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Subject: Re: test position movei-diep

Author: Dieter Buerssner

Date: 15:53:48 07/08/04

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On July 08, 2004 at 17:19:36, Uri Blass wrote:

>1r6/4kpp1/b1pp3p/q1n1pP2/Pr2P3/1BN3Q1/P1P3PP/K2RR3 w - - 0 24
>
>How much time does your program need to avoid Qxg7  and does it avoid it because
>it can see a loss or because it see a draw.

Yace:

  6949839  10.554   1.72  8.  24.Qxg7 Rxb3 25.f6+ Kd8 26.Rxd6+ Kc8 27.Rxc6+
                              Kb7 28.Rxc5 Qxc5 29.Qxf7+ Ka8 30.Qg7
  9565382  14.213   1.32  9-- 24.Qxg7 Rxb3 25.f6+ Ke8 26.Qg8+ Kd7 27.Qxf7+
                              Kc8 28.axb3 Qxc3+ 29.Kb1 Nxa4 30.Qe6+ Kb7
                              31.Qe7+ Ka8 32.Rxd6 Qxe1+ 33.Rd1 Qxd1+ 34.Ka2
                              {-950}
 11883374  17.731   0.32  9-- 24.Qxg7 Rxb3 25.f6+ Ke8 26.Qg8+ Kd7 27.Qxf7+
                              Kc8 28.axb3 Qxc3+ 29.Kb1 Nxa4 30.Qe6+ Kb7
                              31.Qe7+ Ka8 32.Rxd6 Qxe1+ 33.Rd1 {-450}
 22669770  32.797  -0.61  9t  24.Qxg7 Rxb3 25.f6+ Kd7 26.Qxf7+ Kc8 27.Nd5
                              cxd5 28.Qg8+ Kc7 29.Qh7+ Nd7 30.axb3 Qc3+
                              31.Kb1 Bd3 32.Rxd3 Qxe1+ 33.Kb2 dxe4 34.Rc3+H
                              Kd8H 35.Qxh6H {-100}
 24539655  35.635  -0.60  9t+ 24.Qe3 Nxb3+ 25.cxb3 Rxb3 26.axb3 Qxc3+ 27.Qxc3
                              Rxb3
 53755547  1:22.2  -0.37  9t  24.Qe3 Rd8 25.Qd2 Ke8 26.Qe3 f6 27.g3 Kf8
                              28.Rb1 {80}
 58554310  1:29.6  -0.36  9t+ 24.h4 Nxb3+ 25.axb3 Rxb3 26.cxb3 Qxc3+ 27.Qxc3
                              Rxb3
 68983199  1:45.8  -0.31  9t  24.h4 Rd4 25.Rxd4 exd4 26.Nb1 Nd7 27.Rd1 Qe5
                              28.Qxe5+ dxe5 29.Nd2 {80}
 73981259  1:54.0  -0.30  9t+ 24.Re3 Nxb3+ 25.axb3 Qb6
 81059558  2:05.1  -0.16  9t  24.Re3 Rd4 25.Rb1 Kf8 26.f6 gxf6 27.Qh4 Rdb4
                              28.Qxf6 {80}
112130101  2:53.5  -0.16  9.  24.Re3 Rd4 25.Rb1 Kf8 26.f6 gxf6 27.Qh4 Rdb4
                              28.Qxf6 {80}
124035640  3:11.3  -0.22 10t  24.Re3 Rd4 25.Rb1 Kf8 26.f6 gxf6 27.Qh4 Ke7
                              28.Rf3 Kd7 {HT} {0}
204121245  5:18.5  -0.22 10.  24.Re3 Rd4 25.Rb1 Kf8 26.f6 gxf6 27.Qh4 Ke7
                              28.Rf3 Kd7 {HT} {0}
267106633  6:56.3  -0.24 11t  24.Re3 Rd4 25.Rc1 Kf8 26.f6 gxf6 27.Qh4 Ke7
                              28.Qxh6 Rd2 29.Rf3 {80}
541085393 14:08.3  -0.23 11t+ 24.Qh4+ Kf8 25.Re3 Qc7 26.f6 gxf6
609653232 16:01.7  -0.20 11t  24.Qh4+ Kf8 25.Re3 Rd4 26.Qh5 Rxd1+ 27.Qxd1 Qd8
                              28.f6 g6 29.Qg4 Ke8 30.Qh4 Rb4 {80}
716656057 18:46.2  -0.20 11.  24.Qh4+ Kf8 25.Re3 Rd4 26.Qh5 Rxd1+ 27.Qxd1 Qd8
                              28.f6 g6 29.Qg4 Ke8 30.Qh4 Rb4 {80}

With another hash size, it failed low to zero at depth 8.

Regards,
Dieter



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