Author: Robert Hyatt
Date: 20:02:15 05/05/02
Go up one level in this thread
On May 05, 2002 at 12:44:12, Terry McCracken wrote: >On May 05, 2002 at 09:41:06, Vincent Diepeveen wrote: > >>On May 04, 2002 at 04:15:48, Ed Schröder wrote: >> >>>[d]8/8/7p/3bk1p1/2p3P1/2P1N1K1/8/8 w - - am Nxd5? >>> >>>This is an end position after 100 moves from an eng-eng match. How to judge the >>>result, draw or is white lost after all? >> >>you should play it out. not stop eng-eng match after 100 moves. >> >>>In analysis mode to my surprise 101.Nxd5 failed low giving -5.98 (see below), >>>thus losing. Can white draw with for instance 101.Kf2, I wonder. >>> >>>What do your engines say, especially those with table bases. >>> >>>Ed >>> >>>================================================================= >>> >>>00:00:03.6 -1,10 14 1780001 Nxd5 Kxd5 Kf3 Ke6 Ke3 Kf6 Ke4 Kg6 >>>00:00:03.0 -0,60 15 2276672 Nxd5 Kxd5 Kf3 Ke6 Ke3 Ke5 Kf3 Kd5 >>>00:00:03.9 -0,60 16 2606620 Nxd5 Kxd5 Kf3 Kd6 Ke4 Ke7 Kd5 Kf6 >>>00:00:05.2 -0,03 17 4188958 Nxd5 Kxd5 Kf3 Ke6 Ke3 Ke5 Kf3 Kf6 >>>00:00:06.0 -0,03 18 5758158 Nxd5 Kxd5 Kf3 Ke6 Ke3 Ke5 Kf3 Kf6 >>>00:00:10.6 -0,32 19 9055830 Nxd5 Kxd5 Kf3 Ke6 Ke3 Kf6 Ke4 Kg6 >>>00:00:15.9 -0,32 20 15587442 Nxd5 Kxd5 Kf3 Ke6 Ke3 Kf6 Ke4 Kg6 >>>00:00:28.2 -5,98 21 29760618 Nxd5 Kxd5 Kf3 Ke5 Ke3 Kf6 Kd4 h5 > > >Yes he could have played it out, but I think Ed was curious about this position, >and wondered what would happen after 101.Kf2 which Century 4 wouldn't play. >So he brought it to our attention. > >If 101.Nxd5? White loses quickly, after 101. Kf2 White may last longer but would >still lose. > >I think he wanted an opinion, what we thought and what other chess engines would >play. > >Maybe someone could plug in Kf2 and see how the analysis reads? I think that's >what Ed really is interested in. > >Although it's still dead lost for White. > >Terry After a couple of minutes, Kf2 (which Crafty prefers quickly after finding Nxd5 is -5) also drops to -5 and seems to be lost...
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