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Subject: Re: Positional test - The Frozen Bishop

Author: Ed Schröder

Date: 08:58:38 02/28/01

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On February 28, 2001 at 11:48:39, Sune Larsson wrote:

>
>  [D]r1bq1rk1/ppp2pp1/3b1n1p/2p1p3/4P2B/2NP1N2/PPP2PPP/R2Q1RK1 w - - 0 1
>
>  Here is an example of a definitive no-no. This position happened in
>  Winter(!) - Capablanca, London 1922. Here white was a bit careless
>  and played 1.Nd5?  after 1.-g5 2.Nxf6+ Qxf6 3.Bg3 Bg4 4.h3 Bxf3
>  5.Qxf3 Qxf3 6.gxf3, the proud bishop was reduced to a simple pawn.
>  This preacher never saw the daylight anymore...
>
>  Test1: 1.Nd5? is a clear no-no and should be evaluated with penalty
>         points.
>
>  Test2: If 1.Nd5? is faced, your program should give definite +scores
>         to the line above. And choose this path in play.
>
>  Sune


No big score differences between Nd5? and Nd2 but Nd2 looks stabile
enough and Nd5? is refuted for the correct reason.

Ed

--------------------

Loading...

Engine version   : Rebel Century 3.1
Hash table size  :  60 Mb

r1bq1rk1/ppp2pp1/3b1n1p/2p1p3/4P2B/2NP1N2/PPP2PPP/R2Q1RK1 w - -

00:00:01  04.00  0.28  1.Nd5 Be7 2.Nxe7 Qxe7 3.a4  [4862]
00:00:01  05.00  0.17  1.Nd5 g5 2.Nxf6 Qxf6 3.Bg3 Bg4  [12069]
00:00:02  07.00  0.20  1.Nd5 g5 2.Nxf6 Qxf6 3.Bg3 Be6 4.a4  [83956]
00:00:03  08.00  0.09  1.Nd5 g5 2.Nxf6 Qxf6 3.Bg3 Be6 4.a4 Rad8 5.Qe2  [109885]
00:00:08  09.00  0.08  1.Nd5 g5 2.Nxf6 Qxf6 3.Bg3 Bg4 4.h3 Bxf3 5.Qxf3 Qxf3
6.gxf3  [192882]
00:00:14  09.05  0.09  1.Nd2 c6 2.Bg3 Be6 3.Nc4 Qc7 4.Nxd6 Qxd6 5.f4 Qd4 6.Bf2
[211229]
00:00:23  10.00  0.07  1.Nd2 c6 2.Nc4 b5 3.Nxd6 Qxd6 4.a4 Bg4 5.Qd2 a6 6.f4
[231689]
00:00:47  11.00  0.09  1.Nd2 c6 2.Nc4 Bc7 3.a4 Be6 4.Qf3 Rc8 5.Rad1  [244735]
00:02:09  12.00  0.11  1.Nd2 c6 2.Nc4 Bc7 3.a4 Be6 4.Qf3 Rc8 5.Rad1 Re8 6.Qg3
[254756]




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