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Subject: Re: Puzzled about testsuites

Author: Tord Romstad

Date: 08:43:51 03/09/04

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On March 09, 2004 at 11:28:16, Michel Langeveld wrote:

>I am very puzzled. Somewhere I should have made a mistake. Maybe my approach for
>tuning on ecmgcp.epd was wrong.

Yes, tuning for *any* finite number of test positions is wrong.  Playing a big
number of games against a wide variety of opponents is the way to go.  It is
painful, time-consuming and boring, but so far I haven't found any other way
of testing which works.

>My questions:
>* Is 5 seconds a move a good timecontrol to test ecmgcp.epd ?

You should use more, IMHO, especially considering your slow hardware.  I do
most of my testing on a PIV 2.4 GHz, and I never use less than 10
seconds/position when running my engine through ecmgcp.  Version 0.4.6
solves 136/183 at 10 seconds.

>* Does it makes sense to use a reall long timecontrol?
>* I learnt that ecmgcp.epd is much more tactical as strategical.

Definitely.  It is a collection of combinations, nothing more.  A purely
tactical test suite.

>Does someone
>has other/ better positional/eval-tweaking advice? No testsuites? Other
>testsuite, like lct2.epd, the comeplete ecm.epd ?

The complete ecm.epd would be no better.  All positions are tactical.
LCT2 is great, but unfortunately I don't know any other suites of
similar type and quality.

Tord



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