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Wednesday, July 27, 2011

Grandmaster's Game.

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A grandmaster pays attention to every slight detail and tries not to miss the slightest nuance, the least factor which might affect the assessment.
Here is the example of such scrupulous care :

Bronstein wrote this about the position of above diagram "Every positional achievement, in this case the pawn at d6 which engages the attention of the black pieces, is important not in itself but in its link with other combinational factors. In this position the factors for White are
1) The unguarded pawn at c5
2) The weakened cover of the black king
3) The constant possibility of advancing the pawn to d7.
4) Control over c7 and e7, combined with the attempt to control the e-file or c-file.

For Black the factors are :

1) The chance to surround the d6 pawn from three sides.
2) The attack on the Q-side by a majority of pawns.
3) The possibility Nh5 to drive the queen from her storng post.

By comparing and weighing the chances for each side the masters normally reach more or less objective conclusions which are called the assessment of the position.

Euwe now played 22 a3 which
Bronstein criticized as not corresponding to the demands of the position. He recommends instead 22 b3 to put brake on the advance of the Queen side pawns, or 22 Rxe6 fe 23 Qe5 with active play against Black's many weaknesses that would be full compensation for the exchange.

After 22 ---Re8 23 Ne4 Nxe4 24 Rxe4 Qd7 25 Qc5 Rd8 26 Qxe5 Rxd6 the players agreed to draw.