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Subject: Re: Interesting position (Max Lange attack)

Author: Tord Romstad

Date: 10:47:05 02/11/06

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On February 11, 2006 at 13:17:40, Andre Reffhaug wrote:

>This is an interesting position. Horowitz once commented that Nxd4 was the
>clearly best move, but after 40 minutes Rybka still feels that Nc3 is the best
>move.
>
>Any opinions?
>
>
>[D]r1b1k1r1/ppp1n1Pp/5p1B/2bq4/2pp4/5N2/PPP2PPP/RN1QR1K1 w q - 0 3

Glaurung 060210 agrees with Rybka (analysis on a Intel Core Duo 2 GHz,
two threads, 128 MB hash):

2 +96 26 249 Nc3 Qh5
3 +104 26 734 Nc3 Qh5 Nb5
4 +128 27 2099 Nc3 Qh5 Nb5 Kd8
5 +129 27 4409 Nc3 Qh5 Nb5 Qxh6 Nxc7+ Kf7 Nxa8 Qxg7
6 +117 29 10658 Nc3 Qh5 Nb5 Bd6 Nxd6+ cxd6 Qe2
7 +129 33 29923 Nc3 Qh5 Nb5 Qxh6 Nxc7+ Kf7 Nxa8 Qxg7
8 +112 39 58715 Nc3 Qh5 Nb5 Qxh6 Nxc7+ Kf7 Nxa8 Qxg7 g3
9 +109 79 293445 Nc3 Qh5 Nb5 Qxh6 Nxc7+ Kf7 Nxa8 Qxg7 Nh4 Kf8
10 +81 138 653137 Nc3 Qh5 Nb5 Qxh6 Nxc7+ Kf7 Nxa8 Qxg7 Nh4 Bg4 f3
11 +143 483 2733514 Nc3 Qh5 Nb5 Qxh6 Nxc7+ Kf7 Nxa8 Qxg7 g3 Bh3 Nxd4 Bxd4 Qxd4
Rxa8 Qxc4+ Kf8
12 +134 622 3569383 Nc3 Qh5 Nb5 Qxh6 Nxc7+ Kf7 Nxa8 Qxg7 g3 Bh3 Nxd4 Bxd4 Qxd4
Rxa8 Qxc4+ Kf8
13 +84 1210 7215670 Nc3 Qh5 Nb5 Qxh6 Nxc7+ Kf7 Nxa8 Qxg7 g3 Bg4 Nc7 Bd6 Qxd4
Bxc7 Qxc4+ Kf8
14 +87 4525 27710981 Nc3 Qh5 Nb5 Qxh6 Nxc7+ Kf7 Nxa8 Qxg7 g3 Bg4 Nc7 Rc8 Nb5 Kg8
Re4
15 +126 8748 53891567 Nc3 Qh5 Nb5 Qxh6 Nxc7+ Kf7 Qe2 d3 Qe4 b5 Qxa8 Qxg7 g3 dxc2
Nxb5 Bd7 Qb7
16 +139 20673 127415967 Nc3 Qh5 Ne4 Qxh6 Nxc5 Qxg7 g3 c3 Qxd4 cxb2 Rab1 Bg4 Rxb2
Rd8 Qa4+ c6 Nxb7 Bxf3 Nxd8 Kxd8 Qxa7

Tord




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