How many times do Shane and Ilya meetup in a year?

This is for the hockey fans here -

In a season how many games would Montreal and Boston play against each other? Will all of them be in one of the two locations? Just was wondering how many times do Shane and Ilya actually meet in a year.

They are apparently in the same zone or division and so play a lot against each other.

Same would go for Ottawa after Ilya moves there - only its just an hour away from Montreal. That was the advantage, am I right?

And the playoffs - which I understand is a knockout tournament?