Author: Uri Blass
Date: 00:40:11 12/17/02
I think to add to my program bitboard that will be used only for pawn structure. 2 numbers of 64 bits that are used for white pawns and for black pawns. I want to detect based on these bitboards a lot of information about every pawn and I may want to use the information together with attack tables for evaluation. My question is if using bitboard is a good idea to get the information and if the answer is positive how can I detect the information by bitboards For every pawn I want to detect the following: 1)Is it a weak pawn(a pawn that can never be defended by a pawn and cannot go forward to promote without captures and without the risk of being captured by a pawn) 2)Is it probably weak pawn(it means that the only way to defend it by a pawn is by capturing the opponent pawn or by letting the opponent to capture the potential defender by a pawn). 3)Is it a pawn that is defended by a pawn and if not how many normal pawn moves that are not captures and do not let the opponent to capture by a pawn are needed to defend it by a pawn. 4)Is it a passed pawn and if it is a passed pawn how many normal pawn moves are needed to defend it by a pawn. 5)Is it a potential passed pawn(is the only way of the opponent to stop it is by letting the player to have another passed pawn) In case that it is a potential passed pawn the question is if it can be done by normal means or the only way to make it a passed pawn is by sacrifices Uri
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