Author: Robin Smith
Date: 15:53:35 04/04/03
Go up one level in this thread
On April 04, 2003 at 14:24:46, Robert Hyatt wrote: >On April 03, 2003 at 13:55:16, Peter Berger wrote: > >>On April 03, 2003 at 13:07:53, Drexel,Michael wrote: >> >>>On April 03, 2003 at 08:36:40, Eran wrote: >>> >>>>Which chess engine, Winboard or UCI, understands positional games very well and >>>>is best at long time control games? >>>> >>>>Thanks for any help. >>>> >>>>Eran >>> >>>No engines understand positional chess very well. Even the commercials dont. >>> >>>Many Capablanca games are good to test engines. >>>Here is an example from Winter-Capablanca Hastings 1919: >>> >>>[D] r4rk1/ppp2p2/3b3p/2p1p1p1/4P3/3P1PBP/PPP2P2/R4RK1 b - - 0 15 >>> >>>White was lost after 15...f6!. >>>All engines I have tested like to play f5 sooner or later. >>>This is a mistake because white is able to draw after exf5. >> >>I can understand to some extent why f5 could be bad, but I don't get what is so >>great about ..f6. It would be nice if you could post the annotations, too, or >>maybe add some explanation. >> >>Thanks, >>Peter > > >I'm always a bit suspicious of these kinds of positions. IE do we _know_ that >f6 wins? >Or did it just win in that game? > >There's a difference. We know that the Bg3 is in a box from which it is very hard to break out. We know that if the Bishop does not break out, white plays effectively a piece down. We know that f6 makes the box stronger. But there are other strong moves for black and no matter which one black plays white may still be able to break out without losing, for example by sacing a pawn at f4, followed by playing f3. Or perhaps d4 follwed by de. Bottom line, I don't think this would make a good test position, but ..f6 is a good move. -Robin
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