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Subject: Re: Kasparov vs Deep Blue, DIEP not as bad as DeepBlue

Author: Jeremiah Penery

Date: 01:27:42 10/31/01

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On October 31, 2001 at 01:47:08, Uri Blass wrote:

>On October 30, 2001 at 20:36:49, Dann Corbit wrote:
>
>>Why take a risk when you don't have to?
>
>not using null move pruning is taking a risk.
>
>null move pruning does not mean playing unsound moves when the time to calculate
>is not important because it is possible to use zunzwang detection.
>
>Some programs like yace already do it.

Zugzwang is not the only danger in using null-move.  Null-move also works to
hide lines that contain material sacrifices.  Against Kasparov, that could be
really dangerous.



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