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Subject: Re: Mate in 4 explanation

Author: Ed Schröder

Date: 01:14:12 10/08/97

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>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.

• Re: Mate in 4 explanation Eran 08:25:09 10/08/97
  • Re: Mate in 4 explanation Ed Schröder 11:18:45 10/08/97
    • Re: Mate in 4 explanation Tim Mirabile 13:13:22 10/08/97

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