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Subject: Re: Does any Program Play Rd3?

Author: Peter McKenzie

Date: 21:53:30 12/07/04

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On December 08, 2004 at 00:10:14, Joshua Lee wrote:

>Ofcourse the other moves aren't bad every program says this but i wonder why
>Rac8 is prefered over the move played?
>
>I don't know how the programs assess the position so i don't know why they like
>that move so much
>
>Then again it is hard i guess to explain how after Rd3 Nd4 Qe7 NxN BxN that even
>though you've traded pieces it is better for black than Rac8 to begin with

hard to prove it too :-)

>
>
>Why prefer Rac8 over Domination of the D-File and soon the Second rank with it
>with a winning game

Perhaps because that 'domination' doesn't actually lead to much with best
defence?  The lines (Rfd1 instead of Rc5) I gave in my previous post don't seem
to lead to any invasion on the 2nd rank.

>
>i need to look at "Why" the programs like Rac8
>what's the follow up   whats so great with Rac8 to make it Numerically better
>than Rd3
>
>I did notice that After Rd3 and Qc2 for instance Qe7 was not in the Lines given
>by any program
>
>I'm just a 1635 rated player i'm no Byrne (2470) but it's not the first time a
>computer has taken over an hour to pick a move that was probably played within a
>couple of minutes over the board

Sure, and it wouldn't be the first time a computer has found a move as good as
if not better than a GMs move.

It may be that Rd3 is clearly the best move here but I haven't seen conclusive
evidence as  yet.

cheers,
Peter



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