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Subject: Re: Positional move for the amateurs (Junior 8)

Author: Kurt Utzinger

Date: 12:04:25 07/30/04

Go up one level in this thread


On July 30, 2004 at 10:55:07, Albert Silver wrote:

>The following position arose in a famous game between Taimanov and Karpov in
>1973. Karpov sacrificed a pawn to prevent white from pushing c4, and obtain
>excellent play against the hanging pawns using the two files. I expect that most
>of the top engines should find this move, but the amateurs should find it much
>harder. How does your engine do?
>
>                                         Albert
>
>[D]2q2rk1/p1rn1ppp/1p2pn2/8/Q2P4/2P2N2/P2B1PPP/2RR2K1 b - - 0 17
>
>17...Rc4! 18.Qxa7 Qc6 19.Qa3 Rc8
>

New game
2q2rk1/p1rn1ppp/1p2pn2/8/Q2P4/2P2N2/P2B1PPP/2RR2K1 b - - 0 1

Analysis by Junior 8: (Duron 1.3/64 MB hash)

1...e5 2.dxe5
  ±  (1.02)   Depth: 3   00:00:00
1...h5 2.Qb5
  ²  (0.44)   Depth: 3   00:00:00
1...h6 2.Qb5
  ²  (0.32)   Depth: 3   00:00:00
1...a5 2.Qb5
  ²  (0.29)   Depth: 3   00:00:00
1...Ne4 2.Qc2 Ndf6 3.Re1 Nxd2 4.Nxd2
  =  (0.14)   Depth: 3   00:00:00
  =  (0.04)   Depth: 6   00:00:00  6kN
1...a6 2.c4 Qb8 3.Qa3 a5
  =  (0.01)   Depth: 6   00:00:00  8kN
  ²  (0.59)   Depth: 9   00:00:00  37kN
1...Ne4 2.c4
  ²  (0.34)   Depth: 9   00:00:00  279kN
1...Rc4 2.Qxa7 Qc6 3.Qa3 h6 4.Re1 Nd5 5.Qb3 Rc8 6.Qb1 Nxc3 7.Bxc3 Rxc3 8.Rxc3
Qxc3
  =  (-0.24)   Depth: 9   00:00:00  420kN
  ³  (-0.32)   Depth: 21   00:18:26  951719kN

(Utzinger, MyTown 30.07.2004)



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