Download Open Ruy Lopez by Glenn Flear PDF

By Glenn Flear

The Open Ruy Lopez or Open Spanish has withstood the try out of time after a long time. It bargains either side possibilities for a pointy conflict of forces within which the higher ready participant will frequently pop out on best.

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Sample text

On the other hand, the right to move is also a responsibility, for in a zugzwang position, the enforced tempo (legal compulsion to move) is often a losing liability. "). He has reduced the number ofelements to one dynamic and three static. It seems Evans is mixing apples with oranges when he includes pawn structure. This approach is in­ structive, but falls short as a theory, and I don't believe Evans intended it to be. Nevertheless, a computer program that takes into account Evans' elements should do well.

In this pawn structure there is a clear majority. Jtxc6 dxc6. The appraisal of a piece's value in a given position is much more complex. Castling on opposite sides creates a basic imbalance in king position. Here A proper evaluation is possible by con­ sidering each applicable element, and is strongly position-dependent. is a position from a recent student game that featured opposite-side castling in the Exchange Variation of the French ' Defense: , .. ,. When evaluating an entire position's material, there is one additional but all­ important complexity, that of imbalance.

L;Ie51 and the white king has the necessary tempi either to aid in the promotion of the pawn after 3 ... 'itt d 6 or to prevent B l ack from promoting after 3 . 'ittf4. In the 68 The Elements line 3 . h3 4. 'ittd6 the white king gets to d6 from h8 in four moves via e5, while in the line 3 ... 'ittf4 it gets to f4 in four moves, also via e5. Thus the equal shortest distance to both key points d6 and f4 can be through e5. This stunning example is a perfect il­ lustration that on the chessboard, a strictly Euclidian evaluation of speed could be misleading by as large a factor as '1/2 (the ratio of the distance of one square along the diagonal to one square along the horizontal or vertical).

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