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Subject: Re: Testposition - Tactics

Author: Mihaly Szalai

Date: 08:08:30 09/14/03

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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

New game
3r1rk1/4R3/5p1p/pQ2p2b/3pPq2/PP1P4/5PB1/5RK1 w - - 0 1

Analysis by Junior 8:

1.a4 Be2
  =  (-0.22)   Depth: 3   00:00:00
1.b4 Be2
  =  (-0.18)   Depth: 3   00:00:00
1.Qc6 Rc8
  =  (-0.15)   Depth: 3   00:00:00
1.Qb7 Rc8
  =  (-0.01)   Depth: 3   00:00:00
1.Qb6 Bf3 2.Qxa5
  =  (0.08)   Depth: 3   00:00:00
1.Qb6 Be2 2.Re1 Bxd3 3.Qxa5
  µ  (-0.77)   Depth: 6   00:00:00  3kN
1.Qxa5 Be2 2.Qc7 Bxd3 3.Rg7+ Kh8 4.Re1
  =  (0.25)   Depth: 6   00:00:00  9kN
1.Qxa5 Bf7 2.Qb6 Rb8 3.Rb7 Rxb7 4.Qxb7 Qg4
  ˛  (0.44)   Depth: 9   00:00:00  149kN
1.Qxa5 Bf3 2.Bxf3 Qxf3 3.Qd2 Rf7 4.Qa5
  =  (0.00)   Depth: 12   00:00:01  1873kN
1.Qxa5 Bf3 2.Bxf3 Qxf3 3.Qc7 Qg4+ 4.Kh2 Qf4+ 5.Kh1 Qf3+ 6.Kg1 Qg4+
  =  (0.00)   Depth: 15   00:00:11  11646kN
1.Qxa5 Bf3
  ł  (-0.30)   Depth: 17   00:02:06  125367kN
1.Qb7 Bf7 2.Qa7 Rc8 3.b4 Rc3 4.Qxa5 Rxd3
  ł  (-0.29)   Depth: 17   00:06:56  410314kN
1.Qb7 Bf7 2.Qa7 Ra8 3.Qd7 Rab8 4.Kh1 Rbd8
  ł  (-0.28)   Depth: 18   00:07:31  448042kN
1.Qb7 Bf7 2.Qa7 Rc8 3.b4 axb4 4.axb4 Rce8 5.b5 Rxe7 6.Qxe7 Rc8
  ł  (-0.29)   Depth: 19   00:11:34  685833kN

(Szalai, MyTown 14.09.2003)



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