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Subject: Re: Rebel Century cannot reproduce a move from Cadaques tournament

Author: blass uri

Date: 09:50:57 02/09/00

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On February 09, 2000 at 12:25:08, Enrique Irazoqui wrote:

>On February 09, 2000 at 12:00:36, blass uri wrote:
>
>>[D]2rqr1k1/p3bp1p/6p1/n1pnP3/3pB1b1/PP3N2/2QN1PPP/B1R1R2K b - - 0 1
>>
>>This position is from game 19 between Fritz6a and rebel Century.
>>Rebel Century played 22...Rb8 after 81 seconds and lost the game.
>>
>>My original Rebel Century
>
>That's it. Did Ed send you the patched version that played in my tournament?
>It's supposed to be identical to yours, except for the removal of some code that
>improved the speed by 8%. It had to do with a discussion here between Ed and
>Bob. Later on, Ed found out that this new code harmed Century, removed it and
>sent me the patch.
>
>>(not 1.2) found after less than a minute on
>>pentiumIII450(slower than enrique's hardware) the move
>>22...Nf4 and does not change its mind.
>
>
>
>>probably an autoplayer problem.
>
>Nope, I just checked. Century picks Rb8 at ply 7.02 after 15 seconds, +0.38 eval
>and keeps it until ply 9.01, when it switches to Nf4 after 238 seconds, +0.43.
>Ed can confirm.

I played a game against the original Rebel century that I got when I bought it
and it found Nf4 in less than  a minute.

I used the infinite time control and told it to move when it used enough time.
It could produce all the moves before Nf4 but swithced to Nf4 after less than a
minute.

Maybe the difference is because I used the game and not the position without the
game.

I do not know.

Uri



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