Author: John Scalo
Date: 18:45:44 01/01/98
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On December 31, 1997 at 18:33:36, Komputer Korner wrote: >You are mistaken about the highest possible positional score being >limited to 1 pawn. I have done extensive investigation into piece sacs >and 3 pawn gambits and have concluded that positional compensation can >indeed add up to as much as 3 pawns. And more if the effect of an >advanced passed pawn is taken into consideration. However even without >any passed pawns, one side can be behind a piece or 3 pawns worth of >materiel and have complete positional compensation for it. 3 pawns worth >of compensation doesn't happen often, but 2 pawns worth is quite common. >BTW, I have discovered over 150 playable piece sacrifices in the opening >with about 5 new ones per year. > In my program, positions with a score of 2.0 or fairly common, but I don't think I've ever seen 3. The exception to this is in the endgame where a passed pawn can be calculated to promote formulaicly if the opposing side has only the king and possibly other pawns (but not other pieces). So if a passed pawn can promote at will, I give this position an added value of 8.0 (queen - pawn).
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