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Subject: Securing certain types of positions

Author: Russell Reagan

Date: 11:07:10 10/18/03


Omid recently told about his test on whether he should include checks in the
qsearch, and he said that when he included checks, his program butchered Crafty
when it got an open, tactical position, but that when it was a more closed or
positional position, his program didn't have such good chances.

This made me wonder if it is possible to secure certain types of positions. For
instance, in the case of Falcon, it would be beneficial to secure positions that
are open and tactical when playing Crafty. So I would like to know if it is
possible for guarentee certain types of positions. Maybe via the opening book
and selecting to play gambits, or by altering the evaluation function.

It is one thing to make the engine prefer open positions, but another thing to
have it achieve them. By playing gambits, it is always possible for the opponent
to decline, so that might not ensure a desired type of position. Also the answer
might be different depending upon whether you are playing white or black. As
black you are responding most of the time and it seems like white could keep the
game from becomming too open if he chose. I don't know a great deal about
opening theory though.



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