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Subject: Re: 44 seconds.... (was: Another tough one ...)

Author: Jeroen van Dorp

Date: 14:06:55 12/21/00

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On December 21, 2000 at 16:03:09, Uri Blass wrote:

>The question is if it can win with Rxh2.

That's a valid question.
Remeber however it wasn't the question "will black win with this move" but "will
black *find* the move", and it did;
If Rxh2 loses badly it can also be an indication of extremely bad calculating.

If. If.

>If it find Rxh2 but is losing with this move against other programs then I do
>not consider it as a solution.

That remark is bungling in the air a bit.

What would be the reason for that? That statement is more speculative than the
one made in the original post. What is relevance of the remark? That goes for
anything: if the shoepolish machine starts polishing your shoes, but stops in
between, your shoes won't be polished and I won't consider it a shoe polish
machine.
But *why* should the shoe polish machine doesn't do it's work properly? Is there
any indication the shoe polish machine will stop, without seeing it working -and
failing- a lot of cycles?

Based on the way a chess engine works -including CS Tal II- the chances any
chess program finding a winning move and winning with it are bigger than the
chances it finds a (*any*) winning move and still loses.
A winning move is in most cases the beginning of a tactical sequence and no
doubt an engine will calculate that right with greater chance than failing along
the way;

Anyhow, regardless of your own ideas about it, my message simply stated CS Tal
found the move asked for in 44 seconds, what no other engine did so far.

Jeroen ;-}



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