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Subject: Re: Why is a triangular array needed to store the PV?

Author: Uri Blass

Date: 19:48:46 04/30/02

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On April 29, 2002 at 14:24:04, William H Rogers wrote:

>One of the reasons is that just in case your opponent does not make the expected
>move, then you have another cut-off move to try. The PV stores first you first
>line of moves and counter moves, then it takes your second best move and its
>counters. As the depth of moves grows greater, you are at an advantage if you
>store potential cut-off moves for each variation. Thus the PV grows into a
>triangle as the depth increases.

No

This is not the idea of pv and programs usually have no idea about the second
best move.

Uri



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