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Subject: Re: Fritz 7.0.0.6 has futility pruning on as default.

Author: David Rasmussen

Date: 03:43:31 01/27/02

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On January 27, 2002 at 06:20:59, Bas Hamstra wrote:

>[D]r2r1bk1/ppqb1ppp/2p1p3/6P1/2PPN3/PB3Q2/1P3P1P/1K1RR3 w - - Nf6!!
>
>Tao solves this in a couple of minutes (I believe 4 minutes to resolve the fail
>high). But with futility pruning turned on it doesn't. I am curious how it

What fail high? I thought that Tao didn't use an aspiration window at the root.
So how can it have a fail high to resolve? Or do you mean elsewhere in the tree,
and then, how do you know that what is taking time is resolving a fail high?

/David



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