In the main line of the Caro-Kann, what is the motivation behind the move 6. h4? What does this do?
White plans to fix Black's pawn on h6 so that if Black castles kingside, White can attack with g4-g5. Also, it means that dark-square Bishop endings will favor White. The downside is that in Rook endgames this pawn tends to become weak and White usually takes a big risk if he chooses to castle kingside after weakening the structure in this way. Black usually takes advantage of White castling 'the wrong way' by playing Bd6.
Whoa, you misread what I said! I asked if you wanted to play a legitimate game with me as White because last time you were Black against me I played the Cochrane.