Here is a definition which correctly reflects the course of thought and action of a grandmaster: - The plan in a game of chess is the sum total of successive strategical operations which are each carried out according to separate ideas arising from the demands of the position.

Once in a Moscow chess club I saw how two first-category players knocked pieces off the board as they were exchanged, so that the pieces fell onto the floor. It was as if they were playing skittles and not chess!

Experience and the constant analysis of the most varied positions builds up a store of knowledge in a player's mind enabling him often at a glance to assess this or that position.

After a great deal of discussion in Soviet literature about the correct definition of a combination, it was decided that from the point of view of a methodical approach it was best to settle on this definition - A combination is a forced variation with a sacrifice.

Go through detailed variations in your own time, think in a general way about the position in the opponent's time and you will soon find that you get into time trouble less often, that your games have more content to them, and that their general standard rises.

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.

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