nyoke wrote on 10/12/09 at 19:05:20:
The whole idea of adding an opening to one's repertoire to exercise tactics is very strange to me.
I don't think it's strange at all. It's one thing to learn tactics from a book, it's quite another to know when "the tactics light is on" as I used to say to my chess kids. (Funny, another lightbulb analogy.) The tactics light is on much more often in open positions, and I further opine that it's easier in such positions to know when it is on.
Further there is more to this recommendation of playing into open positions than just fostering tactics. Open positions are fundamental: blah, blah, blah (I just put those blahs to stand for the arguments I have already made a bizillion times upon this point, which I imagine everyone here will be familiar with already; upon request I will supply the actual reasoning).
Concerning TN, I think that either he is so advanced that he's forgotten what it's like to be an improving player, or he just doesn't get the whole idea of what sort of positions are really suitable for people in the 1200-1900 range. Arguably 1900-2100 is a gray zone, but even there I recommend that unless the player is capable of knocking off the occasional Master in open positions, he should persist in attempting to master them himself. But certainly the Kan would be one of the last systems I would recommend to someone under 2000. The Petroff or 1...e5, 2...Nc6 (which I consider preferable because of the educational value of learning the Two Knights) would be among the first. If someone was absolutely pining to play something besides 1...e5, I would recommend the Loewenthal Sicilian.
Oh, and another thing. Chess is pretty much tactics. Don't like tactics? Don't play chess.