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Subject: Re: Fruit plays DeepBlue´s strongest move

Author: Uri Blass

Date: 15:45:47 07/04/05

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On July 04, 2005 at 17:18:50, Robin Smith wrote:

>On July 04, 2005 at 08:13:42, Vincent Diepeveen wrote:
>
>
>>
>>As proven by Seirawan 37.Qb6 is 1-0
>>Be4 is not so clear
>
>I'm not so sure 37.Qb6 is clear either. I believe Seirawan gave 37.Qb6 Rxa2
>38.Rxa2 Bc7(?), however how does White win if Black plays 38...Ra8!
>
>For example:
>
>39.Rxa8 Qxa8 40.Qxd6 Qa1+ 41.Kh2 Qxc3 and (I think) Black can force a perpetual
>similar to the one Kasparov missed in the game itself, while after
>
>39.Ra5 Rxa5 40.bxa5 Qb8
>and now 41.Qc6 Qa7+ (or also 41...b4) 42.Kh2 Qf2 again with perpetuals
>     or 41.Qxb8 Bxb8 should be a drawn opposite color bishops ending.


I do not think that this is correct
42.Be4 seems to win for white here.

Fruit suggested 42.Kf2 in it's line and only later 42.Be4 but I prefer 42.Be4
immediatly so I do not need to check if 42...e4 saves black

The idea is to put the white king at g6 and play a6

If the black king saves g7 and is in the f file white can play later d6 and Bc6+
If the black king goes for the a pawn then white may capture g7 h6 and promote
the h pawn.

Uri



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