Author: Roy Eassa
Date: 11:46:06 12/19/02
Go up one level in this thread
On December 19, 2002 at 14:21:21, Martin Giepmans wrote:
>On December 19, 2002 at 12:23:09, José Antônio Fabiano Mendes wrote:
>
>> Fischer vs Stein, 1967 Sousse Interzonal
>> [D]3q3r/4b1k1/4P1p1/rpp2p1p/1nn2Q2/5N1P/P4PP1/RBB1R1K1 w
>> And here Fischer played 29. Bxf5, a move that baffles me.
>> Please see ==> http://www.mark-weeks.com/chess/67fs07.htm
>
>White seems to be in trouble and perhaps Bxf5 is the only way out.
>
>SpiderChess chooses Bxf5 after 5 minutes and 20 seconds (AMD 2000 XP)
>but the score is still negative after 22 minutes.
>
>PV at depth 13:
>0:21:59 - 0.78 B1xF5 G6xF5 F3-E5 C4xE5 E1xE5 D8-D4 F4-G3 G7-H7 E5xF5
> D4-D1 G1-H2 H8-F8 C1-D2 H5-H4 G3-C7 D1xA1 C7xE7 A1-G7
> E7xH4 H7-G8 F5xC5
>
>Martin
I've analyzed this game extensively and I think both sides can improve from the
above. I also do think that Bxf5 was Fischer's best move, which wins unless
Black plays perfectly:
1.Bxf5!? {other moves are worse}
1...gxf5
[1...Qf8 2.Be4 Qxf4 3.Bxf4 was actually played]
2.Qg3+
[2.Ne5 Nxe5 3.Qxe5+ Bf6 4.Qg3+ Kh7 5.Qf4 unclear but not bad]
2...Kh7 3.Ng5+ Bxg5 4.Bxg5 Qb8
[4...Ra3! =+]
5.Qh4 Qe8 6.Rad1 Ra7
[6...Nb6 7.Rd8 Qg6 8.e7 Ra8 9.Re6! +-
(9.e8Q Rxe8 10.Rexe8 Rxd8 11.Rxd8 also wins) ]
7.Rd8! Qg6 8.e7! Re8
[8...Ra8 9.e8Q
(or 9.Re6! +- )
9...Rxe8 10.Rexe8 +-]
9.Re6 Raxe7 10.Bxe7 Qxe6 11.Qxh5+ Qh6
[11...Kg7 12.Rxe8 Qe1+ 13.Kh2 Qe5+ 14.g3 and Black gets mated]
12.Qf7+ Qg7 13.Qxe8 and Black cannot avoid mate
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