1r3r1k/pppb2pp/2n2q2/4pp2/8/2PP4/PPQNBPPP/R4R1K b - - 0 1
>
>-S.



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