Computer Chess Club Archives




Subject: Maximum Number of Legal Moves

Author: Andrew Shapira

Date: 20:44:31 05/08/05

What's best known (the smallest) upper bound on the number of legal moves, taken
over all chess positions?  An obvious bound is 9*7*4+2*14+2*14+2*8+8 = 332.
This comes from 9 queens, 2 rooks, 2 bishops, 2 knights, and 1 king.  Is a
better bound known?

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