The following is a list of key skills per player position:
Goalie
Goalie - primary skill
Speed - primary skill
Passing - currently not used, its value is automatically added to Goalie skill
Selfcontrol - currently not used its, value is automatically added to Goalie skill
Defender
Defense - primary skill
Strength - primary skill
Speed - secondary skill
Center
Attack - primary skill
Passing - primary skill
Speed - secondary skill
Strength - primary skill on faceoffs
Winger
Attack - primary skill
Speed - secondary skill
Passing - secondary skill
Defenders use all 'attacking' attributes (a bit less than attackers) when attacking and vice versa.
Special attributes usage
Shooting - used by forwards and defensemen to score goals
Strength - used for effective body-checks and hits on the opponent (Also affected by the aggressiveness setting of a line)
Self-Control - the ability to avoid taking dumb penalties (Also affected by the aggressiveness setting of a line)