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Subject: Re: Mate in 4 explanation

Author: Eran

Date: 08:25:09 10/08/97

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On October 08, 1997 at 04:14:12, Ed Schröder wrote:

>>5rk1/1pnqb1r1/p2pRp2/2pP1PpQ/P1P1NpP1/3B1P2/1P1K4/7R w - - id=Shirov,A -
>>Lillo Ferrer,J; bm=e4g5;
>
>>I was reviewing this game with analysis mode with Rebel 8(K6-200)
>>when the above position arose. For some reason Rebel could not find
>>the mate in 4 move Ne4xg5. What is it about this position that might
>>explain this? When I set Rebel 8 to "find mate in 4" mode it is found
>>instantly.
>
>This is one of the rare cases Rebel selective search fails.
>
>You can check this to set Rebel8 on "brute force", see options.
>Rebel8 will find Nxg5 M4 on ply 5.
>Also SEL=1 / SEL=2 etc. will give improvements.
>
>- Ed -
>
>BTW, thanks for the position. I collect them and if there is a pattern
>it's not so difficult to make improvements.

Ed,

Can Rebel9 quickly find the mate in 4 move Ne4xg5 using Normal
Selection?

Can Rebel9 find the mate in any move in other games using Normal
Selection much faster and much better than Rebel8?

I don't expect Rebel chess program to be perfect, but I always feel
better when Rebel chess program gradually gets closer and closer to
perfection. :)

Thanks,
Eran :)
Considering about buying Rebel9 in the future.



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