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Subject: Hi Bob and Ernst

Author: Les Fernandez

Date: 22:27:49 02/10/01

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Thanks for your comments.  I can understand the 8 major rotations being taken
into consideration when developing egtb's but does it also take into account the
following:??

NOTE: key piece is defined as that piece which is the piece that is to be moved
according to the first egtb recommended move and all other pieces have a fixed
position.

Assume you have a board position with 3 pieces on it, say BK,WK and WR.  And
lets say for this particular position the solution for starting the mate
sequence is WR on F3 to F8 according to the main egtb.  Lets refer to F3 as the
key piece and F8 as the target square and the kings are "fixed pieces".  Now as
long as the key piece can reach the target square doesn't that imply that as
long as we find the key piece on either F3, F4, F5, F6 or F7, and the kings are
in their same position, that the same key tablebase can be used or is this also
done in the prior methods?  Just looking to understand what actually has been
done with the prior methods and maybe have to much free time <s>.


Thanks,

Les

ps Ernst is your book hard or soft covered?



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