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Subject: The problem with rating list of computers

Author: blass uri

Date: 01:23:10 06/04/99


suppose that there is a program with the name drawer.

This program can always find the best move but it has only one bug.
If the opponent offers a draw then drawer except.

Suppose humans know about this bug.
What is the rating of drawer against humans?

If drawer play against kasparov it will do draws in all the games and have a
very high rating.

If drawer plays against 1400 players then it will have rating of 1400.

If drawer plays against computers then it may win program A 20:0 and do a draw
against a weaker program B because B offers the opponent a draw when the
opponent has an advantage and A does not do it because the programmer think that
it is insulting to offer the opponent a draw when the opponent has an advantage.

The customer may think after seeing the results of A against drawer and B
against drawer(without the games) that B is better than A when it is clear that
A is better than B against humans and also against computers without the bug of
drawer.

Uri



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