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Subject: Re: McShane-Johannessen Malmo 2003 (1/2-1/2)

Author: Anthony Cozzie

Date: 08:14:12 08/05/03

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On August 05, 2003 at 10:45:15, Martin Andersen wrote:

>A critical position is :
>
>[D]3r2rk/pp2bpp1/q1p1p2p/3nP2N/2P3QP/3R4/PP1B1PP1/1K5R w
>
>Here there are several candidate moves,
>Rg3, Bg5, Rf3 and Rc1 as played by McShane.
>After 21.Rc1 and 21...Nd3 !? Black got the upper hand.
>
>Crafty 19.3 suggests 21.Rg3 with a big plus, but it
>seems unclear after 21...Nb4 22.Bxb4 Bxb4
>Hardware: Athlon 2400+.
>
>Other analyzes ?
>
>Martin.

Zappa wobbles back and forth between Rf3 and Rg3 with an eval of about +1 for
white, then fails high on Rg3 at depth 11.  Unfortunately it doesn't give its
PV.

1. Rg3 Nc7 2.Bg5 Bxg5 3. hxg5 hxg5
 = (2.09)        Depth: 11/35        00:03:06

After the line you give (Rg3 Nb4 etc), Zappa says that white wins a pawn or more
with Qf4.

anthony



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