Author: Dirk Frickenschmidt
Date: 11:45:58 10/25/98
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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