Computer Chess Club Archives




Subject: Re: Question for the MTD(f) experts

Author: Fabien Letouzey

Date: 03:40:00 04/14/04

Go up one level in this thread

>It's really simple.  I store more information in the moves than most people.
>Most of you, I guess, store only the from and to squares, and the promotion
>piece in the case of pawn promotions.  I also store the moving piece, the
>captured piece, and whether the move was an en passant capture.  This gives
>me everything I need to update the hash key, without looking at the board
>at all.  The price is that I need a bigger number of bits to store moves
>in the transposition table.


What about the castling rights?

E.g. white plays Ra1a7, or black captures a white rook at h1.


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