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Subject: Re: Position from Fischer-Petrosian, cm 7 (1971)

Author: Dirk Frickenschmidt

Date: 12:10:21 10/25/98

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On October 25, 1998 at 14:45:58, Dirk Frickenschmidt wrote:

Sorry, mistyped: it should mean: I don't yet see a concrete *black* threat after
the exchange sacrifice.

>While looking over some Fischer games again, I found an interesting position:
>
>Fischer,R (2760) - Petrosian,T (2640) [B42]
>Buenos Aires cf Buenos Aires (7), 1971
>
>1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 a6 5.Bd3 Nc6 6.Nxc6 bxc6 7.0-0 d5 8.c4 Nf6
>9.cxd5 cxd5 10.exd5 exd5 11.Nc3 Be7 12.Qa4+ Qd7
>Played very daring from Petrosian's view.
>Now my question is: What is wrong about playing Bb5+ in this position, like most
>or all programs probably would?
>Here's the position in FEN-format:
>r1b1k2r/3qbppp/p4n2/3p4/Q7/2NB4/PP3PPP/R1B2RK1 w kq - 0 13
>
>Of course black gets some initiative after the possible exchange sacrifice
>(13.Bb5+ ab 14.Qxa8).
>But I am not certain how much.
>And I don't yet see a concrete white threat.
>
>Fischer's decicion to allow queen's exchange was sound anyway, giving him a nice
>ending with a pawn majority at the queenside against an isolated black pawn on
>d5 (becoming weak in the endgame).
>
>Does anyone of you have some GM comment on this position, or a program which
>would *not* prefer to play Bb5?
>Main variation?
>
>The game ended:
>13.Re1 Qxa4 14.Nxa4 Be6 15.Be3 0-0 16.Bc5 Rfe8 17.Bxe7 Rxe7 18.b4 Kf8 19.Nc5 Bc8
>20.f3 Rea7 21.Re5 Bd7 22.Nxd7+ Rxd7 23.Rc1 Rd6 24.Rc7 Nd7 25.Re2 g6 26.Kf2 h5
>27.f4 h4 28.Kf3 f5 29.Ke3 d4+ 30.Kd2 Nb6 31.Ree7 Nd5 32.Rf7+ Ke8 33.Rb7 Nxf4
>34.Bc4 1-0
>
>Regards
>from Dirk



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