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Subject: Statistical question for tablebase users

Author: Dann Corbit

Date: 16:08:10 02/10/99


For two minutes per move, what is the effect of a 3 piece tablebase on the
probability of finding a mate from a random position?

For two minutes per move, what is the effect of a 4 piece tablebase on the
probability of finding a mate from a random position?

For two minutes per move, what is the effect of a 5 piece tablebase on the
probability of finding a mate from a random position?

If we can calculate any of these, can we extrapolate to the benefit of a 6 piece
tablebase?

Do we know the answer to these questions?

Do we know (roughly speaking) how much time is saved by a table hit?

Do we know the probability of a table hit from a random position with 'x' men on
the board?




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