Forechecking
Applying pressure to the opposing team in their own defensive zone to disrupt their breakout and force turnovers. Aggressive forechecking systems like 2-1-2 or 1-2-2 define a team's identity.
More in tactics
Own goal
Scoring on own team's net
Odd-man rush
Attack with more attackers than defenders
Backcheck
Skating hard back toward your own end to help defend. Backchecking is one of the most important habits in hockey. The best players in the world backcheck. When a player does not backcheck, it creates an odd-man rush, which is one of the highest percentage scoring situations. Players who refuse to backcheck will find themselves on the bench.
Neutral zone trap
Defensive system clogging middle ice