Author: Martin Giepmans
Date: 04:06:17 08/31/04
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On August 31, 2004 at 06:52:10, Vasik Rajlich wrote: >On August 30, 2004 at 19:44:50, Eugene Nalimov wrote: > >>On August 30, 2004 at 14:03:49, Dan Honeycutt wrote: >> >>>In spite of Dr. Hyatt's admonishment that this was a loser in Crafty, I'm bent >>>on trying it. Since I do legal move generation I can do the pins for half price >>>- I either have or can use the pin data for one side in conjunction with >>>generating moves. I just finished the routine. My NPS dropped by just over 4% >>>on bench test psitions. I've just started testing an hope to have some >>>indication if pin detection is a win, lose or draw in a few days. >>> >>>One aside - the pin detection is not always more accurate (or mine isn't). In >>>the following position for the move Nxg5 the no-pin SEE correctly returns +1 >>>where the pin-detection SEE comes back with -2. >>> >>>[D] 7k/4q3/8/6p1/4N3/5N2/8/4K3 w - - >> >> >>White is lost in 24 :-) >> >>Thanks, >>Eugene > >Really? This ending is only lost in exceptional cases - and it's certainly not >obvious that this is one of them. > >Vas I guess Eugene has the (6 pieces) EGTB for this one. :) Martin > >> >>>Fixing this would require keeping track if the pinning piece enters the >>>exchange, which I'm afraid would bee too expensive. >>> >>>Dan H.
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