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Friday, July 29, 2011

The Attack On the Square f7.

Pin It Black's weakest square on the board before castling is f7 (f2 for White). Even in the opening stages, threats of a sacrificial asault on f7 (orf2) are common. ; they are usually connected with an attck on the king or even with the idea of mate, in which case the square becomes the focal-point of a mating attack.

Later on, after castling kingside, the rook protects this vulnerable sqaure and its weakness is greaty diminished, while after sactling queenside the weakness of the square has no connection with a mating attack.

The straight forward examples of assaults on f7 are to be seen at the beginning of certain open games, especially in the Petroff Defence, and the Philidor defence. We shall examine one example of this kind.

1 e4 e5 2 Nf3 d6 3 Bc4 Ne7?

Let us allow Black to play this bad move so as to reach a typical crisis over the square f7 as quickly as possible.

4 Ng4 d5 5 exd5 Nxd5 6 Qf3 6 ---Qxg5

After 6 ---Be6 7 Nxe6 fxe6 8 Qh5+ Black loses a pawn and the right to castle.

7 Bxd5

and Black loses at least a pawn. If 7 ---f5 8 Bxb7 e4 9 Qb3 Qxg2 10 Rf1 and white wins.

Naturally, Various attacks can be made on the uncastled king othe than via the e-file or f7, these are only two of the commonest and most typical methods.

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