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Subject: Re: Fritz-Diep puzzling position

Author: Joachim Rang

Date: 09:30:55 07/12/04

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On July 12, 2004 at 10:14:59, Andrew Dados wrote:

>On July 12, 2004 at 10:14:00, Andrew Dados wrote:
>
>>Since noone posted this then maybe I am missing something obvious here...
>>After Diep move 30... Qd4 this position occured in the game:
>>
>>[D]1r3k1r/3b1ppp/1q1p4/3PpPP1/1pB1P3/pP4P1/P1RQ4/1K5R b - - 0 30
>>
>>Now after 31. Qxd4 exd4 32.Rd2 white (fritz) gets simple position with a pawn
>>up. I am having trouble understanding why 30... Qd4 was played and 31 QxQ was
>>not.
>>
>>-Andrew-
>
>oeps diagram shows position just before Diep played Qd4...

most probably Fritz was simply tuned not to exchange the queens. The alternative
Qe2 is not much worse thatn Qxd4 so it is a matter of taste to change the
queens:

New game
1r3k1r/3b1ppp/3p4/3PpPP1/1pBqP3/pP4P1/P1RQ4/1K5R w - - 0 1

Analysis by Shredder 8 after one hour on Athlon XP 1540 MHz:

1. +- (1.67): 2.Qd2xd4 e5xd4 3.Rc2-d2 h7-h5 4.g5xh6 Rh8xh6 5.Rh1xh6 g7xh6
6.f5-f6 Kf8-g8 7.Bc4-e2 Kg8-h7 8.Be2-h5 Rb8-g8 9.Rd2xd4 Rg8xg3 10.Rd4xb4 Rg3-g1+
11.Kb1-c2 Rg1-g2+ 12.Kc2-d3 Rg2xa2 13.Rb4-b7 Bd7-e8 14.Bh5xf7
2. +- (1.48): 2.Qd2-e2 Rb8-c8 3.f5-f6 g7xf6 4.Rh1-d1 Qd4-b6 5.g5xf6 h7-h5
6.Qe2-d2 Qb6-d4 7.Qd2xd4 e5xd4 8.Rc2-h2 Rh8-g8 9.Rd1xd4 Rg8xg3 10.Rh2xh5 Bd7-g4
11.Rh5-h8#


regards Joachim



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