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Subject: Re: test position, king attack am

Author: Richard Pijl

Date: 15:06:49 12/28/04

Go up one level in this thread


On December 28, 2004 at 11:37:18, Vincent Lejeune wrote:

>[d]r4r2/ppp1k1p1/2np1n1p/2b1p2q/4P1b1/1B1P1N1P/PPPN1PP1/R1BQ1RK1 w - - 0 1
>avoid 12.hxg4 because Nxg4 13.c3 Rxf3 14.Nxf3 Rf8 and Rxf3 later.

The Baron on P4-2.4 has a negative score for hxg4 within a minute, but takes a
little more than 4 minutes before an alternative is found:

 ply       time        nodes   score  pv
  5( 8)&   0:00.44     12561   +3.22  h3xg4 Nf6xg4 Qd1-e1 Nc6-d4 a2-a4
  5( 8).   0:00.44     15231   +3.22  h3xg4 Nf6xg4 Qd1-e1 Nc6-d4 a2-a4
  6(11)&   0:00.71     50034   +2.31  h3xg4 Nf6xg4 c2-c3 Ng4xf2 Rf1xf2
                                      Bc5xf2 Kg1xf2
  6(11).   0:00.77     62034   +2.31  h3xg4 Nf6xg4 c2-c3 Ng4xf2 Rf1xf2
                                      Bc5xf2 Kg1xf2
  7(12)&   0:00.99    108246   +2.15  h3xg4 Nf6xg4 Qd1-e1 Rf8xf3 Nd2xf3
                                      Nc6-d4 Bc1-f4 Nd4xf3 g2xf3 Bc5xf2 (Rf1xf2)
                                      (Ng4xf2) (Kg1xf2) (e5xf4)
  7(12).   0:01.15    143046   +2.15  h3xg4 Nf6xg4 Qd1-e1 Rf8xf3 Nd2xf3
                                      Nc6-d4 Bc1-f4 Nd4xf3 g2xf3 Bc5xf2 (Rf1xf2)
                                      (Ng4xf2) (Kg1xf2) (e5xf4)
  8(14)+   0:03.95    714392   +2.58  h3xg4 (Nf6xg4) (c2-c3) (Ng4xf2) (Rf1xf2)
                                      (Bc5xf2) (Kg1xf2)
  8(14)&   0:04.39    818941   +3.10  h3xg4 Nf6xg4 c2-c3 Ng4xf2 Rf1xf2
                                      Bc5xf2 Kg1xf2 Ke7-d8 Kf2-e1
  8(14).   0:04.83    905256   +3.10  h3xg4 Nf6xg4 c2-c3 Ng4xf2 Rf1xf2
                                      Bc5xf2 Kg1xf2 Ke7-d8 Kf2-e1
  9(15)&   0:06.86   1350674   +1.69  h3xg4 Nf6xg4 c2-c3 Rf8xf3 Nd2xf3
                                      Ra8-f8 Bb3-e6 Ng4xf2 Rf1xf2 Bc5xf2 Kg1xf2
                                      (Ke7xe6)
  9(15).   0:08.73   1728961   +1.69  h3xg4 Nf6xg4 c2-c3 Rf8xf3 Nd2xf3
                                      Ra8-f8 Bb3-e6 Ng4xf2 Rf1xf2 Bc5xf2 Kg1xf2
                                      (Ke7xe6)
 10(16)&   0:11.64   2397882   +1.69  h3xg4 Nf6xg4 c2-c3 Rf8xf3 Nd2xf3
                                      Ra8-f8 Bb3-e6 Ng4xf2 Rf1xf2 (Bc5xf2)
(Kg1xf2)
                                      (Ke7xe6)
 10(16).   0:13.90   2877707   +1.69  h3xg4 Nf6xg4 c2-c3 Rf8xf3 Nd2xf3
                                      Ra8-f8 Bb3-e6 Ng4xf2 Rf1xf2 (Bc5xf2)
(Kg1xf2)
                                      (Ke7xe6)
 11(18)&   0:20.60   4408492   +1.69  h3xg4 Nf6xg4 c2-c3 Rf8xf3 Nd2xf3
                                      Ra8-f8 Bb3-e6 Ng4xf2 Rf1xf2 Bc5xf2 Kg1xf2
                                      Ke7xe6
 11(18).   0:25.65   5484620   +1.69  h3xg4 Nf6xg4 c2-c3 Rf8xf3 Nd2xf3
                                      Ra8-f8 Bb3-e6 Ng4xf2 Rf1xf2 Bc5xf2 Kg1xf2
                                      Ke7xe6
 12(20)&   0:56.02  11633557   -0.67  h3xg4 Nf6xg4 c2-c3 Rf8xf3 Nd2xf3
                                      Ra8-f8 g2-g3 Rf8xf3 Kg1-g2 Ng4xf2 Rf1-h1
                                      Rf3xg3 Kg2xg3 (Nf2xh1) (Kg3-g2)
 12(20)&   4:08.92  47519836   +0.66  c2-c3 Bg4xh3 g2xh3 Qh5xh3 Nf3-h2
                                      Qh3xd3 Kg1-h1 Qd3-h3 Bb3-c4 Ke7-d8
 12(20)&   5:51.03  68141060   +0.70  a2-a4 Nc6-d4 c2-c3 Nd4xf3 Nd2xf3
                                      Bg4xf3 Qd1xf3 Qh5xf3 g2xf3 Nf6-h5 d3-d4
                                      e5xd4 Bb3-d5 (d4xc3)



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