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.

Once we have chosen the right formation in the centre we have created opportunities for our pieces and laid the foundation of subsequent victory.

Bobby Fischer is the greatest Chess genius of all time!

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.

All candidate moves should be identified at once and listed in one's head. This job cannot be done piecemeal, by first examining one move and then look at another.

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.

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