Computer Chess Club Archives


Search

Terms

Messages

Subject: New Win at Chess cook

Author: Robert Hyatt

Date: 20:09:26 03/02/99


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



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.