Chess opening principles

You must learn at least a few chess openings.

You can read detailed explications on the chess openings page. If you don't know or your opponent doesn't play according the chess openings , you should make the moves by using these principles. Of course you should decide which principles you will use according the situations in the game.

• You should move your pieces in order to control the central squares e4 , e5 , d4 , d5 .
• You should move central pawns first.
• Try to not move the same pieces twice if there is not an obligatory situation.
• Move knights and bishops first , then place your king in a secure corner by castling. Then move your queen. But don't attack at the opening by the queen . This most powerful piece will be threatened by the less valuable pieces ( bishop, knights, pawns ) of your opponent and you will waste your time when you try to protect your queen.
• The knights must be developed to f3 instead h3 , to c3 instead a3 for White . They must be developed to f6 instead h6 , to c6 instead h6 for Black
• Use rooks to control open and/or half-open lines.
• Do not attack early. Develop all your pieces before the attack.

As you see in the diagram No.1 and the notation below , White and Black haven't played their queen yet. They have castled and their king are on the secure squares. Opponent knights are pinned by the bishops

White and Black developed their minor pieces ( knights and bishops ). They have castled . White is developed well and controls the central squares by a lot of pieces. Black's rook is controlling half open e line , the knights are controlling central squares.