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Subject: Re: Deep Sacrifice from aCorrespondence game so far only HIARCS findsNxe5

Author: Matthew White

Date: 15:31:16 01/16/03

Go up one level in this thread


On January 15, 2003 at 20:26:03, ALI MIRAFZALI wrote:

>The follwing position is from the Correspondence Game between Alik Zilberberg
>(2590) and the 8th World Correspondence Champion Jorn Sloth (2620) of Denmark
>[D]r2nnk2/2pb4/3p1p2/1q1Pp1p1/2N1P1Pp/1NQ4P/4BP2/1R4K1 w
>Alik Zilberberg played 39.Nxe5!!  and the former World Champion Resigned after
>39....Qxe2 40.Nxd7+ Ke7 41.Rel Qb5 42.Nxf6 Nxf6 43.e5 dxe5 44.Rxe5+ Kf7 45.Rxg5
>Qb6 46.Rf5 Kg6 47.Nc5 Nxd5 48.Rxd5 Qb1+ 49.Kg2 Ra1 50.Rg5+ (1-0)
>HIARCS8 finds39.Nxe5!! after 1:42 running at 1800 MHZ.The list of programs that
>have failed even after a very long think include:Fritz Chessmaster Mchess Comet
>GNU chess and the list keeps growing...................
Ruffian finds it, loses it, and finds it again. The PV is pretty close, though
the evaluation is slightly off. Run on a P3 1GHZ with 512MB hash.

  r2nnk2/2pb4/3p1p2/1q1Pp1p1/2N1P1Pp/1NQ4P/4BP2/1R4K1 w - -
  Depth   Time  Score    Best line
   8/17   1.20  -0.40    Nbd2 Qa4 Bd3 Nf7 Bc2 Qa2 Bb3 Qa6
   8/19   1.86   x.xx    Bd3
   8/19   1.99  -0.37    Bd3 Qb8 Nc5 Qc8 Nxd7+ Qxd7 Bc2 Ra2 Qb3 Ra8
   8-->   2.45  -0.37    Bd3 Qb8 Nc5 Qc8 Nxd7+ Qxd7 Bc2 Ra2 Qb3 Ra8
   9/19   2.85  -0.37    Bd3 Qb8 Nc5 Qc8 Nxd7+ Qxd7 Bc2 Nf7 Rb7 Ra2 f3
   9/20   4.24   x.xx    Qd3
   9/20   4.74  -0.35    Qd3 Qb7 Nc5 Qc8 Nxd7+ Qxd7 Bd1 Nf7 Rb7 Ra2 Bf3
   9-->   5.97  -0.35    Qd3 Qb7 Nc5 Qc8 Nxd7+ Qxd7 Bd1 Nf7 Rb7 Ra2 Bf3
  10/21   7.78  -0.42    Qd3 Qb7 Nc5 Qc8 Nxd7+ Qxd7 Bd1 Kg8 Bc2 Nf7 Rb7 Ra2
  10/21   7.95   x.xx    Bd3
  10/21   8.58  -0.32    Bd3 Qb8 Nc5 Qc8 Nxd7+ Qxd7 Na5 Qa4 Nc4 c6 dxc6 Qxc6
                         Rd1
  10-->  12.55  -0.32    Bd3 Qb8 Nc5 Qc8 Nxd7+ Qxd7 Na5 Qa4 Nc4 c6 dxc6 Qxc6
                         Rd1
  11/23  13.78  -0.34    Bd3 Qb8 Nc5 Qc8 Nxd7+ Qxd7 Ne3 c6 Nf5 Ng7 dxc6 Nxc6
                         Nh6
  11-->  20.94  -0.34    Bd3 Qb8 Nc5 Qc8 Nxd7+ Qxd7 Ne3 c6 Nf5 Ng7 dxc6 Nxc6
                         Nh6
  12/26  26.27  -0.40    Bd3 Qb8 Nc5 Qc8 Nxd7+ Qxd7 Bc2 Kg8 Ne3 Kh8 Nf5 Ng7
                         Nxg7 Qxg7 Bd3
  12-->  53.74  -0.40    Bd3 Qb8 Nc5 Qc8 Nxd7+ Qxd7 Bc2 Kg8 Ne3 Kh8 Nf5 Ng7
                         Nxg7 Qxg7 Bd3
  13/28   1:01  -0.37    Bd3 Qb8 Nc5 Qc8 Nxd7+ Qxd7 Qd2 Qa4 Ne3 Qa5 Qd1 Qc3
                         Rb3 Qa1 Rb1
  13-->   1:32  -0.37    Bd3 Qb8 Nc5 Qc8 Nxd7+ Qxd7 Qd2 Qa4 Ne3 Qa5 Qd1 Qc3
                         Rb3 Qa1 Rb1
  14/31   2:01  -0.42    Bd3 Qb8 Nc5 Qc8 Nxd7+ Qxd7 Bc2 Kg8 Ne3 Kh8 Qc4 Ng7
                         Bd3 Ra4 Rb4 Ra1+ Bf1
  14/31   2:46   x.xx    Nxe5
  14/33   3:02  -0.03    Nxe5 Qxe2 Nxd7+ Ke7 Nd4 Qa2 Qd3 Kxd7 e5 dxe5 Qh7+
                         Kd6 Nb5+ Kc5 Qe7+ Kc4 Rb4+ Kd3 Qxe8 Qxd5 Nxc7
  14-->   3:55  -0.03    Nxe5 Qxe2 Nxd7+ Ke7 Nd4 Qa2 Qd3 Kxd7 e5 dxe5 Qh7+
                         Kd6 Nb5+ Kc5 Qe7+ Kc4 Rb4+ Kd3 Qxe8 Qxd5 Nxc7
  15/33   4:37  -0.29    Nxe5 Qxe2 Nxd7+ Ke7 Re1 Qb5 Nxf6 Nxf6 e5 dxe5 Rxe5+
                         Kf7 Qxc7+ Qd7 Qc2 Rc8 Qd3 Kg7 Rxg5+ Kh6
  15-->   8:16  -0.29    Nxe5 Qxe2 Nxd7+ Ke7 Re1 Qb5 Nxf6 Nxf6 e5 dxe5 Rxe5+
                         Kf7 Qxc7+ Qd7 Qc2 Rc8 Qd3 Kg7 Rxg5+ Kh6
  16/38   9:59  -0.46    Nxe5 Qxe2 Nxd7+ Ke7 Re1 Qb5 Nxf6 Nxf6 e5 dxe5 Rxe5+
                         Kf7 Qxc7+ Qd7 Qc2 Qc8 Qd3 Ra2 Rxg5 Ke8
  16/38  10:41   x.xx    Bd3

  16/38  94:27  -0.45    Bd3 Qb8 Nc5 Qc8 Nxd7+ Qxd7 Ne3 c5 Bb5 Qc7 Nf5 Rb8
                         Rb3 Nf7 Qc4
  16/38 104:50   x.xx    Qd3
  16--> 123:36  -0.45    Bd3 Qb8 Nc5 Qc8 Nxd7+ Qxd7 Ne3 c5 Bb5 Qc7 Nf5 Rb8
                         Rb3 Nf7 Qc4
  17/38 135:52  -0.46    Bd3 Qb8 Nc5 Qc8 Nxd7+ Qxd7 Ne3 c5 dxc6 Qxc6 Qb3 Qc5
                         Rd1 Ra3 Qb8 Nc6 Qb7 Kg8 Nd5
  17/38 136:58   x.xx    Nxe5
  17/38 138:00     ++    Nxe5
  17/39 141:59  -0.07    Nxe5 Qxe2 Nxd7+ Ke7 Re1 Qb5 e5 Kxd7 exf6 Kc8 Nd4
                         Qd7 Re7 Qa4 f7 Nxf7 Rxf7 Qa1+ Qxa1 Rxa1+ Kg2



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