Originally posted by paulbuchmanfromfics
I kind of like the c5 move too. It was used by Botvinnik against Tal in the return match. The main problem with (the superior?) Bf5 is all the bloody variations. 3. ... Bf5 4.Nc3 is a real mess. You have to stay pretty booked up just to survive the g4 pawn thrust attack. Some variations are analyzed out the endgame, and the evaluations are a ...[text shortened]... th French positions though because black locks in his queen's bishop with e6 a lot of the time.
Yea I know 3...Bf5 is the popular choice, but I like Houska's recommendation in the "Play the Caro Kann" book. 3...Bf5 is committing the bishop to that square and gives white many options (and lots of theory). In playing 3...c5 you are really putting the pressure and question on white. There's no really safe way to meet it. If white takes, he messes up his pawn structure and black can start putting major pressure on the center. Note, however, that 4.dxc5 is the number 1 choice after 3...c5, so it is definitely playable, but can lead to a messy game, and white can find his center under a lot of pressure if he is not careful. If white tries to meet it "safely" with 4.c3 then black plays 4...Nc6 hitting the center/pawn. Now if white plays 5.Nf3, then black plays 5...Bg4! In this case g4 is the stronger square for the light square bishop putting more pressure on d4, and exchanging the bishop for the knight isn't bad since knights are normally stronger in closed positions. Basically your holding off development of the light square bishop to see which square is optimal depending on what white plays. It leads to interesting positional play where black gets many chances to put pressure on the white's position. It differs from the french because you are not locking in that light square bishop, you are just waiting to see if it belongs on g4 or f5. I like the optional kind of play!
I won't go through all the variations she talks about since this post was about white playing 5.Bb5 pinning the knight. Someone at the club mentioned this move and it's not mentioned in Houska's book, and it was only played once in my database. I think either 5...Qa5, or Qb6 is fine for black. 5...Qa5 is probably what I'd go with for reasons mentioned above. I don't mind doubling the pawns since white is giving up the bishop pair and the doubled pawns does strengthen the center. The open b-file can come into play nicely as well. Plus, depending on how play proceeds a pawn trade in the center takes care of the doubled pawns and clears the way for c5 being protected by the queen or after e6 is played. The positions don't look bad at all for black, he has a dynamic position, and a long term plus with the two bishops, leaving a tons of good plans and play.