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Subject: Which set of TBS is most recommendable?

Author: Mike S.

Date: 13:35:31 12/01/01


After reading the Gandalf-GT 2 match discussion below (partially about problems
recognising that RN-R, RB-R are usually draws), I'd like to ask what you think
is the best recommendable (sub-)set of the table bases for practise including
engine matches.

I'm aware most people will say "use all 5 men tbs", but large experiments have
been made showing that the slowdown effect and other effects from using the tbs,
often result in *worse* performances in practical positions, than without the
tbs. Misjudgement of continuations which keep the game out of tbs material, is
one of these effects, which i.e. can make the win unecessarily easy for the
opponent (which may - without tbs - fail to win if the best defense in played).

I use the complete 3- and 4 piece-tables *plus* krnkr, krbkr, because these are
very important draws. These two should not create an "incomplete" problem
because they do not contain pawns.

What do you think?

Regards,
M.Scheidl



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