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Subject: Re: A hard test position now again!

Author: Miguel A. Ballicora

Date: 09:00:24 04/08/02

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On April 08, 2002 at 08:42:09, Ingo Bauer wrote:

>Hi
>
>This is what Y0.99.56 is thinking:
>
>Engine: Yace 0.99.56
>by Dieter Buerssner
>
> 10.30	 0:00 	+1.53 	1.Kb2 Kg7 2.Kc3 Kf6 3.Kd3 Kg7 4.Kd2 Kf6 5.Ke3 Kg7 (856.261)
>974.1
> 11.01	 0:01 	+1.53 	1.Kb2 Kg7 2.Kc3 Kf6 3.Kd3 Kg7 4.Kd2 Kf6 5.Ke2 Kg7 6.Ke3
>(1.286.041) 962.6
> 11.30	 0:01 	+1.53 	1.Kb2 Kg7 2.Kc3 Kf6 3.Kd3 Kg7 4.Kd2 Kf6 5.Ke2 Kg7 6.Ke3
>(1.918.780) 976.4
> 12.01	 0:02 	+1.53 	1.Kb2 Kg7 2.Kc3 Kf6 3.Kb3 Kg7 4.Kb2 Kf6 5.Ka3 Kg7 6.Kb3 Kf6
>(2.728.290) 970.9
> 12.30	 0:03 	+1.53 	1.Kb2 Kg7 2.Kc3 Kf6 3.Kb3 Kg7 4.Kb2 Kf6 5.Ka3 Kg7 6.Kb3 Kf6
>(3.874.453) 969.0
> 13.01	 0:06 	+1.48 	1.Kb2 Kg7 2.Kc3 Kf6 3.Kb3 Kg7 4.Kb2 Kf6 5.Kc3 Kg7 6.Kd2 Kf6
>7.Ke2 Kg7 8.Ke3 (6.349.095) 954.1
> 13.30	 0:09 	+1.48 	1.Kb2 Kg7 2.Kc3 Kf6 3.Kb3 Kg7 4.Kb2 Kf6 5.Kc3 Kg7 6.Kd2 Kf6
>7.Ke2 Kg7 8.Ke3 (8.874.406) 963.6
> 14.01	 0:12 	+1.49 	1.Kb2 Kg7 2.Kc3 Kf6 3.Kd2 Kg7 4.Ke2 Kf6 5.Kf3 Bd7 6.Rexd7
>Rxd7 7.Bxd7 Kg7 (12.450.062) 960.1
> 14.30	 0:17 	+1.49 	1.Kb2 Kg7 2.Kc3 Kf6 3.Kd2 Kg7 4.Ke2 Kf6 5.Kf3 Bd7 6.Rexd7
>Rxd7 7.Bxd7 Kg7 (17.051.756) 964.9
> 15.01	 0:25 	+1.51 	1.Kb2 Kg7 2.Kc3 Kf6 3.Kd2 Kg7 4.Ke2 Kf6 5.Kf3 Kg7 6.Kf2 Kg8
>7.Kg3 Kg7 8.Kf3 (24.432.024) 953.8
> 15.30	 0:35 	+1.51 	1.Kb2 Kg7 2.Kc3 Kf6 3.Kd2 Kg7 4.Ke2 Kf6 5.Kf3 Kg7 6.Kf2 Kg8
>7.Kg3 Kg7 8.Kf3 (33.750.377) 956.6
> 16.01	 0:52 	+1.57 	1.Kb2 Kg7 2.Kc3 Kf6 3.Kd2 Kg7 4.Ke2 Kf6 5.Kf3 Kg7 6.Kf2 Kg8
>7.Kg3 Kg7 8.Kf3 Kf6 (49.047.246) 939.5
> 16.30	 1:14 	+1.57 	1.Kb2 Kg7 2.Kc3 Kf6 3.Kd2 Kg7 4.Ke2 Kf6 5.Kf3 Kg7 6.Kf2 Kg8
>7.Kg3 Kg7 8.Kf3 Kf6 (69.081.945) 927.2
> 17.01	 1:59 	+1.59 	1.Kb2 Kg7 2.Kc3 Kf6 3.Kd2 Kg7 4.Ke2 Kf6 5.Kf3 Kg7 6.Kf2 Kg8
>7.Kg3 Kg7 8.Kf3 Kf6 9.Ke3 (106.675.736) 891.1
> 17.30	 2:49 	+1.59 	1.Kb2 Kg7 2.Kc3 Kf6 3.Kd2 Kg7 4.Ke2 Kf6 5.Kf3 Kg7 6.Kf2 Kg8
>7.Kg3 Kg7 8.Kf3 Kf6 9.Ke3 (147.915.523) 870.1
> 18.01	 4:26 	+1.59 	1.Kb2 Kg7 2.Kc3 Kf6 3.Kd2 Kg7 4.Ke2 Kf6 5.Kf3 Kg7 6.Kf2 Kg8
>7.Kg3 Kg7 8.Kf3 Kf6 9.Ke3 Kg7 (225.110.366) 845.3
> 18.30	 6:11 	+1.59 	1.Kb2 Kg7 2.Kc3 Kf6 3.Kd2 Kg7 4.Ke2 Kf6 5.Kf3 Kg7 6.Kf2 Kg8
>7.Kg3 Kg7 8.Kf3 Kf6 9.Ke3 Kg7 (313.467.029) 844.6
> 19.01	15:28 	+1.59 	1.Kb2 Kg7 2.Kb3 Kf6 3.Be2 (660.644.421) 711.7
> 19.02	16:58 	+1.60++	1.a5 bxa5 2.bxa5 Kg7 (714.789.151) 701.9
> 19.02	18:19 	+1.99++	1.a5 bxa5 2.bxa5 Kg7 3.Kb4 Kf6 (768.792.533) 699.4
> 19.01	38:57 	+2.65 	1.a5 Kg7 2.axb6 Kg8 3.f6 Bxg4 4.Re5 Kh7 5.Rxg5 Bd1 6.Rg7+
>Kh6 7.Rgxf7 Rxf7 8.Rxf7 Ra8+ 9.Kb2 Kg6 10.Rxb7 Kxf6 (1.574.037.103) 673.4
> 19.30	41:19 	+2.65 	1.a5 Kg7 2.axb6 Kg8 3.f6 Bxg4 4.Re5 Kh7 5.Rxg5 Bd1 6.Rg7+
>Kh6 7.Rgxf7 Rxf7 8.Rxf7 Ra8+ 9.Kb2 Kg6 10.Rxb7 Kxf6 (1.663.921.402) 671.1
> 20.01	67:15 	+2.71 	1.a5 Kg7 2.axb6 Kf6 3.Ba4 Kg7 4.Bb3 Rd6 5.Ka4 Rxb6 6.Bxd5
>Ra6+ 7.Kb5 Rf6 8.Bb3 Kg8 9.Rxf7 R6xf7 10.Bxf7+ Rxf7 11.Rxc8+ Kg7 12.Re8 Rc7
>13.d5 (2.654.079.165) 657.6
> 20.26	71:37 	+2.71 	1.a5 Kg7 2.axb6 Kf6 3.Ba4 Kg7 4.Bb3 Rd6 5.Ka4 Rxb6 6.Bxd5
>Ra6+ 7.Kb5 Rf6 8.Bb3 Kg8 9.Rxf7 R6xf7 10.Bxf7+ Rxf7 11.Rxc8+ Kg7 12.Re8 Rc7
>13.d5 (2.833.698.624) 659.4
>best move: a4-a5 time: 71:36.998 min  n/s: 659.457  nodes: 2.833.698.624 TB: 245
>
>So the 0.99.56 comes into my attention again!
>
>Ingo

What's so special about this position? I did not spend time to analyze it
but it look like anything wins. Gaviota does not find a5 but it is included
in the line. Is that so different? That is what YACE wanted to do too.

Regards,
Miguel


       186   1:      0.0    +1.24  a4-a5    b6xa5    b4xa5
       549   2:      0.0    +1.27  Ka3-b3   Rd8-d6   Re7-e5
      1415   3:      0.0    +1.28  Ka3-b3   Rd8-d6   a4-a5    b6xa5
                                   b4xa5
      2474   4       0.0    +1.46  Ka3-b3   Kf6-g7   a4-a5    b6xa5
                                   b4xa5
      3024   4:      0.0    +1.46  Ka3-b3   Kf6-g7   a4-a5    b6xa5
                                   b4xa5
      3721   5       0.1    +1.46  Ka3-b3   Kf6-g7   a4-a5    b6xa5
                                   b4xa5    <EMPTY>  <-transp
      9164   5:      0.1    +1.46  Ka3-b3   Kf6-g7   a4-a5    b6xa5
                                   b4xa5    <EMPTY>  <-transp
     11684   6       0.1    +1.46  Ka3-b3   Kf6-g7   a4-a5    b6xa5
                                   b4xa5    Kg7-f6   Re7-e5
     17225   6:      0.2    +1.46  Ka3-b3   Kf6-g7   a4-a5    b6xa5
                                   b4xa5    Kg7-f6   Re7-e5
     35064   7       0.4    +1.45  Ka3-b3   Kf6-g7   a4-a5    b6xa5
                                   b4xa5    Kg7-f6   Kb3-b4   Rd8-d6
                                   <EMPTY>  <-transp
     56080   7:      0.6    +1.45  Ka3-b3   Kf6-g7   a4-a5    b6xa5
                                   b4xa5    Kg7-f6   Kb3-b4   Rd8-d6
                                   <EMPTY>  <-transp
     77389   8       0.8    +1.63  Ka3-b3   Kf6-g7   a4-a5    b6xa5
                                   b4xa5    Kg7-f6   Kb3-b4   Rd8-d6
                                   Kb4-c5
    108249   8:      1.1    +1.63  Ka3-b3   Kf6-g7   a4-a5    b6xa5
                                   b4xa5    Kg7-f6   Kb3-b4   Rd8-d6
                                   Kb4-c5
    151593   9       1.5    +1.82  Ka3-b3   Kf6-g7   a4-a5    b6xa5
                                   b4xa5    Kg7-f6   Kb3-b4   Kf6-g7
                                   Kb4-c5   Kg7-f6   Re7-e5   <-transp
    217545   9:      2.1    +1.82  Ka3-b3   Kf6-g7   a4-a5    b6xa5
                                   b4xa5    Kg7-f6   Kb3-b4   Kf6-g7
                                   Kb4-c5   Kg7-f6   Re7-e5   <-transp
    328858  10       3.3    +1.82  Ka3-b3   Kf6-g7   a4-a5    b6xa5
                                   b4xa5    Kg7-f6   Kb3-b4   Kf6-g7
                                   Kb4-c5   Kg7-f6   Re7-e5   <EMPTY>
                                   <-transp
    493937  10:      4.7    +1.82  Ka3-b3   Kf6-g7   a4-a5    b6xa5
                                   b4xa5    Kg7-f6   Kb3-b4   Kf6-g7
                                   Kb4-c5   Kg7-f6   Re7-e5   <EMPTY>
                                   <-transp
    864142  11       8.5    +1.80  Ka3-b3   Kf6-g7   a4-a5    Kg7-f6
                                   a5xb6    Kf6-g7   Kb3-a4   Kg7-f6
                                   Re7-e5   Rf8-h8   <-transp
   2195808  11:     21.9    +1.80  Ka3-b3   Kf6-g7   a4-a5    Kg7-f6
                                   a5xb6    Kf6-g7   Kb3-a4   Kg7-f6
                                   Re7-e5   Rf8-h8   <-transp
   2727919  12      27.4    +1.87  Ka3-b3   Kf6-g7   a4-a5    Kg7-f6
                                   a5xb6    Kf6-g7   Kb3-a4   Kg7-f6
                                   Bb5-f1   Rd8-e8   Re7xe8   Rf8xe8
                                   b4-b5
   5140327  12:     51.7    +1.87  Ka3-b3   Kf6-g7   a4-a5    Kg7-f6
                                   a5xb6    Kf6-g7   Kb3-a4   Kg7-f6
                                   Bb5-f1   Rd8-e8   Re7xe8   Rf8xe8
                                   b4-b5
   7007791  13      71.5    +2.11  Ka3-b3   Kf6-g7   a4-a5    Kg7-f6
                                   a5xb6    Kf6-g7   Bb5-e2   Rd8-d6
                                   Be2-f3   Kg7-f6   Kb3-a4   Kf6-g7
                                   <-transp
  15368639  13:    157.1    +2.11  Ka3-b3   Kf6-g7   a4-a5    Kg7-f6
                                   a5xb6    Kf6-g7   Bb5-e2   Rd8-d6
                                   Be2-f3   Kg7-f6   Kb3-a4   Kf6-g7
                                   <-transp
  20753744  14     218.4    +1.95  Ka3-b3   Kf6-g7   a4-a5    Kg7-f6
                                   a5xb6    Kf6-g7   Bb5-e2   Rd8-e8
                                   Re7xe8   Rf8xe8   Be2-f3   Re8-d8
                                   Rc7-c5   Bc8-d7   Bf3xd5



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