The first 10 to 12 moves of a chess game are called the opening. Your goal here isn't to checkmate your opponent right away. It's to set up your pieces for the battles to come in the middlegame. Instead of memorizing specific move sequences, strong players rely on a few key principles. Think of them as guidelines that will help you find good moves in any situation.

These three goals work together. Let's break down what they mean in practice.

Imagine the chessboard is a battlefield. The four squares in the middle—e4, d4, e5, and d5—are the high ground. Pieces placed in the center can move to more squares and exert influence all over the board. A knight in the center can attack eight squares, but a knight in the corner can only attack two.

Your first few moves should aim to control these key squares, usually by placing a pawn there. This stakes your claim and makes it harder for your opponent to get their pieces to their best spots.

Controlling the center doesn't just mean parking your pieces there. It means using your pawns and pieces to attack and defend these squares, creating a strong foundation for the rest of your game.

At the start of the game, most of your powerful pieces are stuck on the back rank, behind a wall of pawns. "Developing" your pieces means moving them off their starting squares and into active positions where they can participate in the game. You want to get your army off the bench and into the fight.

The best practice is to develop your knights and bishops (the "minor pieces") first. They are more nimble than the rooks and queen. Move each piece just once in the opening unless you have a very good reason to move it again. Efficiency is key.

One common mistake is to bring the queen out too early. The queen is your most powerful piece, which makes it a prime target for your opponent. If you move your queen into the open, your opponent can develop their own pieces by attacking it, forcing you to waste time moving your queen to safety while they improve their position.

The king starts the game in the center of the board. As the game opens up, this becomes a very dangerous place. An exposed king can easily fall victim to a surprise attack. The most important job in the opening is to get your king to safety.

The best way to do this is by castling. Castling is a special move where the king moves two squares towards a rook, and the rook jumps to the other side of the king. This single move accomplishes two crucial things: it tucks the king away behind a shield of pawns and brings a powerful rook into the game.

You should aim to castle early in the game, typically within the first seven or eight moves. Once your king is safe, you can focus on launching your own attacks with less fear of a sudden counter-strike.

Now, let's test your understanding of these core principles.

By following these three principles—controlling the center, developing your pieces, and keeping your king safe—you'll build a solid foundation for every game you play.