Author: John Merlino
Date: 14:10:29 09/14/03
Go up one level in this thread
On September 14, 2003 at 06:21:23, Sune Larsson wrote:
>
> [D]3r1rk1/4R3/5p1p/pQ2p2b/3pPq2/PP1P4/5PB1/5RK1 w - - 0 1
>
> This is a position from Shields,G - Schön,W, corr-2003.
>
> White played 32.Qxa5? and lost quickly after 32.-Bf3 33.Bxf3 Kh8!
> 34.Bg2 Rg8 35.Ra1 Qg4 36.Kf1 Qxg2+ 37.Ke2 Qg4+ 38.Kd2 Rc8 39.Rc7 Rxc7
> 40.Qxc7 Rc8 0-1.
>
> Much better was to keep black occupied on the 7th with 32.Qc4+ Bf7
> 33.Qc7 or 32.Qb7. ("And black has nothing serious" - Schön.)
>
> Test: Avoid 32.Qxa5 and instead choose one of the moves mentioned above.
>
> /S
Chessmaster 9000, on a P4-2.4, switches to Qc4+ in eight seconds:
Time Depth Score Positions Moves
0:00 1/3 1.33 2647 1.Qxa5 Bf7 2.b4 Rc8
0:00 1/4 1.38 6683 1.Qxa5 Rc8 2.Rc7 Rxc7 3.Qxc7
0:00 1/5 1.12 23283 1.Qxa5 Rc8 2.b4 Rc2 3.Qa4
0:00 1/6 0.81 88029 1.Qxa5 Bf3 2.Bxf3 Qxf3 3.Re1 Kh8
4.Qd2 Rg8+ 5.Kf1
0:01 1/7 0.81 175668 1.Qxa5 Bf3 2.Bxf3 Qxf3 3.Re1 Kh8
4.Qd2 Rg8+ 5.Kf1
0:02 1/8 0.00 372351 1.Qxa5 Bf3 2.Bxf3 Qxf3 3.Qc7 Qg4+
4.Kh2 Qh4+ 5.Kg1 Qg5+ 6.Kh2 Qh4+
0:08 1/8 0.10 1477236 1.Qc4+ Bf7 2.Qc7 Rc8 3.Qxa5 Bxb3
4.Qb6 Bf7 5.a4 Rc2
0:18 1/9 0.14 3161318 1.Qc4+ Bf7 2.Qa4 Rc8 3.b4 axb4
4.axb4 Rc1 5.b5 Rxf1+ 6.Bxf1
0:30 1/10 0.06 5611633 1.Qc4+ Bf7 2.Qc7 Rde8 3.Rxe8 Rxe8
4.Qxa5 Bxb3 5.Qc7 Bf7 6.a4 Ra8
1:07 2/11 0.10 13140590 1.Qc4+ Bf7 2.Qc7 Rc8 3.Qxa5 Bxb3
4.Qb5 Bf7 5.a4 Rc2 6.a5 Qg4 7.Rb1
jm
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