Development is the process of bringing pieces into the game from their initial positions. It is very important to develop the pieces quickly. A player who gets development advantage may start a quick attack using his numerical superiority of developed units.
Bring Your Pieces into Play
Planning the middle game too early and making premature attacks without sufficient preparation is a common mistake of young players.
Remember: first of all bring all of your pieces into the game and only after that start planning the middle game.
Insure the King
There are many different positions and it’s hard to give a solution for all opening development strategies, but it is definitely good to castle as soon as possible. The king in the center destroys the connection between the flanks, limits our possibility to use central files, and creates a risk of an attack by an opponent’s who has already castled. So don’t underestimate importance of insuring your King.
Control the Center
The center is the heart of the board. It is a strategically important area from which we are close to all other parts of the board. In the opening, players start fighting for the center with pawns. Therefore, it is important to keep the flexibility in our central pawn structure as we’ll be advancing it if necessary. After exchanging some central pawns, players start to fight for the center with pieces. Pieces are usually extremely active in the middle of the board. For example knight a1 controls only two squares while from any central position it controls eight!
So, remember: Control the center and you control the board.