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Subject: Re: Eluding about ten testpositions

Author: Uri Blass

Date: 12:57:16 05/19/01

Go up one level in this thread


On May 19, 2001 at 15:25:33, Miguel A. Ballicora wrote:

>On May 19, 2001 at 10:47:28, Jonathan Lee wrote:
>
>>There must be about ten testpositions that give softwares a hard time, although
>>the second best move on some of them can happen.
>>Number 22 eludes all softwares, wow!  If this is true, maybe that one should be
>>calculated in days not minutes.
>>Jonathan (128 message)
>
>If the programs do not understand how bad or good a bishop is, it might
>take years.
>
>Miguel

Here is some analysis of Deep Fritz and it has a4 in the main line
the question is if it has to be in the first move.

[D]r3kb1r/pp1b1ppp/1q2pn2/n2p4/3P1B2/2PB1N2/PPQ2PPP/RN2K2R w KQkq - 0 1

Analysis by Deep Fritz:

11.Ne5 Bb5 12.Bxb5+ Qxb5 13.Nd2
  ²  (0.31)   Depth: 4/13   00:00:00  2kN
11.Ne5 Bb5 12.Bxb5+ Qxb5 13.Nd2
  ²  (0.31)   Depth: 4/13   00:00:00  2kN
11.Ne5 Bb5 12.Bxb5+ Qxb5 13.Nd2
  ²  (0.31)   Depth: 4/13   00:00:00  2kN
11.Ne5 Bb5 12.Bxb5+ Qxb5 13.Nd2
  ²  (0.31)   Depth: 4/13   00:00:00  2kN
11.Ne5 Bb5 12.Bxb5+ Qxb5 13.Nd2
  ²  (0.31)   Depth: 4/13   00:00:00  2kN
11.Ne5 Bb5 12.Bxb5+ Qxb5 13.Nd2
  ²  (0.31)   Depth: 4/13   00:00:00  2kN
11.Ne5 Bb5 12.Bxb5+ Qxb5 13.Nd2
  ²  (0.31)   Depth: 4/13   00:00:00  2kN
11.Bg5!
  ²  (0.34)   Depth: 4/16   00:00:00  5kN
11.Bg5 Ne4 12.Bc1 Bc6 13.Ne5
  ²  (0.38)   Depth: 5/15   00:00:00  12kN
11.Be5!
  ²  (0.41)   Depth: 5/15   00:00:00  14kN
11.Be5! Bb5 12.Bxf6 Bxd3
  ²  (0.47)   Depth: 5/18   00:00:00  17kN
11.Be5 Bb5 12.Bxb5+ Qxb5 13.Bxf6 gxf6 14.Nbd2 Nc4 15.Nxc4
  =  (0.22)   Depth: 6/15   00:00:00  33kN
11.Ne5!
  =  (0.25)   Depth: 6/15   00:00:00  42kN
11.Qe2!
  ²  (0.28)   Depth: 6/17   00:00:00  54kN
11.Qe2! Nc4 12.b3 Nd6 13.Ne5 Rc8
  ²  (0.38)   Depth: 6/19   00:00:00  62kN
11.Qe2 Be7 12.Ne5 Nc6
  ²  (0.41)   Depth: 7/21   00:00:00  152kN
11.Qe2 Be7 12.Ne5 Nc6 13.0-0 Nxe5 14.Bxe5 0-0 15.Re1
  ²  (0.47)   Depth: 8/28   00:00:00  307kN
11.Qe2 Rc8 12.Ne5 Nc6 13.0-0 Nxe5 14.Bxe5 Bd6 15.Bxd6 Qxd6 16.Nd2
  ²  (0.41)   Depth: 9/28   00:00:01  672kN
11.Qe2 Rc8 12.0-0 Be7 13.Ne5 Nc6 14.Bg5 Qc7 15.Bxf6 gxf6 16.Nxd7 Qxd7
  ²  (0.41)   Depth: 10/28   00:00:02  1486kN
11.Qe2 Rc8 12.0-0 Nc6 13.Re1 Be7 14.Bg5 0-0 15.Ne5 Qc7 16.Bxf6 Bxf6
  ²  (0.38)   Depth: 11/29   00:00:06  3498kN
11.Qe2 Rc8 12.0-0 Nc6 13.Ne5 Nxe5 14.Bxe5 Be7 15.a4 0-0 16.a5 Qc6
  ²  (0.38)   Depth: 12/31   00:00:14  8516kN
11.Qe2 a6 12.a3 Bb5 13.Bxb5+ Qxb5 14.Qxb5+ axb5 15.Nbd2 Nc4 16.Rb1 b4
  ²  (0.34)   Depth: 13/38   00:00:57  33453kN
11.Qe2 a6 12.a3 Nb3 13.Ra2 Bd6 14.Ne5 Bxe5 15.dxe5 Ne4 16.Bxe4 dxe4
  ²  (0.34)   Depth: 14/43   00:02:32  89118kN
11.Qe2 a6 12.a4 Be7 13.Ne5 Rc8 14.0-0 Qb3 15.Re1 Nc4 16.Bxc4
  ²  (0.41)   Depth: 15/41   00:07:47  280607kN
11.Qe2 a6 12.a4 Rc8 13.Ne5 Bd6 14.0-0 Qc7 15.Re1 0-0 16.Bg5
  ²  (0.38)   Depth: 16/44   00:20:42  749545kN
11.Qe2 a6 12.a4 Nh5 13.Bg5 h6 14.Be3 Bd6 15.Ne5 Nf6
  ²  (0.38)   Depth: 17/46   00:51:31  1915273kN
11.Qe2 a6 12.a4 Nh5 13.Bg5 h6 14.Be3 Bd6 15.Ne5 Nf6
  ²  (0.34)   Depth: 18/49   02:52:02  6426504kN

(Blass, Tel-Aviv 14.05.2001)



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