45 ( +1 | -1 ) What do you play against the Torre, London, etc.?This is excluding anyone who plays the King's Indian most of the time-- those players don't need a different approach against most of these openings.
I am referring to someone who plays the Nimzo Indian, just for example. That player would be ready for 1. d4 Nf6 2. c4, but what about 2. e3, 2. Bf4, 2. Nc3, etc.-- do you have a set way of meeting these openings, or do you just wing it depending on what White is up to?
I meant to include the Colle, Veresov, BDG and Trompowsky also.
61 ( +1 | -1 ) i think it all comes down to your style, and what sorts of positions you would feel comfortable with depending on which of these openings white decides to play.
I go with my gut personally, but I try to have an eye to what my opponent is up to.
if 1.d4 Nf6 2.Nc3 for example, you might want to play 2...d5 to discourage 3.e4 where white could gain a big center.
If you're not comfortable playing the black side of a BDG, you could play a caro-kann 2...c6 or a french 2...e6.
with the other openings (2.e3, 2.Nf3, 2.Bf4) you can play an immediate 2...c5 if you'd like. white isn't putting a question to your d5 pawn as he does with 2.c4, so you have the opportunity to be a bit more aggressive yourself.
154 ( +1 | -1 ) Generally I dont worry about them very much. I learned the Tarrasch defense as my first defense to d4. The advantage to it is that its really simple and move orders dont matter much. You can get a good game with a Tarrasch-like formation against anything (except 1. e4) . Usually if you play c5 and they cant play c4 you should equalize pretty easily. If they do eventually play c4 then I've just transposed into the lines I was prepared for anyway. I've been experimenting with some new openings recently but I know if they throw a different move order at me I can always fall back into a Tarrasch and have nothing to worry about. Also, if I know going in that the person I'm playing is going to play a Colle then what I've been playing lately is a king's indian formation. The fianchetto seems to kill the Colle attack pretty well. All that is OTB though. In correspondence, I usually just look up the best book lines I can play from a given position whenever they deviate. My advice: Step 1) Decide what defense you're going to play against the queen's gambit. Step 2) Work out all of the move orders. Step 3) Find the best equalizing lines you can find against the queen pawn games that fit within the move orders you've already worked out. Step 4) If you're still having trouble against a particular opening then find a GM who plays the same opening you do and see how they handle it.
24 ( +1 | -1 ) If you play the Nimzo-Indian, you should supplement this with knowlege of the Queen's Indian Defense. If you have a knowledge of the ideas behind the Queen's Indian Defense, you should be able to deal with most d4 systems.