The placing of the centre pawns determines the "topography" of a game of chess.

The proponents of Steinitz' theory - Tarrasch and his supporters - tried to express Steinitz' teaching in the form of laconic rules, and as often happens in such cases, they went too far. The laconic tended to become dogmatic, and chess began to lose its freshness, originality and charm.

Just as the pianist practices the most complicated pieces to improve the technique of his fingers, so too a grandmaster must keep his vision in trim by daily analysis of positions with sharp possibilities, and this applies whether he prefers such positions in his play or not.

I soon realized that it is not enough for a master simply to analyse variations scrupulously just like an accountant. He must learn to work out which particular moves he should consider and then examine just as many variations as necessary - no more and no less.

The study of typical plans is something that the leading grandmasters devote a great deal of time to. I would say that the most far-seeing of them devote as much time to this as to the study of openings.

The main thing that develops positional judgement, that perfects it and makes it many-sided, is detailed analytical work, sensible tournament practice, a self-critical attitude to your games and a rooting out of all the defects in your play.

It has always been recognized that chess is an art, and its best practitioners have been described as artists.