Computer Chess Club Archives




Subject: Re: a question to Tord about detecting threats in null move

Author: Vincent Diepeveen

Date: 16:45:25 10/04/03

Go up one level in this thread

On October 04, 2003 at 17:40:11, Sune Fischer wrote:

>On October 04, 2003 at 17:25:27, Gian-Carlo Pascutto wrote:
>>On October 04, 2003 at 17:23:07, Uri Blass wrote:
>>>My feeling is no in this case but I will prefer even 1.e4 h6 and not to go to
>>>popular lines when I can expect some kure killer line.
>>>It may be an interesting experiment to test top programs in 1.e4 h6
>>>If some volunteer with good hardware can give white 180 minutes/40 moves and
>>>black 1800 minutes/40 moves(no pondering) then it may be interesting to see the
>>>result of black.
>>>If opening book is important like vincent believe then black should get poor
>>>results inspite of the hardware advantage.
>>>If search is important like I believe(and I may be wrong) then I can expect
>>>black to get more than 50%.
>>I don't think I ever saw Vincent arguing that being 10 times faster is not
>>important - you are really swinging wildly and not hitting anything here.
>If I may, I think I understand Uri's point.
>The problem with books is that they do the playing on behalf of the engine.
>Now if you have a really good book that may be an advantage, but if you are
>using the standard pgn compile maybe it is better to get the engine to think on
>its own as fast as possible. Otherwise you run the risk that it finds itself in
>a lost position 20 moves later comming out of book.
>Also consider that time is a factor, as long as your opponent is playing from
>book he is saving time.
>Playing 1.h3 (I think I'd prefer 1.a3) solves many of those problems and a
>relative small price.
>Of course objectively 1.h3 is not the strongest move, but that's not the (whole)

So you go 1.h3 the opponent directly reacts and plays within a flash of a second
out of his book 1..e5

You hope to confuse your opponent and play 2.a3 and avoid your opponent from
saving time by book. With the usual confidence of an Uri (because who else on
the world would be crazy enough to play h3? and a3?) you happily laugh to the
left and right. After a while you look again at the board and while swallowing
the last remnants of your meal that morning you realize that opponent has
already answerred instantly 2..d5 and that only YOU lost time.

So a) you have a lost position
   b) you you have a time disadvantage
   c) you are very early out of book and the opponent has still
      another 10 easy to find moves to play where you struggle and struggle.

There goes all your advantages of surprise...

I remember that i surprised some years ago some engines with the very bad 1.a3
then after 1..d5 which they all played diep would go 2.d4 and then pray the
opponent was out of book.

I even remember how i fooled Nimzo. It was just too plain aggressive psq
program. I had figured out that after 1.a3,d5 2.d4,d5 3.Bd2 it would be out of
book and give away a pawn at c5 directly. Then dxc5 and soon a3 c3 e3 and white
would be a pawn up.

However that doesn't work anymore for quite a few number of years already. The
last time that something like this worked was like 1998 or so.

That's 5 years ago.

This just shows how important it is to visit world champs regurarly.

Otherwise your 'tricks' are outdated quite some.


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