Author: Daniel Clausen
Date: 01:45:00 02/28/03
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On February 28, 2003 at 04:29:38, Steffen Jakob wrote: >This is a position from Hossa - Postmodernist played at ICC: > >[D]8/8/8/4K1k1/p2P4/P6b/8/8 w - - 0 68 > >Does your engine see that this is a draw? Hossa knew it but PM had a constant >score of 2.81 and was happy when Hossa exchanged into this endgame. Maybe >white's extra pawn[s] did confuse him. I think it's very nice when an engine has this (static) knowledge to recognize this position as a draw. I assume that such draw-recognition code is typically not perfect though. With 'not perfect' I mean that there's still the possibility that a tactical maneuver can break the idea why a certain position is draw. AFAIK, Omids recognition of fortresses is perfect in the sense that if his engines says that it is a fortress, then it really IS one. (conservative mode, so to speak) If I understood him correctly, that means that there's absolutely _no chance_ that a tactical maneuver can break the fortress-idea. I guess it's a trade-off between 'being sure that this is a draw-pattern' and 'recognize enough potential draw-patterns in practical games'. Sargon
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