Author: Robert Hyatt
Date: 06:21:23 02/01/00
Go up one level in this thread
On February 01, 2000 at 08:48:31, Vincent Diepeveen wrote: >Hello, > >For years i've been wondering why Kasparov played h6?? in the last >game against deep blue. It is for sure that Kasparov knew that h6?? was >a bad line after Nxe6! > >Kasparov has said several things about this game, all crap what he says >in my eyes. Latest explanation of him i heart being said on the internet >was that Kasparov with his excellent memory and as a professional and >young player had forgotten it and hastely played h6 thinking it would be >transposition anyway. > >Now i found that already very unlikely. See here my big surprises when >checkingout the log files of Deep Blue. > >I figured out that Deep Blue had thought already about moves before this! >Even though some moves were from book, the moves Nxe4 and Bd3 especially >there deep blue lost like 6 minutes of time somehow. Kasparov must have >thought deep blue was out of book! > >Some moves that were made quickly by deep blue Kasparov must have thought >there that they were predicted correctly by the computer, which was in fact >true. the move e6 was in fact predicted correctly. > >Now first we can clearly deny that kasparov hastely played h6 by accident. >The log file shows clearly that kasparov has thought nearly 93 seconds about >making h6. > >Now for the average player 93 seconds in opening might mean he just drank >a bit of his tea, but Kasparov who plays theorem always within a second, >has given this position over a minute of thought. > >That can mean only one thing! > >Kasparov OBVIOUSLY knew both lines. He KNEW h6 was bad. He KNEW Bd6 was good. > >He MIGHT have considered deep blue out of book. It is very unlikely that >deep blue would have played Nxe6. The score is -0.20 after the sacrafice >and before that it is about +0.20, so over 0.40 pawn difference between Nxe6. > >Of course Nxe6 was in book. Log file clearly show that. > >Kasparov made Qe7 directly. Within 20 seconds. If Kasparov had forgotten >the Nxe6 line he would have been in shock for at least quite some time. > >Kasparov was not. So kasparov WILLINGLY risked the Nxe6 line. He very likely >must have thought in that 1 and a half minute before deciding to move h6 >about that he already had a chance that deep blue would NOT capture at e6, >after which black is fine. If deep blue WOULD capture, nah then kasparov was >a piece up, like in previous games deep blue might simply allow queen exchange >after which kasparov was a piece up and would win chanceless. > >Let's not call Kasparov too many words, but he sure was arrogant underestimating >the computer in an open position. He sure was ignorant about the aggressive >tuning of deep blue and he sure was naive risking Nxe6 and not even blinking >when the program played it. > >Vincent I have always been convinced that he played h6 intentionally. At least one member of his "team" was quoted as saying "we made a bad _decision_ in the game in round 6." "decision" != "mistake".
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