Author: Robert Hyatt
Date: 12:54:23 02/20/02
Go up one level in this thread
On February 20, 2002 at 15:42:54, Uri Blass wrote: >On February 20, 2002 at 15:41:17, Robert Hyatt wrote: > >>On February 20, 2002 at 14:47:59, Uri Blass wrote: >> >>>On February 20, 2002 at 13:45:08, Robert Hyatt wrote: >>> >>>>On February 20, 2002 at 12:18:56, Uri Blass wrote: >>>> >>>>>On February 20, 2002 at 12:10:04, Robert Hyatt wrote: >>>>> >>>>>>On February 20, 2002 at 12:00:12, Gian-Carlo Pascutto wrote: >>>>>> >>>>>>>On February 20, 2002 at 11:29:44, Robert Hyatt wrote: >>>>>>> >>>>>>>>Don't understand the king safety evaluation here myself. All Crafty will >>>>>>>>consider for black is Nxe5. Handling this kind of position is critical when >>>>>>>>playing on ICC for example... "Thou shalt not attack thyself..." >>>>>>> >>>>>>>All Crafty will ever think is 'thou shalt not attack..." :) >>>>>>> >>>>>>> int king_safety_asymmetry = -40; >>>>>>> >>>>>>>Horrors! >>>>>>> >>>>>>>-- >>>>>>>GCP >>>>>> >>>>>> >>>>>>Whatever it takes to survive. Better to defend and win than to attack >>>>>>and lose... which is _very_ common against a few particular players on >>>>>>ICC. >>>>>> >>>>>>Why open up both yourself _and_ your opponent and hope _you_ get the attack >>>>>>going first? Humans are _better_ at analyzing such positions than any computer >>>>>>program around. Playing right into their strength is incredibly dangerous... >>>>> >>>>>Playing tournament time control game is not the same as playing in ICC and I >>>>>guess that van wely could try a different strategy against Crafty. >>>> >>>>Why would you think that? Crafty plays _plenty_ of long games on ICC, and >>>>those are the games I generally use to adjust things, _not_ the more numerous >>>>blitz games that happen. I generally ignore those unless I see some sort of >>>>long-term trend taking shape... >>> >>>I guess that most of the long games are at faster time control than 120/40. >> >>Most FIDE games are faster than 120/40 in fact... >> >> >> >> >>>> >>>> >>>> >>>> >>>>> >>>>>Van wely plays against the opponent so it is natural that he is going to play >>>>>for positions that Rebel does not know to play and not for positions that other >>>>>programs do not know to play. >>>> >>>>I don't agree. I don't think he knows a lot about Rebel 4. He is just playing >>>>positions that computers in general don't understand. I have played him many >>>>games on ICC as have others. He has a good idea of what computers can and can't >>>>do, in general. And, in general, _all_ have the same basic weaknesses... Some >>>>moreso than others of course. >>> >>>The games you played against him are not the important tournament games that he >>>plays against Rebel. >>> >>>He boought Rebel Century few weeks before the match in order to learn about it's >>>weaknesses. >>> >>>He could simply download Crafty or use anohter program that he has >>>if his target was only to play anti-computer chess. >>> >>>Uri >> >>He has _done_ that. He plays _lots_ of computer games on the server. He has >>played matches against computers in fact, for amusement. Other GMs have done >>the same (Shirov comes to mind but there are lots of others). >> >>You can play any of several computers and begin to get an idea of what computers >>can and can't do well... > >My point was that for this match he bought Rebel and did not only try to play >against computers. > >Uri Yes, but he already _knew_ about computer weaknesses in general. He might well have found a very specific something in Rebel that he wanted to exploit. But today's game just looked like what he normally tries against computers. I have watched him give one overly aggressive program a bad beating because it would way over-extend and he understood _exactly_ which squares needed defending and when...
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