Here are the rules of Ice Hokey :

Object of the Game

  • The objective of the game is to score more goals than the opposite team.

The Teams

  • Each team has six players on the ice, one goal tender and five "skaters".
  • The five skaters have assigned positions: three forwards and two defensemen.
  • Regardless of assigned positions, all players except the goaltender can go anywhere they want on the ice.
  • The goaltender cannot cross the center red line that divides the rink into two halves.

I've selected those pictures because they represent really well the speed and the violence that this sport implies.