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Subject: Re: To NON-believers in EGTB benefits... (some engines benefit greatly..

Author: A. Steen

Date: 21:21:20 11/20/05

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On November 21, 2005 at 00:01:48, Jonas Cohonas wrote:

>>>Simply put, you need a more complex example.  :)
>
>I completely agree.

Thanks for your support (btw and apparently relevantly when discussing EGTBs,
your marital status and trouser preference lines are missing from your profile -
 before you are reminded by someone else!).

By "complex" I mean chessically complex, of course.  Not necessarily more on the
board.  Here, from the game later provided by the OP, is a good enough one (for
Fruity, apparently):

[D]2r5/8/5K2/3k4/8/8/8/8 b - - 0 93

Even a beginner knows that R-c4, R-f8+ are 2 fastest wins. Less obviously, but
due to the geometries of the position, K-d6 is equally fast.

But Fruity (per the game: replication may be hard for the usual reasons re hash,
also exact timings) manages only the scenic R-c3.  Worse, that is just part of a
bigger pointless circuit.

As I said, all the OP needed was a more complex example. The simplest EG
algorithm would yield Ke3 in the example the OP first gave.

Perhaps the OP could try out the other programs, sans EGTBs, on "my" position
and find other culprits?  F9

Best,

A.S.

Note to Graham: OP = Original Poster.



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