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Subject: Re: Tiger too selective ?

Author: Ernst A. Heinz

Date: 10:53:21 12/22/00

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Hi Uri,

>On December 22, 2000 at 12:56:43, Ernst A. Heinz wrote:
>
>>>[d]2r1k2r/5pp1/4p3/ppqpP3/4bQPP/1B6/PPP2R1R/2K5 b k -
>>>
>>>a4 ! is very strong (1...a4 2.Qf7 Kd8 3. Qxg7 Qe3+ -+)  but Tiger (2 versions)
>>>doesn't see this move
>>>
>>>How do perform other engines here ?
>>
>>"DarkThought" (http://supertech.lcs.mit.edu/~heinz/dt/) locks
>>onto a4 with a positive score of +1.3 in iteration #10 after
>>less than 20 sec.
>>
>>=Ernst=
>
>What is the score of Dark thought after 0-0 instead of a4?
>Crafty17.13 is very happy with 0-0(1.45 pawns for black at iteration 14)
>Crafty does not like a4 at iteration 14.

"DarkThought" prefers 0-0 until iteration #10 where it gets
a fail-low on it and scores it only as +0.39. White's attack
on the King side with Pawns storming forward fast simply seems
too dangerous for "DarkThought" to like it.

Actually, "DarkThought" just got another fail-high on a4 in
iteration #14 with an unresolved score >= +1.62. So, the score
of a4 seems to increase the deeper "DarkThought" looks into  it.

=Ernst=

to like the castling move.



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