They may transpose into one another, certainly, but the modern defense is just characterized by ...g6 and ...Bg7, as far as I know, and that can lead a various number of different openings.
The Pirc is more specific. So if you play the Pirc, it's just a variation of the modern - the ideas are very similar, and there's no need to understand the "difference" between them, unless you're having trouble understanding the ideas of the Pirc.
Hi guys!
Has anybody here had experience with both openings; could you tell me about the pros and cons of each opening. I have developed an interest in the pirc/modern and have purchased Pirc Alert! I am looking for a resource on the pirc/modern and 2 books have come up. The modern Tiger and Chess developments the pirc. Right now i can only get one and am confused on which one to get. The one i get will decide whether i play the pirc or the modern. Thanks!
Kinghunter