what does a power play do in hockey
Power play (sporting term) In ice hockey, a team is said to be on a power play when at least one opposing player is serving a penalty, and the team has a numerical advantage on the ice (whenever both teams have the same number of players on the ice, there is no power play). Up to two players per side may serve in the penalty box, giving a team up to a possible 5-on-3 power play. If a goaltender commits a foul, another player who was on the ice at the time of the penalty serves.[1]
Ice hockey rink Most North American rinks follow the National Hockey League (NHL) specifications of 200 feet (61 m) × 85 feet (26 m) with a corner radius of 28 feet (8.5 m).[3] The distance from the end boards to the nearest goal line is 11 feet (3.4 m). The NHL attacking zones are expanded, with blue lines 64 feet (20 m) from the goal line and 50 feet (15 m) apart.[4] Canadian rinks may vary from NHL ones, especially in the goal crease shape (semi-circular), and in the rink dimensions which can accept widths from 85 to 100 feet.