These principles have been proven throughout the years
They do not guarantee winning but they serve as a good guide
Control the center by putting your pawns there and supporting them with your mayor pieces. The opening is a race to see who can get its pieces out first and get as much control of the center as possible. If we gain control of the center let’s try to not give it up unless we will gain something else.
Move the knight and bishop on the king side so you can Castle quick
Always try to move the knights before the bishops
Castle quick, most of the time to the king side. This puts the king in a safe position and activates your rook getting it closer to the center.
Move pieces not pawn, limit your pawn moves to 2 or 3 max.
Try to move all your pieces from its original position this is call development.
Generally move your pieces to their best squares, in one move if you can. Nights c3-f3-c6-f6 bishops c4-f4 c5-f5
Whenever you can try to move with a threat. This will help you gain time. If you can’t try to put more pressure to the center.
Move minor pieces first not your queen or rooks because they can be attack and you would lose time.
Do not move your queen too quick (unless you see you can win something better if is a piece if it’s a pawn it might be trap or a gambit to activate pieces and try to win by force) When moving your queen, do not go too deep unless you see you can win something. If not keep your queen close to your king or where ever you think it supports the center better.
Connect your rooks (move your queen)
Look for a good place for your rooks open columns are good for Rooks specially the e and d columns are usually the best places for the rooks because usually the center opens rather quickly.
Do not move the same piece twice unless you are sure you can win something.
Do not concentrate on taking pawns in the first moves and do not take a pawn or a piece before finishing your development. It might be a sacrifice to make you lose time and your opponent might start an attack with a better development. If you decide to take the pawn or piece make sure you calculate the best you can.
Do not just exchange pawns like crazy remember all of them are potential queens
Keep at least one pawn in the center.
Whenever taking back with pawns or pieces, it is usually good to take towards the center.
When exchanging pieces always try to gain tempo.
The best pieces to put in the center are the queen and the knight. But the queen is good in the center if it can't be attack.
If you see your opponent is not following the principles. Take advantage by following them and developing your pieces so you can have more forces out. But do not start a premature attack, unless you are sure you can win something like a piece or a pawn. (Preferably a piece)
If both of you are following the principles. Do not start attacking too quickly.
Try not to move the pawns in front of the King after castling; unless you really have to, so you don’t get a back rank mate or one of your pieces is going to be pin. Those pawns protect the king very good.
Whenever possible try to defend your pieces with pawns instead of using pieces to defend other pieces. But be very careful with your pawn moves, most of the time they create a weakness after they move and they can’t go back.
In theory the opening ends when you connect your rooks.
Do not leave your pieces unprotected (Hanging) Make sure they are protected specially your Queen.
Do not start and attack or move a piece twice unless you have developed all your pieces.
Do not pin the opponents king’s Knight before he or she has castle
Keep in mind the frontier line get your pieces to the other side.
Always play with a plan in mind. A bad plan is better than no plan. In the opening, plan where every piece is going to go.
If you have a better development:
You can thing, calculate and develop an attack, but first you have to open lines for your better pieces.
You could think of a sacrifice but only if:
it secures a concrete advantage in development
it deflects the opponent's queen
it prevents the opponent from castling
it enables a strong attack to be developed or at least we can recover the material and leave the opponent’s king weaker
If you are behind in development keep things close and do not open lines.
Play a lot; play over the board games, online and against the computer.
Have fun, Play and win with grace, and lose with dignity. Do not be a sore loser, this will help you make good friend and learn even more.
These principles have been proven throughout the years
They do not guarantee winning but they serve as a good guide
You can thing, calculate and develop an attack, but first you have to open lines for your better pieces.
You could think of a sacrifice but only if: