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Subject: Re: Deep Blue--Part III

Author: Vincent Diepeveen

Date: 11:55:26 05/12/98

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On May 11, 1998 at 21:52:03, Dave Gomboc wrote:

Get some chess lessons Dave.

the program is a pawn up. b4 is a horizontal effect to delay that
he's bad.

Where b4 can be discussed about, b4-b5? is cleary horrible.

It's against all positional rules of chess, but knowing that DB just
got 11 ply, it's not very surprising anymore to me that it has
these horizon effects.

In this position singular extensions don't work very well you see.

Too much possibilities to cover pieces and move with material.
Checks/Mating threats and such are not needed here, and freeapawn
extensions are very ineffective too, as the freepawn of white will not
come
further than e5.

So searching 11 ply there is 11 ply and no ply more.
Do you think it weird then that it plays like some first versions
of my own program?

At analysis level diep wants to play b4? too. but when it gets deeply,
then it doesn't consider b5 anymore, as this move becomes more
and more horrible, concluded from lines DB never saw in that game.

Vincent



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