Author: scott farrell
Date: 16:15:48 01/12/04
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On January 12, 2004 at 10:02:07, Robert Hyatt wrote: >On January 12, 2004 at 03:09:10, scott farrell wrote: > >>On January 11, 2004 at 21:18:30, macaroni wrote: >> >>>I have recently been fiddling arround with some passed pawn code, however I just >>>can't seem to get it working very well. Can you give me an idea of what sort of >>>values you give different types (in different stages) of passed pawns? >>>cheers >>>Tor >> >>I think it needs lots of knowledge. >> >>What I did is use several pieceSquareTables, for different types, like blocked, >>isolated, defended, passed, connect passed (probably the most important), >>defended passed, etc >> >>I then tweeked values to solve certain problems. With various psTables, you end >>up with lots of levers to play with. >> >>Scott > >Watch out about "connected passers." > >give white two pawns on d2/e2. Give black two pawns on a2/h2. Both kings >in the center. Which side do you like? :) > mmm.. I thought, how often would that happen, then just watched chompster lose an engine vs engine match to that very thing. I actually check for knight/bishop and score the connect passers close to knight, as you often have to sac the piece to stop it. If only rooks left, score it closer to a rook (piece tables still). I'll just add, if no pieces, just dont give bonus for connect passers. thanx for this Scott >This happens a lot vs GM players, once they see the hole. They will >happily give you those two connected passers. :) > >Connected passers are good when you have pieces... But with no pieces, >look out.
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