Ice Hockey Rink Dimensions

"An ice hockey rink is an ice rink that is specifically designed for ice hockey, a team sport. It is rectangular with rounded corners and surrounded by a wall approximately 1 meter (40-48 inches) high called the boards. ...
There are two standard sizes for hockey rinks: one used primarily in North America, the other used in the rest of the world.
International.
Hockey rinks in most of the world follow the International Ice Hockey Federation (IIHF) specifications, which is 61 metres (200 ft) × 30.5 metres (100 ft) with a corner radius of 8.5 metres (28 ft). The distance from the end boards to the nearest goal line is 4 metres (13 ft). The distance from each goal line to the nearest blue line is 17.3 metres (57 ft). The distance between the two blue lines is also 17.3 metres (57 ft).
North American.
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). 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." [Ice hockey rink. Wikipedia]
The diagram template "Hockey rink" for the ConceptDraw PRO diagramming and vector drawing software is included in the Hockey solution from the Sport area of ConceptDraw Solution Park.

"In ice hockey, a play is offside if a player on the attacking team enters the offensive zone before the puck, unless the puck is sent or carried there by a defending player. When an offside violation occurs, a linesman will stop play. A faceoff is then held at a neutral ice spot closest to the infraction to restart play. ...
The National Hockey League (NHL) and International Ice Hockey Federation (IIHF) apply similar rules for determining offside. A player is judged to be offside if their skates completely cross the blue line dividing their offensive zone from the neutral zone before the puck completely crosses the same line. In both organizations, it is the position of a player's skates that are important. They cannot use their stick or other part of their body to remain onside. The lone caveat to this rule is that an attacking player's skates may precede the puck into the attacking zone when they are skating backwards and if they are in control of the puck." [Offside (ice hockey). Wikipedia]
The ice hockey tactic diagram example "Offside (ice hockey)" was created using the ConceptDraw PRO diagramming and vector drawing software extended with the Hockey solution from the Sport area of ConceptDraw Solution Park.