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Subject: Re: Another interesting Anti-Null move position (from a real game)

Author: Steffen Jakob

Date: 20:47:00 06/14/04

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On June 14, 2004 at 16:31:17, Jaime Benito de Valle Ruiz wrote:

>[d]8/8/1p4p1/p5kp/Pp1QP1Pq/1P6/6K1/8 w - - 0 62
>
>White moves and wins!
>Can your engine find the right answer and give the proper "crushing" score
>(around 9 pawns!) along with a proper PV? How long does it take?

Hossa 1.163, Intel(R) Xeon(TM) CPU 2.80GHz

 depth   value    time    nodes pv
    1    -3.10    0.00       21 1.d4d1 h4xg4 2.d1xg4 h5xg4
  2/1    -2.07    0.00      115 1.d4xb6 h4xg4 2.Kf2 g4xe4 3.b6xa5 Kf4
  6/1    -0.80    0.01      160 1.g4xh5 g6xh5
   <1>   -0.80    0.01      344 1.g4xh5 g6xh5
    2    -0.80    0.01      419 1.g4xh5 g6xh5
   <2>   -0.80    0.01     1154 1.g4xh5 g6xh5
    3    -0.74    0.02     1820 1.g4xh5 h4g4 2.Kf2 g6xh5 3.d4xb6 g4xe4
                                4.b6xa5 Kg4
   <3>   -0.74    0.03     3840 1.g4xh5 h4g4 2.Kf2 g6xh5 3.d4xb6 g4xe4
                                4.b6xa5 Kg4
    4    -0.75    0.03     5144 1.g4xh5 h4g4 2.Kf2 g4f4 3.Kg1 f4g3
                                4.Kf1 g6xh5 5.d4xb6 g3xb3 6.b6xa5 Kg4
   <4>   -0.75    0.05    10852 1.g4xh5 h4g4 2.Kf2 g4f4 3.Kg1 f4g3
                                4.Kf1 g6xh5 5.d4xb6 g3xb3 6.b6xa5 Kg4
    5    -0.80    0.05    12797 1.g4xh5 h4g4 2.Kf2 g4f4 3.Kg1 f4g3
                                4.Kf1 g3f3 5.Kg1 g6xh5 6.d4xb6 f3xb3
                                7.b6xa5 Kg4
! 3/5    -0.33    0.09    24063 1.d4d2
!   5    +0.79    0.10    28481 1.d4d2 Kxg4 2.d2e3 b5 3.a4xb5 a4
                                4.e3f3 Kg5 5.b3xa4
   <5>   +0.79    0.12    32586 1.d4d2 Kxg4 2.d2e3 b5 3.a4xb5 a4
                                4.e3f3 Kg5 5.b3xa4
    6    +0.79    0.15    45597 1.d4d2 Kxg4 2.d2e3 b5 3.a4xb5 a4
                                4.e3f3 Kg5 5.b3xa4
   <6>   +0.79    0.20    62126 1.d4d2 Kxg4 2.d2e3 b5 3.a4xb5 a4
                                4.e3f3 Kg5 5.b3xa4
!   7    +1.21    0.21    63817 1.d4d2
!   7    +1.41    0.28    91855 1.d4d2 Kxg4 2.d2e3 b5 3.a4xb5 a4
                                4.b3xa4 b3 5.e3f3 Kg5 6.a5
   <7>   +1.41    0.35   119099 1.d4d2 Kxg4 2.d2e3 b5 3.a4xb5 a4
                                4.b3xa4 b3 5.e3f3 Kg5 6.a5
    8    +1.52    0.51   183106 1.d4d2 Kxg4 2.d2e3 b5 3.a4xb5 a4
                                4.b3xa4 b3 5.e3xb3 h4e1 6.b3e6 Kg5
   <8>   +1.52    0.62   226130 1.d4d2 Kxg4 2.d2e3 b5 3.a4xb5 a4
                                4.b3xa4 b3 5.e3xb3 h4e1 6.b3e6 Kg5
!   9    +1.94    0.63   229965 1.d4d2
!   9    +2.43    0.93   360940 1.d4d2 Kxg4 2.d2e3 b5 3.a4xb5 a4
                                4.b3xa4 b3 5.e3xb3 Kf4 6.b3f7 Ke5
                                7.f7xg6
   <9>   +2.43    1.23   495695 1.d4d2 Kxg4 2.d2e3 b5 3.a4xb5 a4
                                4.b3xa4 b3 5.e3xb3 Kf4 6.b3f7 Ke5
                                7.f7xg6
!  10    +2.85    1.43   563753 1.d4d2
!  10    +5.01    1.84   748191 1.d4d2 Kxg4 2.d2e3 b5 3.a4xb5 a4
                                4.e3f3 Kg5 5.b6 h4e1 6.b7 e1d2
                                7.f3f2 d2d6 8.f2g3 d6xg3 9.Kxg3
  <10>   +5.01    2.62  1098997 1.d4d2 Kxg4 2.d2e3 b5 3.a4xb5 a4
                                4.e3f3 Kg5 5.b6 h4e1 6.b7 e1d2
                                7.f3f2 d2d6 8.f2g3 d6xg3 9.Kxg3
!  11    +5.43    2.80  1158599 1.d4d2
!  11    +9.63    3.67  1549861 1.d4d2 Kxg4 2.d2e3 b5 3.a4xb5 a4
                                4.b6 a4xb3 5.b7 b2 6.b7b8Q h4h1
                                7.Kxh1 b2b1Q 8.e3g1 b1xg1 9.Kxg1 h4
                                10.b8xb4 h3
  <11>   +9.63    5.12  2211213 1.d4d2 Kxg4 2.d2e3 b5 3.a4xb5 a4
                                4.b6 a4xb3 5.b7 b2 6.b7b8Q h4h1
                                7.Kxh1 b2b1Q 8.e3g1 b1xg1 9.Kxg1 h4
                                10.b8xb4 h3
   12    +9.87    7.37  3212298 1.d4d2 Kxg4 2.d2e3 b5 3.a4xb5 a4
                                4.b6 a4xb3 5.b7 b2 6.b7b8Q h4h1
                                7.Kxh1 b2b1Q 8.e3g1 b1xg1 9.Kxg1 g5
                                10.b8xb4 Kf4 11.b4d4
  <12>   +9.87   10.58  4746526 1.d4d2 Kxg4 2.d2e3 b5 3.a4xb5 a4
                                4.b6 a4xb3 5.b7 b2 6.b7b8Q h4h1
                                7.Kxh1 b2b1Q 8.e3g1 b1xg1 9.Kxg1 g5
                                10.b8xb4 Kf4 11.b4d4
   13   +10.09   17.69  7937270 1.d4d2 Kxg4 2.d2e3 b5 3.a4xb5 a4
                                4.b6 a4xb3 5.b7 b2 6.b7b8Q h4h1
                                7.Kxh1 b2b1Q 8.e3g1 b1xg1 9.Kxg1 h4
                                10.b8xb4 g5 11.e5 Kf5 12.b4d6
  <13>  +10.09   27.88 12703913 1.d4d2 Kxg4 2.d2e3 b5 3.a4xb5 a4
                                4.b6 a4xb3 5.b7 b2 6.b7b8Q h4h1
                                7.Kxh1 b2b1Q 8.e3g1 b1xg1 9.Kxg1 h4
                                10.b8xb4 g5 11.e5 Kf5 12.b4d6
   14   +10.22   48.86 21848121 1.d4d2 Kxg4 2.d2e3 b5 3.a4xb5 a4
                                4.b6 a4xb3 5.b7 b2 6.b7b8Q h4h1
                                7.Kxh1 b2b1Q 8.e3g1 b1xg1 9.Kxg1 h4
                                10.b8xb4 g5 11.b4f8 h3 12.Kh2
  <14>  +10.22    1:15 33990082 1.d4d2 Kxg4 2.d2e3 b5 3.a4xb5 a4
                                4.b6 a4xb3 5.b7 b2 6.b7b8Q h4h1
                                7.Kxh1 b2b1Q 8.e3g1 b1xg1 9.Kxg1 h4
                                10.b8xb4 g5 11.b4f8 h3 12.Kh2
!  15   +10.64    1:17 35111156 1.d4d2
!  15   +10.81    2:23 63675328 1.d4d2 Kxg4 2.d2e3 b5 3.a4xb5 a4
                                4.b6 a4xb3 5.b7 b2 6.b7b8Q h4h1
                                7.Kxh1 b2b1Q 8.e3g1 b1xg1 9.Kxg1 Kg5
                                10.b8xb4 Kf4 11.b4d6 Kg5 12.e5 h4
                                13.e6
  <15>  +10.81    3:42 99625522 1.d4d2 Kxg4 2.d2e3 b5 3.a4xb5 a4
                                4.b6 a4xb3 5.b7 b2 6.b7b8Q h4h1
                                7.Kxh1 b2b1Q 8.e3g1 b1xg1 9.Kxg1 Kg5
                                10.b8xb4 Kf4 11.b4d6 Kg5 12.e5 h4
                                13.e6
!  16   +11.23    3:50 103274565 1.d4d2


Greetings,
Steffen.



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