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Subject: Re: Hiarcs7 says Rebel 10.5 missed the winning move. !?

Author: Mark Young

Date: 21:30:49 05/23/99

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On May 24, 1999 at 00:04:43, blass uri wrote:

>
>On May 23, 1999 at 18:41:59, Mark Young wrote:
>
>>After looking over the Rebel 10.5 - GM Rohde game with many programs, I finally
>>got around to why Hiarcs 7 wants to play 23. Rxb4 instead of the move 23. exd4
>>as was played in the game and most other program agree with, giving it a equal
>>score or slightly  minus score, but all the other programs think 24.Rxb4 is a
>>mistake. (Hiarcs7 give 23. Rxb4 a +138, or better then a pawn advantage at +128)
>>
>>In a effort to see why Hiarcs7 is making this blunder, I played the other
>>programs against Hiarcs7 after the move 23. Rxb4. To my surprise all of them
>>have lost even though they think 23. Rxb4 is far from the best move and prefer
>>23. exd4.
>
>Did you try to play Hiarcs7 against itself and not against weaker opponents?
>
>I believe that white has a better position after Rxb4
>and the only question is if black can draw the game.
>
>Junior5.4 chose Rxb4 at depth 19 after looking at 405614Knodes with an
>evaluation of 0.47 pawns advantage for white(the previous best move was Qc1 with
>evaluation of 0.42 pawns advantage for white).

Yes I did self play with Hiarcs 7 first, and white also won, but did not show it
because I know that would be rejected by some on CCC. (Sure white won in self
play, Hiarcs7 does not understand why 23. Rxb4 is a bad move :) )

So I posted a program that said 23. Rxb4 is a weaker move.

>
>Uri



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