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Subject: Re: Chess Programming: how to identify ending phase?

Author: José Carlos

Date: 14:58:22 04/20/01

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On April 20, 2001 at 15:49:33, Normand M. Blais wrote:

>Hi,
>
>I'm using the following:
>
>#define ENDING \
>((pawn_mat[side]+pawn_mat[xside] <= 1200) && \
>(piece_num[side]+piece_num[xside] <= 5))
>
>
>Assuming a value of 1000 for a pawn and that the kings or the pawns are not
>counted as a pieces for "piece_num", is the expression above correct?
>
>Thank you for your help.
>
>NMB

  There doesn't exist a 'correct expression'. Even strong humans disagree
sometimes about whether a postion is late midgame or early endgame.
  Anyway, I'd suggest you not to count the pawns at all. BTW, I suspect your
value for a pawn is 100 rather than 1000. Otherwise, you're saying it's not
endgame phase until there's only one pawn on the board.

  José C.

• Re: Chess Programming: how to identify ending phase? Normand M. Blais 16:29:38 04/20/01

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