Author: Paulo Soares
Date: 12:03:51 04/16/99
Go up one level in this thread
On April 15, 1999 at 23:15:08, odell hall wrote:
>Hi
>
>
>The below position is taken from the Book Secrets of Chess Analysis by Jan
>timman.
>
>3q1rk1/1p3p2/r2p2pb/P1pP1n1p/2N2P2/1QPP4/6BP/1R3RK1 w - - id Geller - Spaasky;
>
>
>28. Be4!!! Timman remarks "White appreciates the strength of the strongpoint f5
>and defers the capture on b7, which would give black the chance for a promising
>exchange sacrifice. 28. Qxb7, Rxa5 29.Nxa5, Qxa5 and now 29.Qb2(to be able to
>defend important weak points from d2 or c2).
>
>
>I tested rebel on this position and it simply could not resist the pawn on b7!
> However hiarcs6 after 82 sec Chose 28. Bh3!! which I think is about the same
>as Be4. In my opinion this is a excellent positional test for computer programs
>to see just how well they understand position. I suspect that only the strongest
>programs will be able to resist the juicy pawn on B7. I also Tested MChess 8
>which chose Be4 after one minute thought and +76 evaluation.
Odell,
PII-300 HT=32
Move Depth Time(s) Eval(1 pawn=128)
Hiarcs7.01 Qxb7 9 317 +133
Qxb7 10 441 + 82
Hiarcs7.01 when analyzing 3 moves(monitor mode):
Depth Move Eval(1 pawn=128)
9 Qxb7 +134
Be4 +134
Bh3 +115
Time: 240s(aprox.)
Fritz5.32 when analyzing 3 moves(infinite analysis):
Depth Move Eval
12 Be4 +0.53
Bh3 +0.53
Qxb7 +0.53
Time: 240s(aprox.)
As I wrote in my last post, the evaluations
are very seemed, it's difficult to conclude something in this
position.
My Hiarcs6 also considers 28.Qxb7. Your Hiarcs
is running as a Fritz engine? This could justify the differents
moves.
Regards,
Paulo Soares.
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