An opening to be well constructed should be made quickly (walker), consequently the same piece should not be moved twice until the other pieces are in play. (Steinitz) Free Chess Moves Video Course Here

The exception to this rule are when a greater or at least an equal loss of time cab b inflicted upon your adversary, also when an improper move on his part brings an important advantage within measurable distance.

There are two styles of development; the attacking and the defensive. In one the pieces are spread about to secure the greatest possible commend of the board. In the other they are kept together mutually supporting or defending each other. Free Chess Moves Video Course Here

Whichever method is adopted the player should be prepared to change from one to the other at short notice, that is unless he sees a certain win by the first course.

A man in play should not be exchanged for a man out of play. The exception is when to retreat would entail the loss of the attack. Free Chess Moves Video Course Here

To gain a Pawn in the opening it is worth while to lose one move. To gain a pawn it is seldom worth while to lose one move and the attack, against a good player. To expend two moves with a knight in order to win the exchange is rarely advisable. Free Chess Moves Video Course Here