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Subject: Re: Chess pc program on super computer

Author: Vincent Diepeveen

Date: 04:49:10 08/04/05

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On August 04, 2005 at 07:15:02, Engin Üstün wrote:

>everybody understanding only like this:
>
>if i a am programming a simple engine and run it on a super hardware with 65535
>cores, this will be very strong play.

Just prove you can get it to work at 8 cores first.

>what is about the intelligence of the program? i mean the knowledge of the
>program ?

Well the competition in that respect has been closed already,
as diep has more chessevaluation knowledge than any other program.

That i'm a titled FIDE master didn't hurt of course when programming that
knowledge. This is of course a gap you can never bridge.

Too lazy even to make a parallel engine, let alone chessknowledge.

Now people like to see how it plays all that chessknowledge, so do i.

Right now i'm busy fixing chesspatterns i entered between 1994 and 1998.

They are outdated simply and need to get improved, fixed and retuned to match
the bugfree play that 2005 engines show.

It's a pretty big job to improve all that old evaluation code (just kicking it
out hurts even more by the way, as knowledge DOES work).

>we human are not fast on thinking of position, but we are using our knowledge of
>chess, and thinking selektive moves only very deep.
>the goal is to go programming a better chess engine, and maybe more selektive
>less nodes and with much chess knowledge.

Diep searches at 85k nps at a k7 2.1ghz and it's move generator is worlds
fastest move generator, so that nps is not because of bad programming at all.

Yet i had also in 2001 a dual k7 (1.2Ghz) and have been crying out loud for
many years that you first have to get that 12-14 ply before chessknowledge
is more important to fix than another ply is important.

Previous year at a quad opteron 2.0Ghz, diep searched worst case 10 ply search
depth in several games.

So it can't hurt coming few years to get a tad more plies with diep, to get a
minimum of 14 ply. 4 cores isn't enough for the old versions.

Of course i'm experimenting nonstop with forward pruning now in order to search
deeper.

If everyone has a big 8 processor opteron quad core, of course the
chessknowledge and tuning is more important than whether you are
good in making a dubious search that works for the hardware in
question and is outdated the next year as there is a new cpu then.

So if your only interest is in chessknowledge, then you should be in favour of
parallel hardware.

I wonder anyway what you are going to to at home to test your program when next
year you have a quad core A64 at home.

The A64X4.

You still going to shout that everyone must run single core?

>also is uniterested the next human vs mashine tournaments with super hardware
>65535 core mashine.
>that will be of course win the mashine.



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