interesting question...i dont think i can remember the last time i played against the exchange variation...
1. e4 e6 2. d4 d5 3. exd5 exd5
i imagine black following with 4. ... c5
i know this is inviting white to capture 5. dxc5 leaving black with an isolated queen pawn. like all isolated pawns, the IQP is an inherent weakness that can loose black the endgame. however...this is still move 5 and the endgame is (hopefully) still too far away. the IQP is the lone pawn in the center, and as such severely cramps white's position (and gives black the space advantage)!! if white cannot solve this problem quick enough, or does not consider this a big enough problem, there may not be any endgame for him :)
black's plan would be...to generate as much piece activity as he can!
- muster his pieces behind the IQP to keep his center pawn protected. but this is not just protecting the lone pawn. behind the IQP is where black's space advantage is. if his forces can gather here, it will be their springboard for a coordinated attack against the white king.
- protect the d4 square! black must not just dehend his IQP, he must also guard the square in front of it. black must always keep in mind that he will want to move the IQP forward to further cramp white's position. the further ahead the IQP moves, the more potent it becomes. before the IQP becomes black's endgame headache, it is first his middlegame shield and battering ram :)
- if plan A and plan B above fails...exchange the IQP away before the endgame...and improvise plan C :D
so i guess im imagining the exchange variation problem to become one of an IQP problem for black. i'm not sure if there are articles/videos/books/tutorials on IQP positions here or the internet, but there must be. i mean, it is the internet afterall.
if you're interested in this plan and you can get your hands on this book: "50 Essential Chess Lessons"...it has devoted four illustrative games from grandmaster play on how to take advantage (and defend against) IQP positions. its quite a good read.
I like playing the French defense but whenever white throws the exchange variation I run out of ideas. It is so symetrical it seems hard to find attacking ideas as black. Any helpful illustrative games here on how to play actively in this variation?