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Subject: Re: 16...Bd6: Did Anand have a choice ?

Author: Robert Hyatt

Date: 05:59:38 07/26/98

Go up one level in this thread


On July 26, 1998 at 07:33:31, Mark Young wrote:

>On July 26, 1998 at 06:37:57, Amir Ban wrote:
>
>>
>>Did Anand have a good alternative to the critical 16...Bd6 ? Maybe not:
>>
>>16... f6 17. Qh5+ is losing
>>
>>16... Be7 17. Bg5 Rf8 is horrible
>>
>>16... cxd4 17. cxd4 Be7 18. Rc1 Qd8 19. Nxf7 Bxe4 20. Qxe4 Kxf7 21. 0-0 is
>>clearly in white's favor.
>>
>>16... cxd4 17. cxd4 Qc2 is the only reasonable alternative. The continuations
>>are unclear & complicated, but look more in white's favour:
>>
>>      18. Be3 f5 19. Qh5+ g6 20. Nxg6 hxg6 21. Qxh8 and black can continue Qc3+
>>or Qxe4.
>>
>> or
>>
>>      18. d5 Bxa3 19. 0-0 (or even Rxa3)
>>
>> or
>>
>>      18. d5 exd5 19. exd5 Be7
>>
>>
>>Most people assume that Anand spent 18 minutes to work out that Bd6 works
>>perfectly. He may have spent those 18 minutes to consider just how bad those
>>alternatives are, then crossed his fingers and played Bd6.
>>
>>Amir
>
>If true then Anand was lucky to win the second game. Is there a solid line of
>play to win against Bd6 that Rebel 10 missed? And how would you rate rebel 10 in
>the two games with GM Anand? If it is inappropriate to ask about the strength of
>a competing program I withdraw that question.



One critical choice was Qh5+ of course, which is a move that hardly any other
program will play.  It might be best, but it doesn't appear so to me.  I have
searched around this position for a long time (using both my head and Crafty)
and only like g3 or Qh3.  Possibly O-O but I'm not sure that doesn't lead to
less of an advantage, although a safer (for white) position.

Crafty would play g3 given at least one second, and After a couple of hours, and
a very deep search it has never wavered.  And based on node counts, Qh3 is the
number 2 move in the position...



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