Author: Dan Newman
Date: 21:13:31 03/03/99
Go up one level in this thread
On March 02, 1999 at 23:09:26, Robert Hyatt wrote: >In case you didn't see my note on r.g.c.c, for those of you using win at chess >still, crafty found another 'cook' today. I was running this test just as a >'sanity test' on new changes, and at 30 secs/position, normally I get 299/300 >correct. But in this run, I got 298. Investigation showed that it was now >missing 146, where the correct move is Bc8. A look at an old log showed >Bc8 very quickly with a score of +9, but a look at the new log showed Bd3 with >a score of +20. I let it run a bit longer and Bd3 leads to a mate in 51 via >tablebases. So there are two 'winning' moves. This 'change' came about by >adding all the new tablebase files from Eugene. > >Interesting stuff.. > > >here is the output: > >log.003: 15 1:56 Mat51 1. Bd3 f2 2. c5 Ke3 3. cxd6 Kxd3 ><EGTB> >log.003: 15-> 2:08 Mat51 1. Bd3 f2 2. c5 Ke3 3. cxd6 Kxd3 ><EGTB> > > >I'd claim any move leading to a forced mate is an adequate solution. :) > >Bob Hey, neat! Now the question is, should I add this to my copy of WAC... I just tried mine out on 146, and it likes Bd3 almost from the start and holds it for 50 s till it fails high on Bc8. Of course it has no idea that Bd3 is any good -- just the least of several evils. -Dan.
This page took 0 seconds to execute
Last modified: Thu, 15 Apr 21 08:11:13 -0700
Current Computer Chess Club Forums at Talkchess. This site by Sean Mintz.