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Subject: Re: Is white in deep trouble or slightly ahead?

Author: Richard Pijl

Date: 02:00:13 09/08/04

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On September 07, 2004 at 23:38:57, Dann Corbit wrote:

>Crafty 19.17 output at 900 seconds on 2.2 GHz AMD 64 bit:
>
>[D]rnbqk1nr/pppp1ppp/8/8/1b3p2/8/PBPPP1PP/RN1QKBNR w KQkq - acd 15; acn
>1390050317; acs 900; ce -182; pv Bxg7 Qh4+ g3 fxg3 Bg2 gxh2+ Kf1 hxg1=Q+ Kxg1
>Qg5 Bxh8 h5 e3 h4 Qf3 Be7 Qf4 Qc5 Be5 Na6;
>
>Shredder 7.04 analysis on the same machine:
>
>    17/48	10:42	 362.900.920	565.087	+0.20	Bb2xg7 Qd8h4+ g2g3 f4xg3 Bf1g2 g3xh2+
>Ke1f1 h2xg1Q+ Kf1xg1 Qh4g5 Bg7xh8 Ng8f6 Bh8xf6 Qg5xf6 Nb1c3 Qf6g7 Rh1h4 Bb4xc3
>Kg1f1 Bc3xa1 Rh4xh7 Qg7xh7

The Baron (Xeon 2.8) shows an increasing score for white, although still
negative at the point where I stopped it:

 ply       time        nodes   score  pv
  5(11)&   0:00.14     20688   -2.19  h2-h4 Ng8-f6 Bb2-e5 d7-d5 Be5xf4
  5(13)&   0:00.19     31795   -1.91  Ng1-f3 Ng8-f6 Bb2-e5 d7-d5 Be5xf4
  5(13).   0:00.19     32409   -1.91  Ng1-f3 Ng8-f6 Bb2-e5 d7-d5 Be5xf4
  6(14)&   0:00.28     51943   -2.11  Ng1-f3 Ng8-f6 a2-a3 Bb4-c5 Bb2-e5 d7-d5
  6(14)&   0:00.42     85991   -1.64  Bb2xg7 Qd8-h4 g2-g3 f4xg3 Ng1-f3 g3-g2
                                      Nf3xh4 g2xh1Q Nh4-f3 d7-d5
  6(14).   0:00.48    100928   -1.64  Bb2xg7 Qd8-h4 g2-g3 f4xg3 Ng1-f3 g3-g2
                                      Nf3xh4 g2xh1Q Nh4-f3 d7-d5
  7(16)+   0:01.14    286435   -1.29  Bb2xg7 (Qd8-h4) (g2-g3) (f4xg3) (Bf1-g2)
(g3xh2)
                                      (Ke1-f1) (h2xg1Q) (Kf1xg1) (Qh4-e7)
(Bg7xh8) (Bb4xd2)
  7(16)&   0:01.36    355209   -0.85  Bb2xg7 Qd8-h4 g2-g3 f4xg3 Bf1-g2 g3xh2
                                      Ke1-f1 h2xg1Q Kf1xg1 Qh4-g5 Bg7xh8 Ng8-f6
  7(16).   0:01.45    377225   -0.85  Bb2xg7 Qd8-h4 g2-g3 f4xg3 Bf1-g2 g3xh2
                                      Ke1-f1 h2xg1Q Kf1xg1 Qh4-g5 Bg7xh8 Ng8-f6
  8(18)+   0:02.86    777837   -0.50  Bb2xg7 (Qd8-h4) (g2-g3) (f4xg3) (Bf1-g2)
(g3xh2)
                                      (Ke1-f1) (h2xg1Q) (Kf1xg1) (Qh4-g5)
(Bg7xh8) (Bb4-c5)
                                      (d2-d4) (Nb8-c6)
  8(18)&   0:03.20    900006   -0.43  Bb2xg7 Qd8-h4 g2-g3 f4xg3 Bf1-g2 g3xh2
                                      Ke1-f1 Bb4-c5 d2-d4 Bc5xd4 Bg7xd4 Ng8-f6
  8(18).   0:03.28    919400   -0.43  Bb2xg7 Qd8-h4 g2-g3 f4xg3 Bf1-g2 g3xh2
                                      Ke1-f1 Bb4-c5 d2-d4 Bc5xd4 Bg7xd4 Ng8-f6
  9(18)&   0:06.47   1877815   -0.54  Bb2xg7 Qd8-h4 g2-g3 f4xg3 Bf1-g2 g3xh2
                                      Ke1-f1 h2xg1Q Kf1xg1 Qh4-g5 Bg7xh8 Ng8-f6
                                      c2-c3 Bb4-c5 d2-d4
  9(18).   0:06.97   2002823   -0.54  Bb2xg7 Qd8-h4 g2-g3 f4xg3 Bf1-g2 g3xh2
                                      Ke1-f1 h2xg1Q Kf1xg1 Qh4-g5 Bg7xh8 Ng8-f6
                                      c2-c3 Bb4-c5 d2-d4
 10(22)&   0:17.92   5380403   -0.35  Bb2xg7 Qd8-h4 g2-g3 f4xg3 Bf1-g2 g3xh2
                                      Ke1-f1 h2xg1Q Kf1xg1 Qh4-g5 Bg7xh8 Ng8-f6
                                      c2-c3 Bb4-c5 d2-d4 Qg5-e3
 10(22).   0:19.34   5746169   -0.35  Bb2xg7 Qd8-h4 g2-g3 f4xg3 Bf1-g2 g3xh2
                                      Ke1-f1 h2xg1Q Kf1xg1 Qh4-g5 Bg7xh8 Ng8-f6
                                      c2-c3 Bb4-c5 d2-d4 Qg5-e3
 11(22)&   0:39.81  12315764   -0.31  Bb2xg7 Qd8-h4 g2-g3 f4xg3 Bf1-g2 g3xh2
                                      Ke1-f1 h2xg1Q Kf1xg1 Qh4-g5 Bg7xh8 Ng8-f6
                                      c2-c3 Bb4-c5 e2-e3 h7-h6 Rh1-h3
 11(22).   0:44.34  13545013   -0.31  Bb2xg7 Qd8-h4 g2-g3 f4xg3 Bf1-g2 g3xh2
                                      Ke1-f1 h2xg1Q Kf1xg1 Qh4-g5 Bg7xh8 Ng8-f6
                                      c2-c3 Bb4-c5 e2-e3 h7-h6 Rh1-h3
 12(24)&   1:37.03  29594896   -0.23  Bb2xg7 Qd8-h4 g2-g3 f4xg3 Bf1-g2 g3xh2
                                      Ke1-f1 h2xg1Q Kf1xg1 Qh4-g5 Bg7xh8 Ng8-f6
                                      e2-e3 Bb4-e7 Nb1-c3 Qg5-g8 Nc3-b5
 12(24).   1:42.56  31068245   -0.23  Bb2xg7 Qd8-h4 g2-g3 f4xg3 Bf1-g2 g3xh2
                                      Ke1-f1 h2xg1Q Kf1xg1 Qh4-g5 Bg7xh8 Ng8-f6
                                      e2-e3 Bb4-e7 Nb1-c3 Qg5-g8 Nc3-b5
 13(30)&   4:17.91  74878095   -0.22  Bb2xg7 Qd8-h4 g2-g3 f4xg3 Bf1-g2 g3xh2
                                      Ke1-f1 h2xg1Q Kf1xg1 Qh4-g5 Bg7xh8 h7-h6
                                      e2-e3 Ng8-f6 Qd1-f1 Bb4-e7 Qf1-f4 Qg5xf4
                                      (e3xf4)
 13(30).   4:42.48  81685829   -0.22  Bb2xg7 Qd8-h4 g2-g3 f4xg3 Bf1-g2 g3xh2
                                      Ke1-f1 h2xg1Q Kf1xg1 Qh4-g5 Bg7xh8 h7-h6
                                      e2-e3 Ng8-f6 Qd1-f1 Bb4-e7 Qf1-f4 Qg5xf4
                                      (e3xf4)
 14(28)&  12:14.75 216623542   -0.13  Bb2xg7 Qd8-h4 g2-g3 f4xg3 Bf1-g2 g3xh2
                                      Ke1-f1 Qh4-g5 Bg7xh8 h2xg1Q Kf1xg1 h7-h6
                                      Nb1-c3 Bb4xc3 Bh8xc3 d7-d5 e2-e3 Bc8-g4
                                      Qd1-f1 Bg4-f5
 14(28).  12:48.59 225578849   -0.13  Bb2xg7 Qd8-h4 g2-g3 f4xg3 Bf1-g2 g3xh2
                                      Ke1-f1 Qh4-g5 Bg7xh8 h2xg1Q Kf1xg1 h7-h6
                                      Nb1-c3 Bb4xc3 Bh8xc3 d7-d5 e2-e3 Bc8-g4
                                      Qd1-f1 Bg4-f5

Richard.



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