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Subject: Re: Tough position

Author: Joachim Rang

Date: 08:07:06 11/05/02

Go up one level in this thread


On November 05, 2002 at 08:32:02, robert flesher wrote:

>Junior can see another way to reach the position. I believe black didnt defend
>well.
>
>New position
>r4rk1/4q1pp/2p2n2/N1Pp1p2/NP1Pn3/3QP3/6PP/R4RK1 b - - 0 1
>
>Analysis by Junior 7:
>
>1...Qe6 2.Nb6 Rae8 3.Qa6
>  ²  (0.28)   Depth: 6   00:00:00
>1...Qe6 2.Nb6 Rae8 3.b5 cxb5 4.c6
>  =  (0.14)   Depth: 9   00:00:00  18kN
>1...Qe6 2.Nb6 Rae8 3.b5 cxb5 4.c6
>  =  (0.14)   Depth: 9   00:00:00  18kN
>1...Qe6 2.Nb6 Rae8 3.b5 cxb5 4.c6
>  =  (0.14)   Depth: 9   00:00:00  18kN
>1...Qe6 2.Nb6 Rae8 3.b5 cxb5 4.c6
>  =  (0.14)   Depth: 9   00:00:00  18kN
>1...Qc7 2.Nb6 Ng4 3.g3 Rae8 4.Qe2 Kh8
>  =  (0.02)   Depth: 9   00:00:00  88kN
>1...Qc7 2.Ra2 Ng4 3.g3 Rae8 4.Rfa1 Kh8 5.Nb6
>  =  (-0.11)   Depth: 12   00:00:00  555kN
>1...Qc7 2.Ra2 Ng4 3.g3 Rae8 4.Rg2 Kh8 5.Nb6 Re7
>  =  (-0.17)   Depth: 15   00:00:05  3917kN
>1...Qc7 2.h3 Ng3 3.Rf3 Rfe8 4.Nb6 Ra7 5.b5 cxb5 6.Qxb5 Rb8 7.Rf2
>  =  (-0.18)   Depth: 17   00:00:30  22500kN
>1...Qc7 2.h3 Ng3 3.Rf3 Nfe4 4.Nb6 Rad8 5.b5 cxb5 6.Qxb5 Nc3 7.Qb3 Nce2+ 8.Kf2 f4
>9.exf4
>  =  (-0.18)   Depth: 18   00:01:34  66295kN


sorry, but that's a completely other position and not winning at all...
but let run Junior 7 till depth 22, than it finds the winning move:

r4rk1/4q1pp/2p2n2/N1Pp1p2/NP1Pn3/3QP3/6PP/R4RK1 b - - 0 1

Analysis by Junior 7:

21...De6 22.Sb6 Tae8 23.Da6
  ²  (0.28)   Tiefe: 6   00:00:00  5kN
21...De6 22.Sb6 Tae8 23.b5 cxb5 24.c6
  =  (0.14)   Tiefe: 9   00:00:00  18kN
21...Dc7 22.Sb6 Sg4 23.g3 Tae8 24.De2 Kh8
  =  (0.02)   Tiefe: 9   00:00:00  88kN
21...Dc7 22.Ta2 Sg4 23.g3 Tae8 24.Tfa1 Kh8 25.Sb6
  =  (-0.11)   Tiefe: 12   00:00:01  555kN
21...Dc7 22.Ta2 Sg4 23.g3 Tae8 24.Tg2 Kh8 25.Sb6 Te7
  =  (-0.17)   Tiefe: 15   00:00:04  3915kN
21...Dc7 22.h3 Sg3 23.Tf3 Tfe8 24.Sb6 Ta7 25.b5 cxb5 26.Dxb5 Tb8 27.Tf2
  =  (-0.18)   Tiefe: 17   00:00:27  22445kN
21...Dc7 22.h3 Sg3 23.Tf2 Sfe4 24.Tf3 Tfe8 25.Sb6 Ta7 26.b5 cxb5 27.Dxb5 Tb8
28.Tf4 Dd8
  =  (-0.22)   Tiefe: 19   00:02:06  97512kN
21...Dc7 22.h3 Sg3 23.Tf3 Sfe4 24.Sb6 Ta7 25.b5 cxb5 26.Dxb5 Tb8 27.Dd3
  =  (-0.16)   Tiefe: 20   00:06:56  352608kN
21...Dc7 22.h3 Sg3 23.Tfe1 Kh8 24.Sb6 Tae8 25.b5 cxb5 26.Dxb5 f4 27.Dd3 Te4
28.exf4 Txe1+ 29.Txe1 Dxf4
  =  (-0.16)   Tiefe: 21   00:17:51  961503kN
21...Dc7 22.h3 Sg3 23.Tfe1 Tfb8 24.Sb6 Ta7 25.b5 cxb5 26.Dxb5 Sfe4 27.Db3 Dd8
28.Dxd5+ Dxd5 29.Sxd5 Tb2
  =  (-0.05)   Tiefe: 22   00:38:30  2050984kN
21...Sg4 22.h3 Dh4 23.De2 Sg3 24.Dd3 Tae8 25.Tfe1 Dg5 26.Sxc6
  =  (-0.18)   Tiefe: 22   01:38:09  705323kN
21...Sg4 22.h3 Dh4 23.De2 Tae8 24.Tfe1 Sgf2 25.Tf1 f4 26.exf4 Dxf4 27.Sxc6 Dc7
28.b5 Sg3 29.Dxf2 Sxf1
  ³  (-0.28)   Tiefe: 23   02:44:09  347364kN



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