Chess strategy as such today is still in its diapers, despite Tarrasch's statement 'We live today in a beautiful time of progress in all fields'. Not even the slightest attempt has been made to explore and formulate the laws of chess strategy.

First restrain, next blockade, lastly destroy.

The main Objective of any operation in an open file is the eventual Occupation of the seventh or eighth Rank.

Do not always be thinking of attack! Moves that safeguard your position are often far more prudent.

No pawn exchanges, no file-opening, no attack.

When I today ask myself whence I got the moral courage, for it takes moral courage to make a move (or form a plan) running counter to all tradition, I think I may say in answer, that it was only my intense preoccupation with the problem of the blockade which helped me to do so.

The knight of QB3 is under obligation, the moment the enemy gives him the chance, of undertaking an invasion of the center by Kn-Q5.