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Subject: Re: EGTB Test Positions

Author: guy haworth

Date: 01:43:16 01/24/02

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You could run some systematic tests on your EGTB implementation as follows:

1)  http://chess.jaet.org/endings/docs/3-5_Mzug_Data.xls  gives example maxDTC
and maxDTM mzugs for all 3-5-man endgames.

2)  http://chess.jaet.org/cgi-bin/mzugs  gives all (dual-sourced) mzugs for
3-5-man endgames

3)  A list of all maxDTM positions in 3-5-man endgames (created by Peter Karrer)
can be made available if you wish ... please specify if winzip'd ok.  I guess it
would be useful to have a list of sample maxDTC and maxDTM positions on the web
but I haven't done that yet.

4)  Yes, you certainly want to test that your interface exploits Nalimov's
implementation of e.p. positions.

5)  Combinations of promote, capture and check(mate) have caused EGT-generation
problems in the past.  A few positions like that are recommended ... but I have
every confidence in EN's EGTs, given the consistency-check he runs and the fact
that they have passed all the tests.

G




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