The objective of soccer is simple: score more goals than your opponent. A team scores a goal when the entire ball crosses the opponent's goal line, between the posts and under the crossbar. Players primarily use their feet, head, and chest to move the ball. Only one player on the field is allowed to handle the ball with their hands and arms.

A soccer match is played on a rectangular field called a pitch. The longer boundary lines are touchlines, and the shorter lines are goal lines. The field is divided in half by the halfway line, which has a center circle in the middle. In front of each goal is a large rectangle called the penalty area. This area is important for several rules, especially for the goalkeeper and for penalty kicks.

A standard soccer match features two teams of 11 players each. One of these players is the goalkeeper, the only player permitted to use their hands within their own penalty area. The other ten are outfield players, generally split into three categories.

• Defenders: Play closest to their own goal and are primarily responsible for stopping the opposing team from scoring.
• Midfielders: Operate in the middle of the field, linking defense and attack. They do a lot of running, both defending and creating scoring chances.
• Forwards: Positioned closest to the opponent's goal, their main job is to score.

These positions are just general guidelines, and players will move all over the field during a game. The formation, or how the players are arranged, can change depending on the team's strategy.

While there are many laws in soccer, a few fundamental rules govern most of the game's flow. Understanding them is key to following the action.

Perhaps the most confusing rule for newcomers is the offside rule. In simple terms, an attacking player cannot be ahead of both the ball and the second-to-last defender (which includes the goalkeeper) when the ball is played forward to them. This rule prevents players from simply waiting near the opponent's goal for an easy scoring opportunity.

A foul occurs when a player acts in a way deemed unfair or unsafe by the referee, such as tripping, pushing, or holding an opponent. Handling the ball with hands or arms is also a foul for any player other than the goalkeeper in their penalty area.

For more serious fouls, the referee can issue cards. A yellow card is a warning. A second yellow card for the same player results in a red card, meaning they are sent off the field and their team must play with one fewer player for the rest of the game. A straight red card can be given for very serious offenses.

When a foul is committed or the ball goes out of play, the game is restarted in a specific way.

Now that you know the basic rules, let's check your understanding.

These rules form the foundation of soccer. While there are more nuances, understanding these basics is all you need to start playing or watching your first game.