Attacking in 2 on 1's
I believe that there are some statements for the attackers that are absolutely true regarding 2 on 1 situations:
The man without the puck should "read" the defender. Is there a passing lane for him to go to the net or should he stay back? The attacker with the puck should judge if there is a passing lane for his partner and deliver the puck if his teammate breaks.
Also, the puckcarrier could sprint for the net, thus forcing the defender to turn and pursue him. When this occurs, the attacker could pass back in the center to his teammate who would trail the play and be in position for a straight-on shot. If the defender plays softly as the attacker drives for the net, the puckcarrier can continue and take a shot.
Of course, both attackers must be synchronized. Consequently, teams should practice establishing keys for each player to identify and respond to in a particular way. If each cannot decipher the actions of the other, their chance for success would be greatly diminished.