take an open shot. This riding system is often used when a team is down and needs to recover the ball to catch up. Man-up and Man-down Man-up and Man-down, also known as power play, or extra man opportunity (EMO), refers to situations where one team is shorthanded as a result of a penalty. The offensive team attempts to take advantage of their extra player to score a goal, while the defensive team will try to stop them from scoring until they get back to even-handed. Because they are a player short, the defense, called man down defense (MDD), must resort to a zone, and there are several zones they can choose from. One is known as the box-and-one defense, because one defenseman covers the man on the crease, while the other 4 players form a box. This defense is used against an offense with only one player on the crease. Another zone is the 2-3, which is almost exactly like the basketball defense of the same name, with three low zones and 2 higher zones. The offense often chooses to run the same base offense as they run in settled situations, such as a 2-3-1, although offenses with two players on the crease, such as the 1-4-1, are less common. Another common offense that is run in man-up situations is the 3-2-1, also known as the "circle" offense, because no player is on the crease, and all of the players are on the perimeter in a circle. Lastly, there is the 3-3 offense, which has no player at X, and 3 midfielders across the top. One drawback to the 3-3 is that, on a shot, there is no attackman at X to back the shot up if it misses the goal. A common offensive tactic in man-up situations is the use of the carry, whereby an offensive player carries the ball from one perimeter position to another. This can be disorienting for a defense, because they must "pass off" the player to another zone, or else the whole defense must rotate. Often, after a carry, a player may pass back to the position he came from, because there may be a hole there. The offense will also try to draw a defensive player out to them, with the threat of a shot, and make a quick pass in an attempt to get an open shot. Defensive strategy centers around