The playing surface in hockey is broken up by two blue lines that signify each team's defensive zone. The defensive zone is the area behind the blue line that contains the goal each team is defending. The hockey defensive zone is commonly referred to as the "D-zone." It is vitally important for teams to have a strong defensive strategy to protect their defensive zone and goalie.
The Box+1 formation is a zone strategy where each defensive player is responsible for defending a certain section of the ice. This formation is called the Box+1 because the defenders and forwards form a box shape, while the center is an added defender who fills the gaps in the defense. The two defenders are placed in the corners on either side of the goalie, while the forwards are placed at the point several meters in front. If an offensive player stands in front of the net to distract the goalie, the center will guard that player allowing the goalie to have better vision of the ice.
This defensive scheme is designed to limit the amount of shots on goal. As the offensive approaches the goal, the defense will shrink together, creating limited opportunities for the offense to shoot or pass. The box formation is also used when teams are down a player on penalty kills to try and cause shot deflections.
A strong-side overload defense is when all five players on the defending team try to contain the offense to one side. The goal is to split the ice in half and contain the offense in a smaller area, making it easier to defend. This strategy limits the amount of space the offense has to maneuver. The strong-side overload scheme is commonly used when the opposing team has a player with a powerful and accurate shot from the top of the ice. Whichever side the strong offensive player is on, the defense will respond by placing more defenders on that side of the ice.
The defensive zone line signifies the offsides marker in the sport of hockey. In hockey, an offensive player cannot enter the opposing team's defensive zone before the puck. The offsides rule prevents teams from creating easy one-on-one scoring opportunities with the goalie. Without the offsides rule, the sport of hockey would turn into a sprinting battle with teams just launching the puck to a player already inside of the opposing team's defensive zone - harming the flow of the game.
The best way to teach defensive zone coverage in hockey is to study visuals before attempting to implement the defensive strategy on ice. Pictures help to explain where a player needs to be located in certain situations. Videos are a good way to show how players need to move within the defensive structure. After studying visual examples, then a coach should have their players practice the defense scheme on the ice.
There is not a clear answer to this question. Defensive strategies are designed to stop the offense from scoring, and are dependent on the opposing team's skill sets. Overall, the most common defensive strategy is the box+1 formation. Most teams use this strategy because the box+1 limits the amount of space the offensive team has to maneuver around the goal. The box+1 minimizes passing lanes and scoring opportunities.
In zone coverage defensive schemes, the center position has the most pivotal role on the team. The center controls the middle of the ice and has to respond quickly to whichever way the puck moves. The center acts as a support for the defenders by protecting the front of the net. When opposing players approach the goal, it is the center's job to limit their movement or steal the puck from them.