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Subject: CA 6.0 addittional patch for using Tablebases with Tiger14

Author: Victor Zakharov

Date: 04:03:01 04/03/01

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On April 02, 2001 at 13:26:56, Bernd Haehnle wrote:

>I am not sure if the tablebases work in CA 6.0 because of this position:
>
>8/1BB4k/b6P/4Kp2/4n3/8/8/8 w - -     (Shredder - Rebel)
>
>The Chessprogramm "Shredder 5" shows Mate in 32, but the Shreeder 5-engine in CA
>6.0 doesn't inform about the mate, but it seems Shredder is able to find the
>moves anyway. The reactions of the other engines (Tiger 12,13,14..)are not
>better ...

As for Tiger14/G-II tablebases problem Convekta placed additional patch for
this, really a small file - Engines6.frm that causes the problem with
tablebases.

http://www.chessassistant.com/software/ca/ca60/Engines6.frm
http://www.chessassistant.com/news/i30032001.htm

The problem was with the last minute "obvious" correction that was not tested.

Tiger 14 solves the position about 5 minutes on Celeron-366 processor.

As for Shredder-5 we don't find problems with tablebases in it. As standalone
Shredder-5 program, so Shredder in CA6 solved the problem in 30+ minutes. Both
obviously used Tablebases.

Could you check Shredder-5 with more simple positions first. Because non-optimal
settings like low hash and cache size could dramatically slow down the engine at
endgame.



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